DWQ-2024-006791

CENTRAL DAVIS
SEWER DISTRICT
BIOSOLIDS REPORT
2022

(This Page Intentionally Left Blank)
Page 1 of 20
Utah Department of Environmental Quality (UDEQ) and the Utah Division of Water Quality (DWQ) received authorization from EPA to administer the Federal biosolids program (40 CFR
part 503) on October 16, 1996. The Federal biosolids program regulations require certain publicly owned treatment works (POTWs) and Class I sewage sludge management facilities to
submit a Sewage Sludge (Biosolids) Annual Report (see 40 CFR 503.18, 503.28, 503.48). Facilities that must submit a Sewage Sludge (Biosolids) Annual Report include POTWs with a
design flow rate equal to or greater than one million gallons per day, POTWs that serve 10,000 people or more, Class I Sludge Management Facilities (as defined by 40 CFR 503.9), and
facilities otherwise required to file this report (e.g., permit condition, enforcement action, state law). This is the electronic form for Utah Sewage Sludge (Biosolids) Annual Report filers to
use.
For the purposes of this form, the term 'sewage sludge' also refers to the material that is commonly referred to as 'biosolids'.
Public Availability of Submitted Information
UDEQ/DWQ may make all the information submitted through this form (including all attachments) available to the public without further notice to you. Do not use this online form to submit
confidential business information (CBI) or if you intend to assert a CBI claim on any of the submitted information. Pursuant to 40 CFR 2.203(a), UDEQ/DWQ is providing you with notice
that all CBI claims must be asserted at the time of submission. The State of Utah cannot accommodate a late CBI claim to cover previously submitted information because efforts to
protect the information are not administratively practicable since it may already be disclosed to the public. Although we do not foresee a need for persons to assert a claim of CBI based
on the types of information requested in this form, if persons wish to assert a CBI claim we direct submitters to contact the UDEQ/DWQ Permitting Program (801-536-4300) for further
guidance.
Please note that UDEQ/DWQ may contact you after you submit this report for more information regarding your biosolids management program.
This collection of information is approved by OMB under the Paperwork Reduction Act, 44 U.S.C. 3501 et seq. (OMB Control No. 2040-0004). Responses to this collection of information
are mandatory in accordance with EPA regulations (40 CFR 503.18, 503.28, and 503.48). An agency may not conduct or sponsor, and a person is not required to respond to, a collection
of information unless it displays a currently valid OMB control number. The public reporting and recordkeeping burden for this collection of information are estimated to average 3 hours
per response. Send comments on the Agency’s need for this information, the accuracy of the provided burden estimates and any suggested methods for minimizing respondent burden
including through the use of automated collection techniques to the Director, Regulatory Support Division, U.S. Environmental Protection Agency (2821T), 1200 Pennsylvania Ave., NW,
Washington, D.C. 20460. Include the OMB control number in any correspondence. Do not send the completed form to this address.
Facility Information
Program Information
Treatment Processes
STATE OF UTAH, DEPARTMENT OF ENVIRONMENTAL
QUALITY, DIVISION OF WATER QUALITY
195 North 1950 West, P.O Box 144870, Salt Lake City, UT
84114-4870
BIOSOLIDS ANNUAL REPORT
Form Approved.
OMB No. 2040-0004.
Exp. 03/31/2022
Facility Name:CENTRAL DAVIS CO SEWER
NPDES ID:UTL020974
Please select all of the following that apply to your obligation to submit a Sewage Sludge (Biosolids) Annual Report in compliance with 40 CFR part 503. The facility is:
a Class I Sludge Management Facility as defined in 40 CFR 503.9
a POTW with a design flow rate equal to or greater than one million gallons per day
a POTW that serves 10,000 people or more
If your facility is a POTW, please provide the estimated total amount of sewage sludge produced at your facility for the reporting period (in dry metric tons). If your facility
is not a POTW, please provide the estimated total amount of biosolids produced at your facility for the reporting period (in dry metric tons).
2562
Reporting Period Start Date:01/01/2022 Reporting Period End Date:12/31/2022
Processes to Significantly Reduce Pathogens (PSRP):
Anaerobic Digestion
Processes to Further Reduce Pathogens (PFRP):
Higher Temperature Composting
Physical Treatment Options:
Preliminary Operations (e.g., sludge grinding, degritting, blending)
Page 2 of 20
Analytical Methods
Sludge Management - Land Application
Thickening (e.g., Gravity and/or Flotation Thickening, Centrifugation, Belt Filter Press, Vacuum Filter, Screw Press)
Other Processes to Manage Sewage Sludge:
Did you or your facility collect sewage sludge or biosolids samples for laboratory analysis? YES NO
Analytical Methods
EPA Method 6010 - Arsenic (ICP-OES)
EPA Method 6010 - Cadmium (ICP-OES)
EPA Method 6010 - Chromium (ICP-OES)
EPA Method 6010 - Copper (ICP-OES)
EPA Method 6010 - Lead (ICP-OES)
EPA Method 6010 - Molybdenum (ICP-OES)
EPA Method 6010 - Nickel (ICP-OES)
EPA Method 6010 - Selenium (ICP-OES)
EPA Method 6010 - Zinc (ICP-OES)
Standard Method 4500-NH3 - Ammonia Nitrogen
Standard Method 4500-Norg - Organic Nitrogen
Standard Method 2540 - Total Solids
Standard Method 2540 - Fixed Solids
Standard Method 2540 - Volatile Solids
EPA Method 1311 - Toxicity Characteristic Leaching Procedure
EPA Method 1682 - Salmonella
Other Analytical Methods
Other Analytical Methods Text Area:
Nitrate EPA Method 300.0 Nitrite EPA Method 300.0
Other Nitrate Nitrogen Analytical Method
ID: 001
Amount:241
Management Practice Detail:Agricultural Land Application
Bulk or Bag/Container:Bulk
Handler, Preparer, or Applier Type:On-Site Owner or Operator
Pathogen Class:Class B
Sewage Sludge or Biosolids Pathogen Reduction Options:
Class B-Alternative 2 PSRP 3: Anaerobic Digestion
Sewage Sludge or Biosolids Vector Attraction Reduction Options:
Option 1 - Volatile Solids Reduction
Did the facility land apply bulk sewage sludge when one or more pollutants in the sewage sludge exceeded 90 percent or more of any of the cumulative pollutant loading
rates in Table 2 of 40 CFR 503.13?
YES NO UNKNOWN
Page 3 of 20
Monitoring Data
Compliance Monitoring Periods
INSTRUCTIONS: Pollutants, pathogen densities, and vector attraction reduction must be monitored when sewage sludge or biosolids are applied to the land. Please
use the following section to report monitoring data for the land application conducted by you or your facility in the reporting period for this SSUID. These monitoring
data should be representative of the sewage sludge or biosolids that was applied to land during the compliance monitoring period for this SSUID (40 CFR 503.8(a)
(http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_18)). All pollutant monitoring data should be reported in milligrams per kilogram
(mg/kg), dry weight basis. EPA will be using these data to demonstrate compliance with EPA's land application requirements (40 CFR 503, Subpart B).
INSTRUCTIONS: Please use the table below to identify the start date and end date for each compliance monitoring period. You can adjust the start and end dates as
needed. Please note that the compliance monitoring periods cannot overlap and that each compliance monitoring period must have a start date that is equal to or less
than the end date. The number of compliance monitoring periods is based on the number of metric tons (dry weight basis) of sewage sludge or biosolids land applied
in the reporting period (summed across all land application SSUIDs). For example, you will need to provide monitoring data for 12 compliance monitoring periods for
each land application SSUID when you land apply 15,000 or more metric tons (dry weight basis) of sewage sludge or biosolids (summed across all land application
SSUIDs) in the reporting period (see 40 CFR 503.16 (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_116)).
Compliance Monitoring Event No. 1 Compliance Monitoring Period Start Date:
01/01/2022
Compliance Monitoring Period End Date:
03/31/2022
Do you have analytical results to report for this monitoring period? YES NO
Are you reporting maximum pollutant concentrations that are equivalent to the monthly average pollutant concentrations for this compliance monitoring event?
[For example, this will be the case if you only collected and analyzed one sample of sewage sludge or biosolids for this compliance monitoring period.]
YES NO
Maximum Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter Value Qualifier
Parameter Concentration (mg/kg, dry-weight basis
or Pass/Fail)
If No Data, Select One Of The
Following
Arsenic =20.5
Cadmium J (Below RL but Above
MDL)
0.32
Copper =802
Lead =9.11
Mercury =0.2
Molybdenum =11.4
Nickel =9.26
Selenium =5.6
Zinc =682
This section summarizes the maximum pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring period for
this SSUID. In accordance with 40 CFR 503.13(a) (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113), EPA's regulations prohibit
land application of bulk sewage sludge or sewage sludge sold or gave away sewage sludge in a bag or other container when one or more sewage sludge pollutant
concentrations in the sewage sludge exceed a land application ceiling pollutant limit (Table 1 of 40 CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?
node=pt40.32.503&rgn=div5#se40.32.503_113)). EPA will compare the pollutant concentrations in this section against the ceiling concentration limits in Table 1 of 40
CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113) to identify noncompliance events. All pollutant monitoring data
should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Please only select a "No Data Indicator Code" if you are reporting no data for the sampling period or particular parameter.
Pathogen And Vector Attraction Reduction
Note: Pathogenic organisms are disease-causing organisms. These include, but are not limited to, certain bacteria, protozoa, viruses, and viable helminth ova [see 40
CFR 503.31(f) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(f))]. The following units should be used for
pathogen data (see 40 CFR 503.32 (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.32)):
Density of fecal coliform in the sewage sludge shall be reported as Most Probable Number per gram of total solids (dry weight basis).
When using the Class B - Alternative 1 management option, the density of fecal coliform in the sewage sludge shall be reported as Most Probable
Number or Colony Forming Units per gram of total solids (dry weight basis) expressed as the geometric mean of the results of seven individual
samples of sewage sludge.
Page 4 of 20
Sewage Sludge or Biosolids
Parameter
Vector Attraction Reduction Selected
Options
Value
Qualifier Value
If No Data, Select One Of The
Following
Solids, total volatile percent removal Option 1 - Volatile Solids Reduction =69
Density of Salmonella sp. bacteria in the sewage sludge shall be reported as Most Probable Number per four grams of total solids (dry weight basis).
Density of enteric viruses shall be reported as plaque-forming unit per four grams of total solids (dry weight basis).
Density of Helminth Ova. shall be reported as viable helminth ovum per four grams of total solids (dry weight basis).
Report the vector attraction reduction data for the biosolids or sewage sludge that was placed on an active sewage sludge unit during the compliance monitoring
period for this SSUID.
Note: Vector attraction is the characteristic of sewage sludge that attracts rodents, flies, mosquitos, or other organisms capable of transporting infectious agents [see
40 CFR 503.31(k) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(k))]. The following units should be used
for vector attraction reduction data (see 40 CFR 503.33) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.33):
Solids, total volatile, shall be reported as percent removal. See calculation procedures in "Environmental Regulations and Technology - Control of
Pathogens and Vector Attraction in Sewage Sludge" (https://www.epa.gov/biosolids/control-pathogens-and-vector-attraction-sewage-sludge), EPA-625/R-
92/013, 1992, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268) [see 40 CFR 503.33(b)(1) (https://www.ecfr.gov/current/title-40/chapter-
I/subchapter-O/part-503/subpart-D/section-503.33#p-503.33(b)(1))]. Volatile solids is the amount of the total solids in sewage sludge lost when the sewage
sludge is combusted at 550 degrees Celsius in the presence of excess air [see 40 CFR 503.31(l) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-
O/part-503/subpart-D/section-503.31#p-503.31(l))].
Specific Oxygen Update Rate (SOUR) shall be reported as milligrams of oxygen per hour per gram of total solids (dry weight basis) at a temperature of 20
degrees Celsius. SOUR is the mass of oxygen consumed per unit time per unit mass of total solids (dry weight basis) in the sewage sludge [see 40 CFR
503.31(h) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(h))].
Monthly Average Pollutant Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter Value Qualifier
Parameter Concentration (mg/kg, dry-weight basis
or Pass/Fail)
If No Data, Select One Of The
Following
Arsenic =20.5
Cadmium J (Below RL but Above
MDL)
0.32
Copper =802
Lead =9.11
Mercury =0.2
Molybdenum =11.4
Nickel =9.26
Selenium =5.6
Zinc =682
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)
If No Data, Select One Of The
Following
Total Nitrogen (TKN plus Nitrate-Nitrite)=3850
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)
If No Data, Select One Of The
Following
Total Phosphorus (as P)=28200
This section summarizes the monthly average pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring
period for this SSUID. All pollutant monitoring data should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Report the average concentration (mg/kg, dry weight basis) of Total Nitrogen (TKN plus Nitrate-Nitrite, as N) and the average concentration (mg/kg, dry weight basis)
of Total Phosphorus (as P) in the sewage sludge or biosolids that was applied to land during the compliance monitoring period for this SSUID. The monitoring for Total
Phosphorus (as P) is optional.
Page 5 of 20
Compliance Monitoring Event No. 2 Compliance Monitoring Period Start Date:
04/01/2022
Compliance Monitoring Period End Date:
06/30/2022
Do you have analytical results to report for this monitoring period? YES NO
Are you reporting maximum pollutant concentrations that are equivalent to the monthly average pollutant concentrations for this compliance monitoring event?
[For example, this will be the case if you only collected and analyzed one sample of sewage sludge or biosolids for this compliance monitoring period.]
YES NO
Maximum Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis or
Pass/Fail)
If No Data, Select One Of The
Following
Arsenic =29
Cadmium =0.168
Copper =1020
Lead =8.19
Mercury =0.24
Molybdenum =12.6
Nickel =9.07
Selenium =9.33
Zinc =809
This section summarizes the maximum pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring period for
this SSUID. In accordance with 40 CFR 503.13(a) (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113), EPA's regulations prohibit
land application of bulk sewage sludge or sewage sludge sold or gave away sewage sludge in a bag or other container when one or more sewage sludge pollutant
concentrations in the sewage sludge exceed a land application ceiling pollutant limit (Table 1 of 40 CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?
node=pt40.32.503&rgn=div5#se40.32.503_113)). EPA will compare the pollutant concentrations in this section against the ceiling concentration limits in Table 1 of 40
CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113) to identify noncompliance events. All pollutant monitoring data
should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Please only select a "No Data Indicator Code" if you are reporting no data for the sampling period or particular parameter.
Pathogen And Vector Attraction Reduction
Sewage Sludge or Biosolids
Parameter
Vector Attraction Reduction Selected
Options
Value
Qualifier Value
If No Data, Select One Of The
Following
Solids, total volatile percent removal Option 1 - Volatile Solids Reduction =49
Note: Pathogenic organisms are disease-causing organisms. These include, but are not limited to, certain bacteria, protozoa, viruses, and viable helminth ova [see 40
CFR 503.31(f) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(f))]. The following units should be used for
pathogen data (see 40 CFR 503.32 (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.32)):
Density of fecal coliform in the sewage sludge shall be reported as Most Probable Number per gram of total solids (dry weight basis).
When using the Class B - Alternative 1 management option, the density of fecal coliform in the sewage sludge shall be reported as Most Probable
Number or Colony Forming Units per gram of total solids (dry weight basis) expressed as the geometric mean of the results of seven individual
samples of sewage sludge.
Density of Salmonella sp. bacteria in the sewage sludge shall be reported as Most Probable Number per four grams of total solids (dry weight basis).
Density of enteric viruses shall be reported as plaque-forming unit per four grams of total solids (dry weight basis).
Density of Helminth Ova. shall be reported as viable helminth ovum per four grams of total solids (dry weight basis).
Report the vector attraction reduction data for the biosolids or sewage sludge that was placed on an active sewage sludge unit during the compliance monitoring
period for this SSUID.
Note: Vector attraction is the characteristic of sewage sludge that attracts rodents, flies, mosquitos, or other organisms capable of transporting infectious agents [see
40 CFR 503.31(k) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(k))]. The following units should be used
for vector attraction reduction data (see 40 CFR 503.33) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.33):
Page 6 of 20
Solids, total volatile, shall be reported as percent removal. See calculation procedures in "Environmental Regulations and Technology - Control of
Pathogens and Vector Attraction in Sewage Sludge" (https://www.epa.gov/biosolids/control-pathogens-and-vector-attraction-sewage-sludge), EPA-625/R-
92/013, 1992, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268) [see 40 CFR 503.33(b)(1) (https://www.ecfr.gov/current/title-40/chapter-
I/subchapter-O/part-503/subpart-D/section-503.33#p-503.33(b)(1))]. Volatile solids is the amount of the total solids in sewage sludge lost when the sewage
sludge is combusted at 550 degrees Celsius in the presence of excess air [see 40 CFR 503.31(l) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-
O/part-503/subpart-D/section-503.31#p-503.31(l))].
Specific Oxygen Update Rate (SOUR) shall be reported as milligrams of oxygen per hour per gram of total solids (dry weight basis) at a temperature of 20
degrees Celsius. SOUR is the mass of oxygen consumed per unit time per unit mass of total solids (dry weight basis) in the sewage sludge [see 40 CFR
503.31(h) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(h))].
Monthly Average Pollutant Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis or
Pass/Fail)
If No Data, Select One Of The
Following
Arsenic =29
Cadmium =0.168
Copper =1020
Lead =8.19
Mercury =0.24
Molybdenum =12.6
Nickel =9.07
Selenium =9.33
Zinc =809
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)
If No Data, Select One Of The
Following
Total Nitrogen (TKN plus Nitrate-Nitrite)=7800
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)
If No Data, Select One Of The
Following
Total Phosphorus (as P)=32600
This section summarizes the monthly average pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring
period for this SSUID. All pollutant monitoring data should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Report the average concentration (mg/kg, dry weight basis) of Total Nitrogen (TKN plus Nitrate-Nitrite, as N) and the average concentration (mg/kg, dry weight basis)
of Total Phosphorus (as P) in the sewage sludge or biosolids that was applied to land during the compliance monitoring period for this SSUID. The monitoring for Total
Phosphorus (as P) is optional.
Compliance Monitoring Event No. 3 Compliance Monitoring Period Start Date:
07/01/2022
Compliance Monitoring Period End Date:
09/30/2022
Do you have analytical results to report for this monitoring period? YES NO
Are you reporting maximum pollutant concentrations that are equivalent to the monthly average pollutant concentrations for this compliance monitoring event?
[For example, this will be the case if you only collected and analyzed one sample of sewage sludge or biosolids for this compliance monitoring period.]
YES NO
Maximum Concentration Data for All Sewage Sludge or Biosolids Applied to Land
This section summarizes the maximum pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring period for
this SSUID. In accordance with 40 CFR 503.13(a) (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113), EPA's regulations prohibit
land application of bulk sewage sludge or sewage sludge sold or gave away sewage sludge in a bag or other container when one or more sewage sludge pollutant
concentrations in the sewage sludge exceed a land application ceiling pollutant limit (Table 1 of 40 CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?
Page 7 of 20
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis or
Pass/Fail)
If No Data, Select One Of The
Following
Arsenic =32.9
Cadmium =0.899
Copper =963
Lead =7.89
Mercury =0.38
Molybdenum =14.4
Nickel =14.7
Selenium =8.84
Zinc =926
node=pt40.32.503&rgn=div5#se40.32.503_113)). EPA will compare the pollutant concentrations in this section against the ceiling concentration limits in Table 1 of 40
CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113) to identify noncompliance events. All pollutant monitoring data
should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Please only select a "No Data Indicator Code" if you are reporting no data for the sampling period or particular parameter.
Pathogen And Vector Attraction Reduction
Sewage Sludge or Biosolids
Parameter
Vector Attraction Reduction Selected
Options
Value
Qualifier Value
If No Data, Select One Of The
Following
Solids, total volatile percent removal Option 1 - Volatile Solids Reduction =51
Note: Pathogenic organisms are disease-causing organisms. These include, but are not limited to, certain bacteria, protozoa, viruses, and viable helminth ova [see 40
CFR 503.31(f) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(f))]. The following units should be used for
pathogen data (see 40 CFR 503.32 (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.32)):
Density of fecal coliform in the sewage sludge shall be reported as Most Probable Number per gram of total solids (dry weight basis).
When using the Class B - Alternative 1 management option, the density of fecal coliform in the sewage sludge shall be reported as Most Probable
Number or Colony Forming Units per gram of total solids (dry weight basis) expressed as the geometric mean of the results of seven individual
samples of sewage sludge.
Density of Salmonella sp. bacteria in the sewage sludge shall be reported as Most Probable Number per four grams of total solids (dry weight basis).
Density of enteric viruses shall be reported as plaque-forming unit per four grams of total solids (dry weight basis).
Density of Helminth Ova. shall be reported as viable helminth ovum per four grams of total solids (dry weight basis).
Report the vector attraction reduction data for the biosolids or sewage sludge that was placed on an active sewage sludge unit during the compliance monitoring
period for this SSUID.
Note: Vector attraction is the characteristic of sewage sludge that attracts rodents, flies, mosquitos, or other organisms capable of transporting infectious agents [see
40 CFR 503.31(k) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(k))]. The following units should be used
for vector attraction reduction data (see 40 CFR 503.33) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.33):
Solids, total volatile, shall be reported as percent removal. See calculation procedures in "Environmental Regulations and Technology - Control of
Pathogens and Vector Attraction in Sewage Sludge" (https://www.epa.gov/biosolids/control-pathogens-and-vector-attraction-sewage-sludge), EPA-625/R-
92/013, 1992, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268) [see 40 CFR 503.33(b)(1) (https://www.ecfr.gov/current/title-40/chapter-
I/subchapter-O/part-503/subpart-D/section-503.33#p-503.33(b)(1))]. Volatile solids is the amount of the total solids in sewage sludge lost when the sewage
sludge is combusted at 550 degrees Celsius in the presence of excess air [see 40 CFR 503.31(l) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-
O/part-503/subpart-D/section-503.31#p-503.31(l))].
Specific Oxygen Update Rate (SOUR) shall be reported as milligrams of oxygen per hour per gram of total solids (dry weight basis) at a temperature of 20
degrees Celsius. SOUR is the mass of oxygen consumed per unit time per unit mass of total solids (dry weight basis) in the sewage sludge [see 40 CFR
503.31(h) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(h))].
Monthly Average Pollutant Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis or
Pass/Fail)
If No Data, Select One Of The
Following
This section summarizes the monthly average pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring
period for this SSUID. All pollutant monitoring data should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Page 8 of 20
Arsenic =32.9
Cadmium =0.899
Copper =963
Lead =7.89
Mercury =0.38
Molybdenum =14.4
Nickel =14.7
Selenium =8.84
Zinc =926
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)
If No Data, Select One Of The
Following
Total Nitrogen (TKN plus Nitrate-Nitrite)=7240
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)
If No Data, Select One Of The
Following
Total Phosphorus (as P)=36300
Report the average concentration (mg/kg, dry weight basis) of Total Nitrogen (TKN plus Nitrate-Nitrite, as N) and the average concentration (mg/kg, dry weight basis)
of Total Phosphorus (as P) in the sewage sludge or biosolids that was applied to land during the compliance monitoring period for this SSUID. The monitoring for Total
Phosphorus (as P) is optional.
Compliance Monitoring Event No. 4 Compliance Monitoring Period Start Date:
10/01/2022
Compliance Monitoring Period End Date:
12/31/2022
Do you have analytical results to report for this monitoring period? YES NO
Are you reporting maximum pollutant concentrations that are equivalent to the monthly average pollutant concentrations for this compliance monitoring event?
[For example, this will be the case if you only collected and analyzed one sample of sewage sludge or biosolids for this compliance monitoring period.]
YES NO
Maximum Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis or
Pass/Fail)
If No Data, Select One Of The
Following
Arsenic =27.1
Cadmium =0.834
Copper =992
Lead =8.81
Mercury =0.229
This section summarizes the maximum pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring period for
this SSUID. In accordance with 40 CFR 503.13(a) (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113), EPA's regulations prohibit
land application of bulk sewage sludge or sewage sludge sold or gave away sewage sludge in a bag or other container when one or more sewage sludge pollutant
concentrations in the sewage sludge exceed a land application ceiling pollutant limit (Table 1 of 40 CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?
node=pt40.32.503&rgn=div5#se40.32.503_113)). EPA will compare the pollutant concentrations in this section against the ceiling concentration limits in Table 1 of 40
CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113) to identify noncompliance events. All pollutant monitoring data
should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Please only select a "No Data Indicator Code" if you are reporting no data for the sampling period or particular parameter.
Page 9 of 20
Mercury =0.229
Molybdenum =14.9
Nickel =11.5
Selenium =6.31
Zinc =907
Pathogen And Vector Attraction Reduction
Sewage Sludge or Biosolids
Parameter
Vector Attraction Reduction Selected
Options
Value
Qualifier Value
If No Data, Select One Of The
Following
Solids, total volatile percent removal Option 1 - Volatile Solids Reduction =52
Note: Pathogenic organisms are disease-causing organisms. These include, but are not limited to, certain bacteria, protozoa, viruses, and viable helminth ova [see 40
CFR 503.31(f) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(f))]. The following units should be used for
pathogen data (see 40 CFR 503.32 (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.32)):
Density of fecal coliform in the sewage sludge shall be reported as Most Probable Number per gram of total solids (dry weight basis).
When using the Class B - Alternative 1 management option, the density of fecal coliform in the sewage sludge shall be reported as Most Probable
Number or Colony Forming Units per gram of total solids (dry weight basis) expressed as the geometric mean of the results of seven individual
samples of sewage sludge.
Density of Salmonella sp. bacteria in the sewage sludge shall be reported as Most Probable Number per four grams of total solids (dry weight basis).
Density of enteric viruses shall be reported as plaque-forming unit per four grams of total solids (dry weight basis).
Density of Helminth Ova. shall be reported as viable helminth ovum per four grams of total solids (dry weight basis).
Report the vector attraction reduction data for the biosolids or sewage sludge that was placed on an active sewage sludge unit during the compliance monitoring
period for this SSUID.
Note: Vector attraction is the characteristic of sewage sludge that attracts rodents, flies, mosquitos, or other organisms capable of transporting infectious agents [see
40 CFR 503.31(k) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(k))]. The following units should be used
for vector attraction reduction data (see 40 CFR 503.33) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.33):
Solids, total volatile, shall be reported as percent removal. See calculation procedures in "Environmental Regulations and Technology - Control of
Pathogens and Vector Attraction in Sewage Sludge" (https://www.epa.gov/biosolids/control-pathogens-and-vector-attraction-sewage-sludge), EPA-625/R-
92/013, 1992, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268) [see 40 CFR 503.33(b)(1) (https://www.ecfr.gov/current/title-40/chapter-
I/subchapter-O/part-503/subpart-D/section-503.33#p-503.33(b)(1))]. Volatile solids is the amount of the total solids in sewage sludge lost when the sewage
sludge is combusted at 550 degrees Celsius in the presence of excess air [see 40 CFR 503.31(l) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-
O/part-503/subpart-D/section-503.31#p-503.31(l))].
Specific Oxygen Update Rate (SOUR) shall be reported as milligrams of oxygen per hour per gram of total solids (dry weight basis) at a temperature of 20
degrees Celsius. SOUR is the mass of oxygen consumed per unit time per unit mass of total solids (dry weight basis) in the sewage sludge [see 40 CFR
503.31(h) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(h))].
Monthly Average Pollutant Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis or
Pass/Fail)
If No Data, Select One Of The
Following
Arsenic =27.1
Cadmium =0.834
Copper =992
Lead =8.81
Mercury =0.229
Molybdenum =14.9
Nickel =11.5
Selenium =6.31
Zinc =907
This section summarizes the monthly average pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring
period for this SSUID. All pollutant monitoring data should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Page 10 of 20
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)
If No Data, Select One Of The
Following
Total Nitrogen (TKN plus Nitrate-Nitrite)=8460
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)
If No Data, Select One Of The
Following
Total Phosphorus (as P)=42000
Report the average concentration (mg/kg, dry weight basis) of Total Nitrogen (TKN plus Nitrate-Nitrite, as N) and the average concentration (mg/kg, dry weight basis)
of Total Phosphorus (as P) in the sewage sludge or biosolids that was applied to land during the compliance monitoring period for this SSUID. The monitoring for Total
Phosphorus (as P) is optional.
ID: 002
Amount:664
Management Practice Detail:Distribution and Marketing - Compost
Bulk or Bag/Container:Bulk
Handler, Preparer, or Applier Type:On-Site Owner or Operator
Pathogen Class:Class A
Sewage Sludge or Biosolids Pathogen Reduction Options:
Class A-Alternative 1: Time/Temperature
Sewage Sludge or Biosolids Vector Attraction Reduction Options:
Option 5 - Aerobic Processing (Thermophilic Aerobic Digestion/Composting)
Did the facility land apply bulk sewage sludge when one or more pollutants in the sewage sludge exceeded 90 percent or more of any of the cumulative pollutant loading
rates in Table 2 of 40 CFR 503.13?
YES NO UNKNOWN
Monitoring Data
Compliance Monitoring Periods
INSTRUCTIONS: Pollutants, pathogen densities, and vector attraction reduction must be monitored when sewage sludge or biosolids are applied to the land. Please
use the following section to report monitoring data for the land application conducted by you or your facility in the reporting period for this SSUID. These monitoring
data should be representative of the sewage sludge or biosolids that was applied to land during the compliance monitoring period for this SSUID (40 CFR 503.8(a)
(http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_18)). All pollutant monitoring data should be reported in milligrams per kilogram
(mg/kg), dry weight basis. EPA will be using these data to demonstrate compliance with EPA's land application requirements (40 CFR 503, Subpart B).
INSTRUCTIONS: Please use the table below to identify the start date and end date for each compliance monitoring period. You can adjust the start and end dates as
needed. Please note that the compliance monitoring periods cannot overlap and that each compliance monitoring period must have a start date that is equal to or less
than the end date. The number of compliance monitoring periods is based on the number of metric tons (dry weight basis) of sewage sludge or biosolids land applied
in the reporting period (summed across all land application SSUIDs). For example, you will need to provide monitoring data for 12 compliance monitoring periods for
each land application SSUID when you land apply 15,000 or more metric tons (dry weight basis) of sewage sludge or biosolids (summed across all land application
SSUIDs) in the reporting period (see 40 CFR 503.16 (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_116)).
Compliance Monitoring Event No. 1 Compliance Monitoring Period Start Date:
01/01/2022
Compliance Monitoring Period End Date:
03/31/2022
Do you have analytical results to report for this monitoring period? YES NO
Page 11 of 20
Are you reporting maximum pollutant concentrations that are equivalent to the monthly average pollutant concentrations for this compliance monitoring event?
[For example, this will be the case if you only collected and analyzed one sample of sewage sludge or biosolids for this compliance monitoring period.]
YES NO
Maximum Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis or
Pass/Fail)
If No Data, Select One Of The
Following
Arsenic =9.4
Cadmium =0.3
Copper =434
Lead =8
Mercury =0.2
Molybdenum =5.4
Nickel =6.5
Selenium =3.9
Zinc =320
This section summarizes the maximum pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring period for
this SSUID. In accordance with 40 CFR 503.13(a) (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113), EPA's regulations prohibit
land application of bulk sewage sludge or sewage sludge sold or gave away sewage sludge in a bag or other container when one or more sewage sludge pollutant
concentrations in the sewage sludge exceed a land application ceiling pollutant limit (Table 1 of 40 CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?
node=pt40.32.503&rgn=div5#se40.32.503_113)). EPA will compare the pollutant concentrations in this section against the ceiling concentration limits in Table 1 of 40
CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113) to identify noncompliance events. All pollutant monitoring data
should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Please only select a "No Data Indicator Code" if you are reporting no data for the sampling period or particular parameter.
Pathogen And Vector Attraction Reduction
Sewage Sludge or Biosolids
Parameter
Pathogen Reduction Selected
Alternatives
Value
Qualifier Value If No Data, Select One Of The Following
Fecal Coliform Class A-Alternative 1: Time/Temperature F (No Sampling or Analysis Conducted - Other
Reason)
Salmonella Class A-Alternative 1: Time/Temperature <0.3
Report the pathogen densities in the sewage sludge or biosolids that was applied to land during the reporting year for this SSUID. Please report the maximum
pathogen density for Class A sewage sludge or biosolids. When using the Class B – Alternative 1 management option, please report the geometric mean of the
density of fecal coliform in Class B sewage sludge or biosolids [see 40 CFR 503.32(b)(2)].
Note: Pathogenic organisms are disease-causing organisms. These include, but are not limited to, certain bacteria, protozoa, viruses, and viable helminth ova [see 40
CFR 503.31(f) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(f))]. The following units should be used for
pathogen data (see 40 CFR 503.32 (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.32)):
Density of fecal coliform in the sewage sludge shall be reported as Most Probable Number per gram of total solids (dry weight basis).
When using the Class B - Alternative 1 management option, the density of fecal coliform in the sewage sludge shall be reported as Most Probable
Number or Colony Forming Units per gram of total solids (dry weight basis) expressed as the geometric mean of the results of seven individual
samples of sewage sludge.
Density of Salmonella sp. bacteria in the sewage sludge shall be reported as Most Probable Number per four grams of total solids (dry weight basis).
Density of enteric viruses shall be reported as plaque-forming unit per four grams of total solids (dry weight basis).
Density of Helminth Ova. shall be reported as viable helminth ovum per four grams of total solids (dry weight basis).
Monthly Average Pollutant Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis or
Pass/Fail)
If No Data, Select One Of The
Following
This section summarizes the monthly average pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring
period for this SSUID. All pollutant monitoring data should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Page 12 of 20
Arsenic =9.4
Cadmium =0.3
Copper =434
Lead =8
Mercury =0.2
Molybdenum =5.4
Nickel =6.5
Selenium =3.9
Zinc =320
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)
If No Data, Select One Of The
Following
Total Nitrogen (TKN plus Nitrate-Nitrite)=21700
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)
If No Data, Select One Of The
Following
Total Phosphorus (as P)=18800
Report the average concentration (mg/kg, dry weight basis) of Total Nitrogen (TKN plus Nitrate-Nitrite, as N) and the average concentration (mg/kg, dry weight basis)
of Total Phosphorus (as P) in the sewage sludge or biosolids that was applied to land during the compliance monitoring period for this SSUID. The monitoring for Total
Phosphorus (as P) is optional.
Compliance Monitoring Event No. 2 Compliance Monitoring Period Start Date:
04/01/2022
Compliance Monitoring Period End Date:
06/30/2022
Do you have analytical results to report for this monitoring period? YES NO
Maximum Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis
or Pass/Fail)If No Data, Select One Of The Following
Arsenic F (No Sampling or Analysis Conducted - Other
Reason)
Cadmium F (No Sampling or Analysis Conducted - Other
Reason)
Copper F (No Sampling or Analysis Conducted - Other
Reason)
Lead F (No Sampling or Analysis Conducted - Other
Reason)
Mercury F (No Sampling or Analysis Conducted - Other
Reason)
This section summarizes the maximum pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring period for
this SSUID. In accordance with 40 CFR 503.13(a) (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113), EPA's regulations prohibit
land application of bulk sewage sludge or sewage sludge sold or gave away sewage sludge in a bag or other container when one or more sewage sludge pollutant
concentrations in the sewage sludge exceed a land application ceiling pollutant limit (Table 1 of 40 CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?
node=pt40.32.503&rgn=div5#se40.32.503_113)). EPA will compare the pollutant concentrations in this section against the ceiling concentration limits in Table 1 of 40
CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113) to identify noncompliance events. All pollutant monitoring data
should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Please only select a "No Data Indicator Code" if you are reporting no data for the sampling period or particular parameter.
Page 13 of 20
Reason)
Molybdenum F (No Sampling or Analysis Conducted - Other
Reason)
Nickel F (No Sampling or Analysis Conducted - Other
Reason)
Selenium F (No Sampling or Analysis Conducted - Other
Reason)
Zinc F (No Sampling or Analysis Conducted - Other
Reason)
Pathogen And Vector Attraction Reduction
Sewage Sludge or Biosolids
Parameter
Pathogen Reduction Selected
Alternatives
Value
Qualifier Value If No Data, Select One Of The Following
Fecal Coliform Class A-Alternative 1: Time/Temperature F (No Sampling or Analysis Conducted - Other
Reason)
Salmonella Class A-Alternative 1: Time/Temperature F (No Sampling or Analysis Conducted - Other
Reason)
Report the pathogen densities in the sewage sludge or biosolids that was applied to land during the reporting year for this SSUID. Please report the maximum
pathogen density for Class A sewage sludge or biosolids. When using the Class B – Alternative 1 management option, please report the geometric mean of the
density of fecal coliform in Class B sewage sludge or biosolids [see 40 CFR 503.32(b)(2)].
Note: Pathogenic organisms are disease-causing organisms. These include, but are not limited to, certain bacteria, protozoa, viruses, and viable helminth ova [see 40
CFR 503.31(f) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(f))]. The following units should be used for
pathogen data (see 40 CFR 503.32 (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.32)):
Density of fecal coliform in the sewage sludge shall be reported as Most Probable Number per gram of total solids (dry weight basis).
When using the Class B - Alternative 1 management option, the density of fecal coliform in the sewage sludge shall be reported as Most Probable
Number or Colony Forming Units per gram of total solids (dry weight basis) expressed as the geometric mean of the results of seven individual
samples of sewage sludge.
Density of Salmonella sp. bacteria in the sewage sludge shall be reported as Most Probable Number per four grams of total solids (dry weight basis).
Density of enteric viruses shall be reported as plaque-forming unit per four grams of total solids (dry weight basis).
Density of Helminth Ova. shall be reported as viable helminth ovum per four grams of total solids (dry weight basis).
Monthly Average Pollutant Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis
or Pass/Fail)If No Data, Select One Of The Following
Arsenic F (No Sampling or Analysis Conducted - Other
Reason)
Cadmium F (No Sampling or Analysis Conducted - Other
Reason)
Copper F (No Sampling or Analysis Conducted - Other
Reason)
Lead F (No Sampling or Analysis Conducted - Other
Reason)
Mercury F (No Sampling or Analysis Conducted - Other
Reason)
Molybdenum F (No Sampling or Analysis Conducted - Other
Reason)
Nickel F (No Sampling or Analysis Conducted - Other
Reason)
Selenium F (No Sampling or Analysis Conducted - Other
Reason)
This section summarizes the monthly average pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring
period for this SSUID. All pollutant monitoring data should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Page 14 of 20
Reason)
Zinc F (No Sampling or Analysis Conducted - Other
Reason)
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)If No Data, Select One Of The Following
Total Nitrogen (TKN plus Nitrate-Nitrite)F (No Sampling or Analysis Conducted - Other
Reason)
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)If No Data, Select One Of The Following
Total Phosphorus (as P)F (No Sampling or Analysis Conducted - Other
Reason)
Report the average concentration (mg/kg, dry weight basis) of Total Nitrogen (TKN plus Nitrate-Nitrite, as N) and the average concentration (mg/kg, dry weight basis)
of Total Phosphorus (as P) in the sewage sludge or biosolids that was applied to land during the compliance monitoring period for this SSUID. The monitoring for Total
Phosphorus (as P) is optional.
Compliance Monitoring Event No. 3 Compliance Monitoring Period Start Date:
07/01/2022
Compliance Monitoring Period End Date:
09/30/2022
Do you have analytical results to report for this monitoring period? YES NO
Maximum Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis
or Pass/Fail)If No Data, Select One Of The Following
Arsenic F (No Sampling or Analysis Conducted - Other
Reason)
Cadmium F (No Sampling or Analysis Conducted - Other
Reason)
Copper F (No Sampling or Analysis Conducted - Other
Reason)
Lead F (No Sampling or Analysis Conducted - Other
Reason)
Mercury F (No Sampling or Analysis Conducted - Other
Reason)
Molybdenum F (No Sampling or Analysis Conducted - Other
Reason)
Nickel F (No Sampling or Analysis Conducted - Other
Reason)
Selenium F (No Sampling or Analysis Conducted - Other
Reason)
Zinc F (No Sampling or Analysis Conducted - Other
Reason)
This section summarizes the maximum pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring period for
this SSUID. In accordance with 40 CFR 503.13(a) (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113), EPA's regulations prohibit
land application of bulk sewage sludge or sewage sludge sold or gave away sewage sludge in a bag or other container when one or more sewage sludge pollutant
concentrations in the sewage sludge exceed a land application ceiling pollutant limit (Table 1 of 40 CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?
node=pt40.32.503&rgn=div5#se40.32.503_113)). EPA will compare the pollutant concentrations in this section against the ceiling concentration limits in Table 1 of 40
CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113) to identify noncompliance events. All pollutant monitoring data
should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Please only select a "No Data Indicator Code" if you are reporting no data for the sampling period or particular parameter.
Page 15 of 20
Reason)
Pathogen And Vector Attraction Reduction
Sewage Sludge or Biosolids
Parameter
Pathogen Reduction Selected
Alternatives
Value
Qualifier Value If No Data, Select One Of The Following
Fecal Coliform Class A-Alternative 1: Time/Temperature F (No Sampling or Analysis Conducted - Other
Reason)
Salmonella Class A-Alternative 1: Time/Temperature F (No Sampling or Analysis Conducted - Other
Reason)
Report the pathogen densities in the sewage sludge or biosolids that was applied to land during the reporting year for this SSUID. Please report the maximum
pathogen density for Class A sewage sludge or biosolids. When using the Class B – Alternative 1 management option, please report the geometric mean of the
density of fecal coliform in Class B sewage sludge or biosolids [see 40 CFR 503.32(b)(2)].
Note: Pathogenic organisms are disease-causing organisms. These include, but are not limited to, certain bacteria, protozoa, viruses, and viable helminth ova [see 40
CFR 503.31(f) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(f))]. The following units should be used for
pathogen data (see 40 CFR 503.32 (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.32)):
Density of fecal coliform in the sewage sludge shall be reported as Most Probable Number per gram of total solids (dry weight basis).
When using the Class B - Alternative 1 management option, the density of fecal coliform in the sewage sludge shall be reported as Most Probable
Number or Colony Forming Units per gram of total solids (dry weight basis) expressed as the geometric mean of the results of seven individual
samples of sewage sludge.
Density of Salmonella sp. bacteria in the sewage sludge shall be reported as Most Probable Number per four grams of total solids (dry weight basis).
Density of enteric viruses shall be reported as plaque-forming unit per four grams of total solids (dry weight basis).
Density of Helminth Ova. shall be reported as viable helminth ovum per four grams of total solids (dry weight basis).
Monthly Average Pollutant Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis
or Pass/Fail)If No Data, Select One Of The Following
Arsenic F (No Sampling or Analysis Conducted - Other
Reason)
Cadmium F (No Sampling or Analysis Conducted - Other
Reason)
Copper F (No Sampling or Analysis Conducted - Other
Reason)
Lead F (No Sampling or Analysis Conducted - Other
Reason)
Mercury F (No Sampling or Analysis Conducted - Other
Reason)
Molybdenum F (No Sampling or Analysis Conducted - Other
Reason)
Nickel F (No Sampling or Analysis Conducted - Other
Reason)
Selenium F (No Sampling or Analysis Conducted - Other
Reason)
Zinc F (No Sampling or Analysis Conducted - Other
Reason)
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)If No Data, Select One Of The Following
Total Nitrogen (TKN plus Nitrate-Nitrite)F (No Sampling or Analysis Conducted - Other
This section summarizes the monthly average pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring
period for this SSUID. All pollutant monitoring data should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Report the average concentration (mg/kg, dry weight basis) of Total Nitrogen (TKN plus Nitrate-Nitrite, as N) and the average concentration (mg/kg, dry weight basis)
of Total Phosphorus (as P) in the sewage sludge or biosolids that was applied to land during the compliance monitoring period for this SSUID. The monitoring for Total
Phosphorus (as P) is optional.
Page 16 of 20
Total Nitrogen (TKN plus Nitrate-Nitrite)F (No Sampling or Analysis Conducted - Other
Reason)
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)If No Data, Select One Of The Following
Total Phosphorus (as P)F (No Sampling or Analysis Conducted - Other
Reason)
Compliance Monitoring Event No. 4 Compliance Monitoring Period Start Date:
10/01/2022
Compliance Monitoring Period End Date:
12/31/2022
Do you have analytical results to report for this monitoring period? YES NO
Maximum Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis
or Pass/Fail)If No Data, Select One Of The Following
Arsenic F (No Sampling or Analysis Conducted - Other
Reason)
Cadmium F (No Sampling or Analysis Conducted - Other
Reason)
Copper F (No Sampling or Analysis Conducted - Other
Reason)
Lead F (No Sampling or Analysis Conducted - Other
Reason)
Mercury F (No Sampling or Analysis Conducted - Other
Reason)
Molybdenum F (No Sampling or Analysis Conducted - Other
Reason)
Nickel F (No Sampling or Analysis Conducted - Other
Reason)
Selenium F (No Sampling or Analysis Conducted - Other
Reason)
Zinc F (No Sampling or Analysis Conducted - Other
Reason)
This section summarizes the maximum pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring period for
this SSUID. In accordance with 40 CFR 503.13(a) (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113), EPA's regulations prohibit
land application of bulk sewage sludge or sewage sludge sold or gave away sewage sludge in a bag or other container when one or more sewage sludge pollutant
concentrations in the sewage sludge exceed a land application ceiling pollutant limit (Table 1 of 40 CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?
node=pt40.32.503&rgn=div5#se40.32.503_113)). EPA will compare the pollutant concentrations in this section against the ceiling concentration limits in Table 1 of 40
CFR 503.13 (http://www.ecfr.gov/cgi-bin/text-idx?node=pt40.32.503&rgn=div5#se40.32.503_113) to identify noncompliance events. All pollutant monitoring data
should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Please only select a "No Data Indicator Code" if you are reporting no data for the sampling period or particular parameter.
Pathogen And Vector Attraction Reduction
Sewage Sludge or Biosolids
Parameter
Pathogen Reduction Selected
Alternatives Value
Qualifier Value If No Data, Select One Of The Following
Fecal Coliform Class A-Alternative 1: Time/Temperature F (No Sampling or Analysis Conducted - Other
Reason)
Report the pathogen densities in the sewage sludge or biosolids that was applied to land during the reporting year for this SSUID. Please report the maximum
pathogen density for Class A sewage sludge or biosolids. When using the Class B – Alternative 1 management option, please report the geometric mean of the
density of fecal coliform in Class B sewage sludge or biosolids [see 40 CFR 503.32(b)(2)].
Page 17 of 20
Reason)
Salmonella Class A-Alternative 1: Time/Temperature F (No Sampling or Analysis Conducted - Other
Reason)
Note: Pathogenic organisms are disease-causing organisms. These include, but are not limited to, certain bacteria, protozoa, viruses, and viable helminth ova [see 40
CFR 503.31(f) (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.31#p-503.31(f))]. The following units should be used for
pathogen data (see 40 CFR 503.32 (https://www.ecfr.gov/current/title-40/chapter-I/subchapter-O/part-503/subpart-D/section-503.32)):
Density of fecal coliform in the sewage sludge shall be reported as Most Probable Number per gram of total solids (dry weight basis).
When using the Class B - Alternative 1 management option, the density of fecal coliform in the sewage sludge shall be reported as Most Probable
Number or Colony Forming Units per gram of total solids (dry weight basis) expressed as the geometric mean of the results of seven individual
samples of sewage sludge.
Density of Salmonella sp. bacteria in the sewage sludge shall be reported as Most Probable Number per four grams of total solids (dry weight basis).
Density of enteric viruses shall be reported as plaque-forming unit per four grams of total solids (dry weight basis).
Density of Helminth Ova. shall be reported as viable helminth ovum per four grams of total solids (dry weight basis).
Monthly Average Pollutant Concentration Data for All Sewage Sludge or Biosolids Applied to Land
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight basis
or Pass/Fail)If No Data, Select One Of The Following
Arsenic F (No Sampling or Analysis Conducted - Other
Reason)
Cadmium F (No Sampling or Analysis Conducted - Other
Reason)
Copper F (No Sampling or Analysis Conducted - Other
Reason)
Lead F (No Sampling or Analysis Conducted - Other
Reason)
Mercury F (No Sampling or Analysis Conducted - Other
Reason)
Molybdenum F (No Sampling or Analysis Conducted - Other
Reason)
Nickel F (No Sampling or Analysis Conducted - Other
Reason)
Selenium F (No Sampling or Analysis Conducted - Other
Reason)
Zinc F (No Sampling or Analysis Conducted - Other
Reason)
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)If No Data, Select One Of The Following
Total Nitrogen (TKN plus Nitrate-Nitrite)F (No Sampling or Analysis Conducted - Other
Reason)
Sewage Sludge or Biosolids
Parameter
Value
Qualifier
Parameter Concentration (mg/kg, dry-weight
basis)If No Data, Select One Of The Following
Total Phosphorus (as P)F (No Sampling or Analysis Conducted - Other
Reason)
This section summarizes the monthly average pollutant concentrations in the biosolids or sewage sludge that was applied to land during the compliance monitoring
period for this SSUID. All pollutant monitoring data should be reported in milligrams per kilogram (mg/kg), dry weight basis.
Report the average concentration (mg/kg, dry weight basis) of Total Nitrogen (TKN plus Nitrate-Nitrite, as N) and the average concentration (mg/kg, dry weight basis)
of Total Phosphorus (as P) in the sewage sludge or biosolids that was applied to land during the compliance monitoring period for this SSUID. The monitoring for Total
Phosphorus (as P) is optional.
Page 18 of 20
Sludge Management - Surface Disposal
Sludge Management - Incineration
Sludge Management - Other Management Practice
ID: 003
Amount:566
Management Practice Detail:Disposal in a Municipal Landfill (under 40 CFR 258)
Handler, Preparer, or Applier Type:On-Site Owner or Operator
Pathogen Class:Not Applicable
Do you have any deficiencies to report for this SSUID? YES NO UNKNOWN
Monitoring Data
Compliance Monitoring Periods
Compliance Monitoring Event No. 1 Compliance Monitoring Period Start Date:
01/01/2022
Compliance Monitoring Period End Date:
03/31/2022
Do you have analytical results to report for this monitoring period? YES NO
Sewage Sludge or Biosolids Parameter Parameter Concentration (Pass or Fail)If No Data, Select One Of The Following
TCLP F (No Sampling or Analysis Conducted - Other Reason)
PFT F (No Sampling or Analysis Conducted - Other Reason)
Compliance Monitoring Event No. 2 Compliance Monitoring Period Start Date:
04/01/2022
Compliance Monitoring Period End Date:
06/30/2022
Do you have analytical results to report for this monitoring period? YES NO
Sewage Sludge or Biosolids Parameter Parameter Concentration (Pass or Fail)If No Data, Select One Of The Following
TCLP F (No Sampling or Analysis Conducted - Other Reason)
PFT F (No Sampling or Analysis Conducted - Other Reason)
Page 19 of 20
Additional Information
Certification Information
Compliance Monitoring Event No. 3 Compliance Monitoring Period Start Date:
07/01/2022
Compliance Monitoring Period End Date:
09/30/2022
Do you have analytical results to report for this monitoring period? YES NO
Sewage Sludge or Biosolids Parameter Parameter Concentration (Pass or Fail)If No Data, Select One Of The Following
TCLP F (No Sampling or Analysis Conducted - Other Reason)
PFT F (No Sampling or Analysis Conducted - Other Reason)
Compliance Monitoring Event No. 4 Compliance Monitoring Period Start Date:
10/01/2022
Compliance Monitoring Period End Date:
12/31/2022
Do you have analytical results to report for this monitoring period? YES NO
Sewage Sludge or Biosolids Parameter Parameter Concentration (Pass or Fail)If No Data, Select One Of The Following
TCLP Pass
PFT F (No Sampling or Analysis Conducted - Other Reason)
Please enter any additional information that you would like to provide in the comment box below.
Six samples were taken for the compost production. The max value from the metal concentrations was
provided.
Additional Attachments
Please attach site maps and agronomic rate calculations for all of the biosolids or sewage sludge that were land applied during the reporting period.
Name Created Date Size
Full Set Land App.pdf 02/15/2023 5:22 PM 2.72 MB
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible
for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information
submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment
for knowing violations. Signing an electronic document on behalf of another person is subject to criminal, civil, administrative, or other lawful action.
Certified By: Jill Jones ([e-mail])
Certified On: 02/15/2023 5:24 PM
Page 20 of 20
Total Loads 148
Zone Number 11 Load Analysis
6.14 Acres Load Volume 1800 gal fertilizer required 1749.9 lbs
Fertilizer Required per Acre 400 lbs/acre Weight per gallon 8.35 lbs. nitrogen per load 11.9 lbs
(Based on Cropping Values) Specific Gravity 1.025
(for orchard grass and alfalfa mix)Weight per Load 15406 lbs Total Loads ‐ Calc 148
Total Fertilizer Required 2456 lbs NH4‐N Concentration 697 ppm
Fertilizer Available in Soil 23 ppm NO3‐N Volatilization Factor ‐ Kv 50% Application Acres 6.14
Total NO3‐N Available in Soil 706.1 lbs Fertilizer Value per Load 5.4 lbs Loads Per Acre 24
(Five times the NO3‐N in Soil)Organic Nitrogen Concentration 2106.3 ppm  Percent Solids 7.0%
Net Fertilizer Required for Zone 1749.9 lbs      (TKN‐NH4‐N) Solids Per Load 1078 lbs
Mineralization Rate 20% Application Rate 13.0 tons/acre
Date
TKN 
(organic 
nitrogen)
NO3‐N 
Nitraite+Nitrit
e as N
NH3‐N 
Ammoni
a as N Organic ‐ N per Load 6.5 lbs Metric Rate 29.1 MT/Ha
7/15/2021 2,290 0.0 721 NO3 Concentration 0.0 ppm
1/15/2021 2820 0.0 662 NO3‐N per Load 0.0 lbs
10/25/2021 3300 0.0 708 Total Available Nitrogen per Load 11.9 lbs Total Loads Applied 138
Total 8410 0.0 2091 Loads Per Acre 22.5
Average 2803.3 0.0 697.00 Application Rate 12.1 tons/acre
Percent Solids: TKN ‐ NH3‐N=organic N ppm Metric Rate 27.2 MT/Ha
7.00%
Date Application Began:
Date Application Ended:
*Note‐ all Nitrate+Nitite values were non‐detect tested by Chemtech Ford, a value of 1 will be used for the purpose of this spread sheet
11/19/2021
1/29/2022
Application Analysis for Zone 11
Total Available Nitrogen ‐ Anaerobic Biosolids
Whole Sludge Application Rate Analysis ‐ Calculated
Anaerobic Sample ‐ in ppm
Whole Sludge Application Rate Analysis ‐ Actual
2106.3
Total Loads 180
Zone Number 7 Load Analysis
4.4 Acres Load Volume 1300 gal fertilizer required 1540 lbs
Fertilizer Required per Acre 400 lbs/acre Weight per gallon 8.35 lbs. nitrogen per load 8.6 lbs
(Based on Cropping Values) Specific Gravity 1.025
(for orchard grass and alfalfa mix)Weight per Load 11126 lbs Total Loads ‐ Calc 180
Total Fertilizer Required 1760 lbs NH4‐N Concentration 697 ppm
Fertilizer Available in Soil 10 ppm NO3‐N Volatilization Factor ‐ Kv 50% Application Acres 4.4
Total NO3‐N Available in Soil 220 lbs Fertilizer Value per Load 3.9 lbs Loads Per Acre 41
(Five times the NO3‐N in Soil)Organic Nitrogen Concentration 2106.3 ppm  Percent Solids 6.0%
Net Fertilizer Required for Zone 1540 lbs      (TKN‐NH4‐N) Solids Per Load 668 lbs
Mineralization Rate 20% Application Rate 13.6 tons/acre
Date
TKN 
(organic 
nitrogen)
NO3‐N 
Nitraite+Nitrit
e as N
NH3‐N 
Ammoni
a as N Organic ‐ N per Load 4.7 lbs Metric Rate 30.6 MT/Ha
7/15/2021 2,290 0.0 721 NO3 Concentration 0.0 ppm
1/15/2021 2820 0 662 NO3‐N per Load 0.0 lbs
10/25/2021 3300 0 708 Total Available Nitrogen per Load 8.6 lbs Total Loads Applied 172
Total 8410 0 2091 Loads Per Acre 39.1
Average 2803.3 0.0 697.00 Application Rate 13.0 tons/acre
Percent Solids: TKN ‐ NH3‐N=organic N ppm Metric Rate 29.3 MT/Ha
6.00%
Date Application Began:
Date Application Ended:
12/31/2022
6/24/2022
Application Analysis for Zone 7
Total Available Nitrogen ‐ Anaerobic Biosolids
Whole Sludge Application Rate Analysis ‐ Calculated
Anaerobic Sample ‐ in ppm
Whole Sludge Application Rate Analysis ‐ Actual
2106.3
Total Loads 278
Zone Number 13 Load Analysis
Acres in Zone 12.7 Acres Load Volume 1300 gal fertilizer required 4445 lbs
Fertilizer Required per Acre 400 lbs/acre Weight per gallon 8.35 lbs. nitrogen per load 16.0 lbs
(Based on Cropping Values) Specific Gravity 1.025
(for orchard grass and alfalfa mix)Weight per Load 11126 lbs Total Loads ‐ Calc 278
Total Fertilizer Required 5080 lbs NH4‐N Concentration 581 ppm
Fertilizer Available in Soil 10 ppm NO3‐N Volatilization Factor ‐ Kv 50% Application Acres 12.7
Total NO3‐N Available in Soil 635 lbs Fertilizer Value per Load 3.2 lbs Loads Per Acre 22
(Five times the NO3‐N in Soil)Organic Nitrogen Concentration 5719.7 ppm  Percent Solids 13.0%
Net Fertilizer Required for Zone 4445 lbs      (TKN‐NH4‐N) Solids Per Load 1450 lbs
Mineralization Rate 20% Application Rate 15.9 tons/acre
Date
TKN 
(organic 
nitrogen)
NO3‐N 
Nitraite+Nitrit
e as N
NH3‐N 
Ammoni
a as N Organic ‐ N per Load 12.7 lbs Metric Rate 35.6 MT/Ha
1/31/2022 3,850 0 646 NO3 Concentration 0.6 ppm
4/22/2022 7800 0 410 NO3‐N per Load 0.0 lbs
7/15/2022 7253 1.9 688 Total Available Nitrogen per Load 16.0 lbs Total Loads Applied 169
Total 18903 1.9 1744 Loads Per Acre 13.3
Average 6301.0 0.6 581.33 Application Rate 9.6 tons/acre
Percent Solids: TKN ‐ NH3‐N=organic N ppm Metric Rate 21.6 MT/Ha
13%
Date Application Began:
Date Application Ended:
10/10/2022
present
Application Analysis for Zone 13
Total Available Nitrogen ‐ Anaerobic Biosolids
Whole Sludge Application Rate Analysis ‐ Calculated
Anaerobic Sample ‐ in ppm
Whole Sludge Application Rate Analysis ‐ Actual
5719.7
2022 Soil Sampling
QA Consulting and Testing, LLC
PO Box 627
Salem, Utah 84653
801-423-1116
Name: Von Isaman
Date: November 14, 2022
AB-DTPA Chromotropic
Extract Acid
Method Method
Customer Sample ID ppm P ppm NO3-N
Composite D 0/1 56.00 11.00
Composite D 1/2 29.00 4.00
Composite D 2/3 4.00 3.00
Composite D 3/4 6.00 3.00
Composite D 4/5 5.00 4.00
Composite Surface Sample 58.00 21.00
CDSD - 2022 Composite Deep Soil Sampling- to Confining Layer
Nitrates
Phosphorus 
0
1
2
3
4
5
6
7
8
9
10
12345
0
10
20
30
40
50
60
12345
C:\Users\Owner\OneDrive\BIOSOLIDS Files\Biosolids ‐ Consolidated Data\Biosolids Report ‐ Calendar Year 2022\9. Land Application 
Records\QA Consulting and Testing Graphs 2022
 4:25 PM 11/18/2022
Zone 613.48
Zone 77.02
Zone 919.99
Zone 54.34
Zone 116.75
Z
o
n
e

1
3
1
2
.
7
0
Z
o
n
e

1
2
7.
1
8
Zone 13.11
Zone 34.15
Zone 1010.75
Zone 813.02
Zone 411.64Zone 23.12
Land Application Zones
Created 2022 Samples Taken October 31, 2022

(This Page Intentionally Left Blank)

PERMIT: UT-0020974
Biosolids Annual Report
2022
Facility Owner: Central Davis Sewer District
Owner Status: Political Subdivision of the State of Utah

Contact Person: Jill S. Jones
Telephone Number: [phone] Mailing Address: 2200 South Sunset Drive Kaysville, Utah 84037 Treatment Plant Address: Same
Land Application Site: Latitude - 40 degrees 59 minutes 55 seconds
Longitude - 111 degrees 56 minutes 49 secs.
The Northwest quarter corner of Section 15 of Township 3 North, Range 1 West of the Salt Lake Base and Meridian. Land Application Site: The land application site used by the District
surrounds the wastewater treatment plant and is owned by the District.

Indian Land Status: All sites associated with the general reuse
of biosolids are not located on Indian Lands.

Landfill Site: Republic Services - Wasatch Regional Landfill located at 8883 North, Rowley Rd, North Skull Valley, UT 84029. Permits: UPDES Permit No: UT-0020974

(This Page Intentionally Left Blank)
Central Davis Sewer District
Permit#: UT-002097 4
Certification Statement for
Pathogens, VAR, Management Practices, Site
Restrictions and Chemical Pollutant Limits
I certify under the penalty of law, that the heavy metal requirements, the pathogen
requirements and the vector attraction reduction requirements found in Part 111.B, the
Management Practices in Part 111.C and the Special Conditions in 111.D have been met
during 2020 for biosolids land applied or sold for soil amendment. This determination
has been made under my direction and supervision in accordance with a system
designed to ensure that qualified personnel properly gather and evaluate
information used to determine that the pathogen reduction requirements, the
vector attraction reduction requirements, the management practices, and the site
restrictions have been met. I am aware that there are significant penalties for false
certification including fine and/or imprisonment.
�JonYs
District Manager

(This Page Intentionally Left Blank)
1
Central Davis Sewer District
Annual Biosolids Report 2022

Central Davis Sewer District is providing the included information in fulfillment of the
annual report requirement contained in permit UT-0020974. The report is divided
according to the EPA requirements found in 40 CFR Part 503.

Chemical Pollutant Analysis
During 2022, Central Davis Sewer District tracked the chemical quality of biosolids
produced by its wastewater treatment plant according to the method of treatment. Since
each treatment method is tracked separately, the results are reported individually below.

Anaerobic Digested Biosolids
Metals analysis stipulated in 40 CFR Part 503 was performed quarterly by Central
Davis Sewer District on anaerobic digested biosolids. Quarterly results, lab reports
and quality control charts have been calculated and are included in a separate
section. The summaries of the results are presented below:

(All values presented are in mg/KG on a dry weight basis)
Metal Annual Average Limit
Aluminum 60,750 None Arsenic 27 41
Cadmium 1 39 Chromium 21 None Copper 944 1,500 Lead 9 300 Mercury 0.3 17
Molybdenum 13 75 Nickel 11 420 Phosphorous 34,775 None
Selenium 8 100 Silver 1 None
Zinc 831 2,800
As can be seen, all results are within the acceptance limits.
2

Compost Biosolids
Compost is sampled when the pile is ready for distribution and marketing. In 2022,
six samples were taken and analyzed. The yearly average is shown below. A
summary report, lab reports and quality charts are included in a separate section.

(All values presented are in mg/KG on a dry weight basis)
Metal Averages Limits
Aluminum 9,367 None
Arsenic 7.4 41
Cadmium 0.2 39
Chromium 7.2 None
Copper 363 1,500
Lead 6.0 300
Mercury 0.1 17
Molybdenum 4.0 75
Nickel 5.1 420
Phosphorus 13,852 None
Selenium 3.1 100
Silver 0.5 None
Zinc 276 2,800

As can be seen, all results are within the acceptance limits.

Biosolids Pathogen Reduction
During 2022, Central Davis Sewer District met the permit and regulatory requirement for
pathogen reduction in two separate ways. The two methods are discussed below. Since
one method produces Class B pathogen reduction, a discussion of the site restrictions is
presented at the end of this section.

Anaerobic Digestion
Anaerobic digestion stipulates both time and temperature requirements be met
while the biosolids are in the digester. The permit requires that the temperature
remain above 35o C for at least 15 days. During 2022, the digester monthly
average temperatures remained above 35o C for the entire year. A history of the
3
digester temperatures is given in this report. Calculation sheets determining the
duration biosolids remained in the digester are also included. The shortest duration
for biosolids remaining in the primary digesters was 24.8 days.

Composting Class A – Aerated Static Pile (ASP)
ASP composting requirements stipulate that Class A compost produced under the
windrow method remain above 55o C. for 3 days or longer. At the end of the
compost period, the compost must have less than either 1000 MPN/gram fecal
coliforms or 3 MPN/4 grams for Salmonella. For composting, the District takes
two or more weeks building a pile. At the end of the pile-building period the pile is
generally large enough to maintain temperature and moisture. After one-week,
active composting begins, and temperatures are recorded. All piles are capped
with finished compost to maintain temperatures and to reduce odors. Each pile is
then monitored for 15 days or longer and daily temperatures are recorded. Copies
of the composting log sheets are included. During 2022, all ASP compost complied
with the regulatory requirements.

Composting Class B
No Class B compost was produced in 2022.

Site Restrictions
The land on which biosolids are applied is owned by the District and is used to
produce feed crops and turf grass. Harvesting of all feed crops occurs at least 30
days after the application of the last load of biosolids. Turf grass is not harvested
until at least one year after application. In 2022 no turf grass was harvested
although there are two fields with aged turf grass available. This land is farmed
and separated from the public and is considered to have a low potential for public
contact. The entire site is fenced with security fencing and warning signs are
posted to inform the public that the area is a designated biosolids application site.
The District has very few problems with unauthorized entry to the site.

4
Vector Attraction Reduction Requirement
Central Davis Sewer District evaluates VAR methods separately for the two biosolids
production streams which operate at the plant. These two production streams are
Trickling Filter - Anaerobic Digested Biosolids and Oxidation Ditch - Composted Biosolids.

Trickling Filter - Anaerobic Biosolids
The District meets the VAR requirements for biosolids produced through anaerobic
digestion by complying with the 38% or greater volatile solids reduction. All
quarters exceeded the 38% requirement, and the annual average volatile solids
reduction was 55%.

Oxidation Ditch - Compost
The composting process VAR requirements are met by the biosolids being in an
aerobic process for at least 14 days and during that time the compost maintains a
temperature above 40oC with the average temperature being above 45oC. This
requirement was met for all piles and documentation of the temperatures can be
found on the log sheets included in the pathogen reduction section. Final curing
for the compost lasts anywhere from 45 days to 120 days depending on moisture
reduction and when screening takes place.

Landfilling of Biosolids
At the beginning of 2015, the District lost one of its major wood waste suppliers. This
loss of wood waste forced the District to rely on green waste to continue composting.
Composting with green waste is viable during the spring, summer and fall but presented
problems in the winter since green waste compost has a higher odor potential. The loss
of wood waste has allowed the District to see if there are still odors when no active
compost piles remain. The District did not receive any odor complaints about the
biosolids when landfilling during 2022. There is a significant cost increase with
landfilling, approximately $210,727 in tipping fees alone, but the lack of complaints is
viewed as a major benefit. In addition, this is the first year where the District has signed
a 3-year contract with the landfill and due to the contract, the District is obligated to take
5
a steady amount of biosolids to the landfill which will in return has produce significantly
less compost this year.

Biosolids Production Rates
Central Davis Sewer District produced composted, anaerobic digested and landfilled
biosolids. The District maintained separate records for production of each type. The 2022
quantities are presented separately below.

Anaerobic Digested Biosolids Production
During 2022, the District tracked the number of loads of anaerobic biosolids
applied to agricultural land and composted. A total of 374 loads were applied at an
average of about 14.4% solids. This represents 298 English tons or 271 metric
tons of dry biosolids. While this represents about one-third of the wastewater flows
it only represents about 25% of the biosolids production. This is most likely due to
additional volatile solids destruction in the digesters.

Oxidation Ditch Biosolids Production
In 2022, the District also tracked the weight of aerobic biosolids incorporated into
compost. 450 Mixer truckloads of 414,408 lbs. were hauled to the composting area
at an average of 18.6% solids. This represents a total of 207 English tons or 188
metric tons of dry biosolids, sent to composting.

Trickling Filter Biosolids Production
In 2022, the District also tracked the weight of anaerobic biosolids incorporated
into compost. 450 Mixer truckloads of 138,528 lbs. were hauled to the composting
area at an average of 14.4% solids. This represents a total of 69 English tons or
63 metric tons of dry biosolids, sent to composting.

Final Compost Production
664 metric tons of 2021 compost was sold in 2022. A total of 1725 metric tons of
compost were produced in 2022. All the 2022 compost remains to be screened
6
and/or marketed. A small amount of 2021 biosolids remains, also to be marketed.

Land Filled Production
The District hauled 3685 wet English tons of biosolids to the Wasatch Regional
Landfill. This represents 623 English tons or 566 metric tons of dry biosolids that
were landfilled.

Total Biosolids Production
Biosolids or biosolids derived material produced in 2022 were 2,562 Metric tons.
Of this total, 566 metric tons were landfilled, and the remainder was or will be
beneficially reused on the District’s farm or sold as compost to the general public.

Application Zones
Records for land application to fields or zones are included in this report. The report
only includes information on zones where land application took place in 2022. Zone 13
has about 55 percent of the allowed loads applied, and this zone will continue to be
applied to in 2023.

Anaerobic Biosolids
Chemical Quality 1.2022 Testing Summary2.Historical Testing Summary3.Quality Control Charts4.Laboratory Reports
CDSD Anaerobic Biosolids Chemical Quality - 2022
Aluminum Arsenic Cadmium Chromium Copper Lead Mercury Molyb Nickel Phosphorus Selenium Silver Zinc
Date Type ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm
1/31/20022 AN 44,000 20.5 0.32 17.1 802 9.11 0.2 11.4 9.26 28,200 5.6 1.23 682
4/22/2022 AN 61,200 29 0.168 24.4 1020 8.19 0.24 12.6 9.07 32,600 9.33 0.929 809
7/15/2022 AN 71,800 32.9 0.899 24.5 963 7.89 0.38 14.4 14.7 36,300 8.84 1.95 926
10/4/2022 AN 66,000 27.1 0.834 16.4 992 8.81 0.229 14.9 11.5 42,000 6.31 1.73 907
Minimum 44,000 21 0 16 802 8 0.2 11 9 28,200 6 1 682
Average 60,750 27 1 21 944 9 0.3 13 11 34,775 8 1 831
Maximum 71,800 33 1 25 1,020 9 0.4 15 15 42,000 9 2 926
TKN
Ammonia
as N
Nitrate+N
itrite-
Total
Total
Solids
Date ppm ppm ppm ppm
1/31/20022 3,850 646 3.98 6.3
4/22/2022 7,800 489 6.20 17.4
7/15/2022 7,240 667 0.25 15.4
10/4/2022 8,460 537 0.3 16.4
Minimum 3,850 489 0.25 6
Average 6,838 585 2.7 14
Maximum 8,460 667 6.2 17
Total Year Values
*Notes: All ND values are taken as 0.25*MDL and shown as blue
C:\Users\Owner\OneDrive\BIOSOLIDS Files\Biosolids - Consolidated Data\Biosolids Report - Calendar Year 2022\4. Anaerobic Biosolids Chemical Quality\Anaerobic Biosolids Metals
Summary 2022
11/14/2022
Central Davis Sewer District
Anaerobic Biosolids - Historic Table
Aluminum Arsenic Cadmium Chromium Copper Lead Mercury Molyb Nickel Phosphorus Selenium Silver Zinc ppm
Date Type ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm
11/7/1988 AN 1.8 1.8 38.2 372.7 35.2 3.1 23.5 557
12/8/1988 AN ** 2.5 16.4 237.7 24.6 1.7 13.1 341
12/22/1988 AN 3.9 2.3 22.7 175.1 18.2 0.9 15.9 271
1/9/1989 AN 3.1 2.2 19.3 235.1 22.8 0.9 15.8 581
2/10/1989 AN ** 2.0 21.9 260.1 32.2 4.9 11.1 430
3/5/1989 AN ** 2.6 19.4 248.0 31.3 10.3 10.8 374
4/14/1989 AN ** 2.0 17.9 260.9 37.3 3.1 10.2 412
4/24/1989 AN ** 2.2 21.9 320.2 35.4 4.6 11.8 490
5/29/1989 AN ** 2.4 20.8 346.8 ** 4.0 13.5 574
7/8/1989 AN 8.8 2.1 25.9 325.8 62.3 2.4 18.5 486
8/7/1989 AN 4.0 2.0 27.6 394.4 60.0 3.4 18.1 525
8/25/1989 AN 2.6 2.4 23.5 361.9 47.9 3.6 9.9 528
3/5/1990 AN ** 1.8 22.1 306.0 34.9 1.9 8.5 401
4/2/1990 AN ** 1.8 31.9 359.4 38.0 3.1 9.9 469
5/31/1990 AN 3.7 2.4 19.7 337.3 41.3 2.7 11.8 485
8/30/1990 AN 4.9 3.0 21.0 388.0 35.0 3.2 17.0 594
3/13/1991 AN 1.7 34.4 277.4 34.4 ** ** 456
8/8/1991 AN 18.3 3.1 20.0 399.5 38.6 3.5 18.6 654
9/9/1991 AN 7.6 2.0 23.3 400.0 30.2 ** 13.8 600
1/23/1992 AN 4.0 2.3 15.0 333.6 31.3 ** 13.4 541
2/24/1992 AN 2.1 2.0 16.2 368.6 ** ** 22.6 468
3/1/1992 AN 2.3 1.1 7.7 318.0 ** ** 13.0
3/27/1992 A 1.7 2.1 9.9 215.0 19.2 ** 12.8 255
4/16/1992 AN 3.1 1.0 11.0 394.0 ** ** ** 608
5/22/1992 A ** 1.2 9.4 151.0 18.7 ** 7.7 208
6/15/1992 AN 8.7 2.3 12.1 ** 19.6 ** 10.9 514
10/27/1992 A ** ** 29.1 305.0 36.2 ** 1.1 19.7 ** 475
12/28/1992 AN 1.2 2.3 19.5 488.0 46.3 2.3 7.9 13.5 23.5 515
12/28/1992 A 12.3 1.2 8.6 206.0 16.1 4.9 4.6 8.1 17.7 213
1/29/1993 A 14.2 1.7 13.9 239.0 ** 3.1 15.4 12.5 216
3/22/1993 A 2.4 ** ** 278.0 1.8 3.5 ** 2.1 364
4/23/1993 AN 2.5 7.5 28.0 385.0 3.3 3.5 22.7 16.2 1,110
5/28/1993 A 2.4 1.5 7.5 315.0 101.0 2.1 7.7 12.5 7.5
5/31/1993 AN 2.4 2.0 9.0 410.0 108.0 0.5 11.9 16.0 7.5 765
6/2/1993 A 2.4 1.7 7.5 300.0 76.0 1.6 7.7 13.5 7.5
6/2/1993 AN ** 2.5 13.5 422.0 125.0 6.4 12.6 16.5 7.5
6/21/1993 AN 2.4 2.5 14.0 623.0 39.0 4.4 12.7 15.5 7.5 583
6/21/1993 A 2.4 1.4 6.5 263.0 20.5 3.3 4.3 11.0 7.5 258
7/29/1993 A 2.4 2.2 12.5 334.0 24.5 0.2 7.1 14.0 7.5 325
7/29/1993 AN 2.4 2.5 15.6 369.0 34.5 0.5 9.6 15.0 7.5 603
8/26/1993 A 2.4 1.8 16.5 347.0 21.5 2.1 7.3 15.5 7.5 244
8/26/1993 AN 2.4 2.8 23.8 410.0 35.0 4.3 9.4 16.5 7.5 588
9/23/1993 A 5.5 2.8 14.6 364.0 24.0 4.2 6.0 16.0 5.4 370
9/23/1993 AN 3.6 3.4 20.0 439.0 34.4 7.4 6.8 17.1 5.4 664
10/25/1993 AN 15.0 4.4 23.1 383.0 35.1 2.9 12.0 14.0 20.3 479
10/25/1993 A 2.4 1.8 14.0 307.0 23.2 1.7 9.0 12.0 7.5 328
11/29/1993 AN 2.4 2.5 14.0 353.0 30.0 0.3 6.5 14.0 7.8 414
11/29/1993 A 2.4 1.7 9.8 286.0 15.0 0.1 11.0 14.0 7.8 256
12/20/1993 AN 2.4 3.0 24.5 388.5 49.0 0.3 10.5 14.6 13.2 563
12/20/1993 A 2.4 1.9 14.3 299.0 10.0 0.1 2.5 12.1 2.5 272
1/17/1994 AN 8.2 2.6 27.0 420.0 35.0 0.1 12.1 17.2 2.5 542
1/17/1994 A 6.4 2.0 15.8 314.0 18.5 0.1 9.2 13.4 5.5 288
2/14/1994 AN 12.9 6.0 22.7 392.0 27.4 2.9 6.4 14.1 3.4 538
2/14/1994 A 8.6 2.9 13.1 270.0 15.8 0.1 4.0 11.3 0.7 247
3/25/1994 AN 15.3 7.4 21.1 390.0 32.0 5.6 4.0 11.4 11.9 531
3/25/1994 A 1.5 2.5 9.9 295.0 22.6 1.8 4.0 6.8 2.5 287
4/19/1994 AN 5.0 5.8 21.4 406.0 33.3 2.0 3.5 12.5 3.5 536
4/19/1994 A 4.4 3.4 13.7 318.0 15.2 7.9 3.5 11.2 3.5 285
5/17/1994 AN 7.0 8.3 34.9 634.0 83.9 5.5 7.0 23.5 7.0 882
5/17/1994 A 0.7 1.8 14.6 364.0 28.1 2.5 7.0 12.1 7.0 298
6/28/1994 AN 5.5 2.2 22.0 465.0 33.0 4.4 6.5 16.7 10.0 463
6/28/1994 A 5.5 0.5 12.0 376.0 25.0 1.0 7.4 12.6 18.0 242
7/19/1994 AN 3.4 1.7 17.5 463.0 30.5 4.4 7.7 15.9 7.1 608
7/19/1994 A 6.4 1.4 11.8 405.0 17.3 2.3 5.6 16.9 2.8 374
8/16/1994 AN 4.6 2.3 24.3 458.0 29.3 9.4 6.9 18.9 2.8 613
8/16/1994 A 4.2 3.0 14.2 381.0 17.5 3.9 5.6 17.0 3.0 330
9/23/1994 AN 6.6 2.5 15.6 445.0 29.3 3.0 8.2 12.7 1.0 65
9/23/1994 A 6.7 1.4 8.3 296.0 14.5 1.2 5.5 11.2 1.0 274
10/18/1994 A 5.8 1.1 12.8 322.0 18.8 1.4 6.2 14.4 4.1 327
10/18/1994 AN 7.5 2.3 21.3 493.0 35.4 2.8 9.2 16.1 1.0 428
11/22/1994 A 3.1 1.4 11.5 308.0 16.5 1.2 6.5 12.7 0.3 269
11/22/1994 AN 8.7 2.6 24.9 523.7 35.9 2.9 10.1 17.9 0.5 635
12/20/1994 A 2.8 1.0 24.3 281.0 17.8 2.0 5.6 19.4 4.9 235
12/20/1994 AN 6.1 1.5 18.5 361.0 28.4 2.0 7.1 23.9 2.0 420
1/17/1995 A 4.6 1.4 14.8 286.0 17.2 0.8 6.1 15.7 4.9 252
1/17/1995 AN 6.3 2.8 27.6 465.0 38.3 2.5 10.1 20.2 3.3 571
2/14/1995 A 6.5 1.5 11.6 226.0 16.4 1.3 5.8 12.5 2.4 235
Page 2
Central Davis Sewer District
Anaerobic Biosolids - Historic Table
Aluminum Arsenic Cadmium Chromium Copper Lead Mercury Molyb Nickel Phosphorus Selenium Silver Zinc ppm
Date Type ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm
2/14/1995 AN 11.9 3.7 25.6 394.0 43.0 2.4 8.7 19.8 5.0 574
3/21/1995 A 12.0 3.0 15.1 300.0 33.0 1.3 5.5 15.4 1.5 281
3/21/1995 AN 12.0 4.7 28.0 406.0 52.0 2.3 8.2 19.7 2.5 544
4/18/1995 A 6.8 1.2 13.4 270.0 13.4 1.6 5.0 13.1 0.3 277
4/18/1995 AN 5.3 2.5 24.7 397.0 28.4 3.7 7.6 20.1 0.3 514
5/16/1995 A 9.1 1.1 15.5 192.0 17.7 0.8 6.6 13.6 2.7 277
6/19/1995 AN 2.0 1.0 17.0 330.0 29.0 0.0 4.0 15.0 4.0 320
7/19/1995 A 4.5 1.1 12.3 184.0 6.0 0.7 4.9 11.6 0.4 223
8/29/1995 AN 2.0 2.0 14.5 219.4 18.5 1.2 6.7 16.1 2.0 314
9/17/1995 A 6.2 2.0 18.8 447.0 26.7 0.3 7.7 17.5 6.2 405
10/24/1995 AN 2.0 2.0 20.0 446.0 44.0 3.9 6.0 16.0 4.0 516
11/20/1995 A 6.5 1.5 16.3 357.0 38.6 1.8 3.5 19.5 13.0 314
12/17/1995 AN 10.0 2.5 17.0 416.0 40.0 3.4 10.0 20.0 20.0 550
1/16/1996 A 14.0 2.0 10.0 294.0 3.5 0.3 7.0 14.0 14.0 287
2/12/1996 AN 19.8 1.5 11.5 208.0 67.8 9.7 3.1 8.7 3.2 291
3/19/1996 A 20.0 1.0 20.0 273.0 18.0 2.0 5.0 17.0 6.5 285
4/16/1996 AN 13.0 1.8 19.0 396.0 27.0 3.3 5.0 15.0 13.0 512
5/21/1996 A 4.0 1.3 12.5 290.0 18.0 1.3 6.0 13.0 5.5 225
6/21/1996 AN 3.0 2.3 18.4 429.0 31.0 3.7 6.0 17.0 4.0 532
7/23/1996 A 5.0 1.1 12.0 350.0 25.0 1.0 6.0 12.0 10.0 298
8/20/1996 AN 3.0 1.8 14.0 386.0 23.0 3.0 6.0 11.0 4.0 400
9/24/1996 A 2.0 1.4 11.5 428.0 16.0 1.7 7.0 13.0 15.0 306
10/22/1996 AN 6.0 1.8 16.5 402.0 21.0 2.0 7.0 13.0 3.5 384
11/26/1996 A 5.0 1.0 10.2 273.0 10.0 1.3 4.0 10.1 2.5 190
12/19/1996 AN 2.4 1.5 15.9 411.0 32.0 6.0 2.1 14.4 3.5 422
1/21/1997 A 2.8 0.8 8.6 295.0 12.0 0.3 4.0 12.0 3.8 168
2/10/1997 AN 2.5 1.4 13.4 398.0 25.0 1.6 6.0 10.3 3.5 402
3/17/1997 A 3.5 1.1 12.2 374.0 16.0 0.5 5.0 12.0 4.6 255
4/21/1997 AN 4.0 2.2 19.0 626.0 30.0 2.7 10.0 15.0 3.0 592
5/19/1997 A 3.0 0.9 11.0 395.0 14.0 1.3 7.0 11.0 4.0 278
6/27/1997 AN 3.0 1.4 15.1 405.0 27.0 3.5 5.0 16.0 4.0 451
7/22/1997 A 4.0 1.0 11.2 383.0 15.0 2.9 5.9 12.7 2.0 288
8/26/1997 AN 3.0 1.8 16.7 587.0 29.0 3.1 7.0 14.0 4.0 563
9/23/1997 A 2.9 1.1 12.2 473.0 22.0 4.2 6.0 11.0 3.9 306
10/21/1997 AN 3.0 1.1 12.4 333.0 14.0 0.9 6.0 9.0 4.0 312
11/28/1997 A 3.0 0.5 9.0 446.0 15.0 2.0 5.0 10.0 3.8 240
12/19/1997 AN 6.0 2.2 24.0 750.0 36.0 4.0 11.0 17.4 3.5 632
1/28/1998 AN 5.0 0.5 10.6 290.0 14.0 1.9 4.0 9.3 5.7 186
2/10/1998 A 8,860.0 5.2 1.4 20.0 477.0 27.0 5.3 8.0 13.0 7.0 7.7 454
3/31/1998 AN 16,600.0 11.0 1.1 17.8 429.0 20.0 2.5 5.0 12.0 11.0 10.2 422
4/21/1998 A 9,930.0 8.0 0.4 11.7 334.0 15.0 2.7 4.6 11.0 8.0 6.4 219
5/20/1998 AN 20,100.0 10.0 0.8 23.4 465.0 26.0 3.6 5.0 14.0 10.0 9.7 452
6/30/1998 A 13,000.0 9.0 1.0 16.5 376.0 12.0 3.2 6.0 13.0 9.0 6.6 290
7/31/1998 AN 22,000.0 10.0 2.0 20.0 630.0 25.0 3.0 12.0 15.0 10.0 15.0 701
8/14/1998 A 12,900.0 10.0 1.2 14.6 534.0 21.0 1.4 8.0 11.0 10.0 10.6 355
9/22/1998 AN 19,200.0 10.0 1.7 16.2 578.0 16.0 5.2 10.0 13.0 10.0 12.2 605
10/26/1998 A 11,800.0 11.0 0.5 13.5 471.0 11.0 ** 7.0 11.0 11.0 8.6 280
11/20/1998 AN 17,300.0 10.0 1.0 16.7 470.0 17.0 ** 8.0 12.0 10.0 9.1 510
12/8/1998 A 10,400.0 14.0 0.7 12.8 384.0 7.0 8.2 6.0 11.0 14.0 7.8 234
1/18/1999 AN 19,000.0 11.0 14.5 23.0 460.0 22.0 1.0 7.0 14.0 11.0 8.9 510
2/12/1999 A 9,800.0 5.0 0.6 12.0 350.0 11.0 0.1 6.0 11.0 5.0 7.0 210
3/2/1999 AN 9,500.0 10.0 0.7 11.0 240.0 16.0 5.0 4.0 7.0 10.0 4.0 250
5/25/1999 AN 21,000.0 10.0 1.4 21.0 560.0 27.0 5.9 6.0 13.0 10.0 9.0 560
7/10/1999 AN 18,000.0 10.0 1.0 20.0 540.0 18.0 3.8 6.0 14.0 10.0 9.0 520
9/11/1999 AN 16,000.0 10.0 1.4 15.2 500.0 16.0 5.6 6.0 10.0 10.0 8.5 490
12/13/1999 AN 22,000.0 9.0 1.6 18.0 760.0 21.0 8.6 9.0 15.0 9.0 16.0 620
2/14/2000 AN 27,000.0 5.0 2.0 21.7 790.0 27.0 4.0 9.0 14.0 5.0 19.0 700
4/10/2000 AN 22,000.0 5.0 1.7 21.6 700.0 23.0 3.5 7.0 12.0 5.0 16.0 580
6/27/2000 AN 19,000.0 5.0 1.4 19.0 590.0 18.0 3.1 11.0 11.0 5.0 21.0 570
8/21/2000 AN 26,000.0 4.5 2.0 22.0 860.0 27.0 3.1 15.0 15.0 4.5 17.0 800
10/16/2000 AN 22,000.0 15.0 2.0 16.0 710.0 21.0 5.0 11.0 11.0 5.0 19.0 620
1/22/2001 AN 22,000.0 5.0 1.4 17.0 700.0 23.0 3.1 10.0 11.0 5.0 5.0 630
1/22/2001 A 11,000.0 5.0 0.3 9.3 440.0 3.5 1.4 5.0 9.0 5.0 5.0 420
3/7/2001 AN 24,000.0 10.0 1.5 18.0 680.0 24.0 3.5 9.0 12.0 10.0 11.0 620
5/1/2001 AN 24,000.0 5.0 1.7 20.0 690.0 24.0 3.8 7.0 13.0 5.0 12.0 650
7/3/2001 AN 19,000.0 0.5 1.1 18.0 560.0 16.0 4.2 11.0 11.0 0.5 13.0 600
12/18/2001 AN 24,000.0 12.0 0.9 17.0 720.0 15.0 3.9 11.0 14.0 5.5 630
3/12/2002 AN 33,000.0 8.0 1.7 26.0 890.0 26.0 3.2 12.0 17.0 29,000 15.0 16.0 880
5/14/2002 AN 22,000.0 5.0 1.7 20.0 600.0 28.0 5.2 8.0 12.0 23,000 5.0 12.0 640
7/1/2002 AN 22,000.0 5.0 1.3 20.0 620.0 16.0 4.0 8.0 12.0 22,000 13.0 9.8 600
9/13/2002 AN 29,000.0 9.0 1.9 20.0 870.0 21.0 4.4 12.0 14.0 26,000 9.0 13.0 600
11/25/2002 A 9,100.0 4.0 0.6 7.0 340.0 7.0 0.3 5.0 6.0 13,000 5.0 4.2 230
12/31/2002 AN 17,000.0 8.5 0.4 10.0 580.0 6.0 8.0 8.0 10.0 25,000 8.5 6.7 420
2/22/2003 A 12,000 5 0.6 8 430 3.5 2 5 8 21,000 5 6.1 310
2/22/2003 AN 21,000 10 1.5 18 800 18 4 12 12 25,000 10 12 680
4/14/2003 AN 28,000 5 1.8 18 760 28 4.3 13 12 25,000 5 16 630
7/17/2003 AN 28,000 5 2 18 840 27 4.2 13 16 27,000 5 31 660
10/6/2003 AN 29,000 12 1.9 16 860 28 3.8 16 15 24,000 5 29 730
Page 3
Central Davis Sewer District
Anaerobic Biosolids - Historic Table
Aluminum Arsenic Cadmium Chromium Copper Lead Mercury Molyb Nickel Phosphorus Selenium Silver Zinc ppm
Date Type ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm
1/28/2004 A 14,000 5 0.25 11 520 11 1.3 7 12 22,000 5 19 850
1/28/2004 AN 31,000 2 1.3 18 780 26 3.6 13 13 26,000 2 38 720
4/13/2004 AN 26,000 5 1.4 19 710 24 3.2 9 15 24,000 5 31 620
7/23/2004 AN 28,000 5 1.6 21 920 22 3.2 12 18 26,000 5 32 780
10/7/2004 AN 19,000 5 0.8 16 530 17 2.9 8 16 14,000 5 17 490
1/11/2005 AN 21,000 5 1 15 770 13 3 4 13 20,000 5 33 690
4/12/2005 AN 18,000 5.5 0.7 16 580 19 4.1 1.1 13 15,000 5.5 20 490
7/15/2005 AN 16,100 5 1.9 17.9 606 14 2.7 1 16 15,900 5 18 577
10/5/2005 AN 16,000 18 1.5 15 840 14 2.7 7 14 19,000 5 16 700
1/10/2006 AN 19,000 5 1.4 18 1000 13 2.7 11 15 23,000 5 29 800
4/3/2006 AN 16,100 5 1.5 14.7 843 19.9 1.22 8.89 10.3 20,000 5 22 626
7/14/2006 AN 15,000 14 1 18 900 21 2 10 14 20,000 5 24 660
10/6/2006 AN 13,000 13 0.8 15 800 17 2.2 10 11 15,000 5 16 600
1/5/2007 AN 15,500 15 1 17.2 970 15 3.7 11 11.4 1,660 5 25.6 706
4/4/2007 AN 15,000 13 1 19 980 20 1.3 12 13 26,000 6 19 800
7/6/2007 AN 14,000 16 1 17 1080 17 2 13 13 22,000 5 21 800
10/1/2007 AN 11,300 17 1.2 15.1 1090 19 2.5 15 6.7 18,600 7 13.7 873
1/8/2008 AN 11,500 14 1 14.6 913 15.2 0.12 11 11 18,400 2.5 20.3 715
4/4/2008 AN 13,500 15.7 1 17 940 75 2.3 12 13 24,800 6.6 16 800
7/8/2008 AN 12,700 15 1.2 16.8 978 25 2.5 11.7 13.2 23,200 0.25 14.7 543
10/21/2008 AN 12,000 18 1.1 15.6 1200 27 0.18 13 12.5 24,000 2.5 15.5 880
1/5/2009 AN 11,400 25 1.2 29 1280 20 1.6 13 11.2 23,500 2.5 16.4 826
4/6/2009 AN 11,500 16 1.1 18.6 1150 18.3 1.7 11.4 15.5 25,900 8.2 14.6 859
7/6/2009 AN 12,100 18 1.1 18.3 1260 21.4 2 11.6 14.3 23,500 9.4 14.4 901
10/12/2009 AN 11,100 20 1.2 16 1400 16.7 2 13 12.6 24,000 5.6 12.4 987
1/12/2010 AN 10,300 18.6 1.03 13.5 1200 13.7 1.75 12.3 10.9 24,000 6.21 13.3 884
4/8/2010 AN 11,200 15.9 1.07 19.1 998 15.7 3.03 12.3 12.9 11,200 12.2 12.2 913
7/16/2010 AN 11,700 35.5 2.29 22.1 1120 34.8 0.45 15.7 15.6 25,600 21.5 21.5 983
10/4/2010 AN 10,200 20.1 1.06 14.3 1240 15.5 1.5 12.8 11.6 20,800 8.02 12 922
1/14/2011 AN 10,700 19.5 1.02 14.7 1270 13.2 1.31 13.2 10.4 22,100 5.16 11.7 852
4/4/2011 AN 9,560 17.4 0.86 15.2 850 16.2 2.2 10.7 12 19,800 6.89 9.63 733
7/14/2011 AN 3,410 13.6 0.49 6.78 425 10.6 3.1 5.0 5.6 8,460 11.8 4.51 345
10/6/2011 AN 7,430 21.7 1.05 14.3 1250 16.7 2.04 10.9 12.6 17,900 8.45 8.69 812
1/9/2012 AN 4,210 14.6 0.674 6.75 771 9.4 1.15 8.47 9.24 15,100 8.17 5.61 570
4/9/2012 AN 4,710 14.7 0.811 10.6 807 11 1.77 9.03 9.36 16,400 8.35 6.55 632
7/6/2012 AN 5,000 16.7 0.88 13.3 948 13.3 1.64 10.2 9.83 17,100 6.59 7.46 744
10/1/2012 AN 4,870 21.7 0.501 11.7 1210 16.6 2.16 12.5 10 18,800 8.76 4.08 794
1/7/2013 AN 9,320 20.3 0.857 10.3 1050 12.1 1.72 11.8 9.06 21,000 8.58 5.95 691
4/8/2013 AN 7,460 23.6 0.884 15.6 1090 13.4 0.77 13.2 12.8 24,500 10.8 6.76 827
7/8/2013 AN 3,790 14.6 0.632 10.7 721 11.9 1.98 8.39 8.12 12,800 7.28 5.03 560
10/4/2013 AN 5,030 21 1.14 15.7 1340 16.8 1.91 14.6 13.7 18,500 9.99 7.35 995
1/6/2014 AN 4,200 14.7 0.816 10.5 828 10.4 0.79 10.1 9.31 12,000 7.1 4.8 541
4/4/2014 AN 4,910 13.2 1.12 14 1110 13.4 1.81 13.2 13.3 19,200 8.87 7.14 105
7/7/2014 AN 5,100 16.7 0.788 14.3 1170 15.4 1.99 12.8 12.7 19,600 10.7 6.14 939
10/8/2014 AN 4,070 15.1 0.585 11.6 908 9.21 0.9 3.11 9.48 13,300 3.54 4.67 716
1/7/2015 AN 5,270 18 0.779 14.3 1220 13.2 1.88 15.9 12.3 18,400 3.9 5.2 906
4/3/2015 AN 4,880 13.4 1.05 13.5 1090 13.7 0.34 14 12 20,500 6.33 3.83 792
7/13/2015 AN 5,240 15.5 0.785 16.2 1020 14.2 1.45 11.7 12.1 16,100 2.46 2.25 868
10/9/2015 AN 4,380 13.4 0.7 11.4 974 11.3 1.5 9.62 9.52 13,000 5.01 1.46 630
1/8/2016 AN 6,810 18.4 1.1 18 1370 15.6 0.77 15.6 14.7 25,000 8.7 2.5 983
4/4/2016 AN 5,260 13.2 0.71 16.1 1040 12.3 1.43 11.4 12.2 21,600 7.9 2.1 761
8/2/2016 AN 4,640 16.2 0.84 16.5 1330 16.1 0.66 15.6 13.6 19,700 14.3 2.57 1000
10/6/2016 AN 5,190 23.5 1.01 17.6 1400 17.1 0.74 16.5 14.6 22,100 7.5 4.25 1060
1/6/2017 AN 2,260 8.17 1.01 7.35 487 10.1 0.69 5.41 5.16 14,800 1.18 1.92 374
4/3/2017 AN 5,620 19.9 0.95 21.6 1140 13.3 2.33 17.2 14.5 23,500 3.16 3.73 1080
7/10/2017 AN 44,600 1.34 19.1 1050 18.6 0.18 16.3 12.5 36,300 34.2 2.52 940
10/4/2017 AN 49,000 34.2 0.993 16.1 1160 17.3 2.17 14.6 10.9 37,000 29.1 2.36 933
1/2/2018 AN 15,900 25.4 1.04 18.4 1240 15 1.28 19.1 12.9 24,700 4.99 2.08 1020
4/6/2018 AN 7,660 17.3 0.733 12.1 895 11.8 2.63 14.7 9.27 15,700 6.13 2.65 902
7/16/2018 AN 6,650 15.2 0.895 21.9 1130 17.5 1.08 17 18.9 22,000 51.9 2.89 1020
11/26/2018 AN 7,480 27.2 1.25 19.8 1430 11.1 3.76 24.8 15 27,000 6.52 1.41 55.4
1/11/2019 AN 5,800 26.6 1.23 18.3 1370 7.75 0.66 22.3 13.3 26,200 5.63 2.27 1390
4/8/2019 AN 4,240 15.8 0.796 14.9 861 5.07 1.78 13.6 10.5 13,600 3.12 2.91 559
7/15/2019 AN 22,300 23.9 0.768 19.2 1220 4.41 0.23 15.6 14 31,100 2.06 1.89 731
10/7/2019 AN 32,500 29.4 0.78 19.1 1490 3.14 0.39 20.1 12.8 35,700 2.58 3.17 760
1/6/2020 AN 29,700 26 1.11 17.8 1370 10.9 0.98 18.4 14.2 40,300 9.53 2.22 1070
4/60/20 AN 30,100 20.6 0.738 15.9 1010 9.37 0.56 13.6 9.22 37,900 5.32 1.3 848
7/13/2020 AN 36,400 24.9 0.673 16.9 1030 9.71 1.35 16 10.6 40,900 6.91 0.902 906
10/21/2020 AN 41,400 30.3 0.651 16.7 1280 11.5 1.46 16.7 9.89 42,100 4.94 2.39 927
1/15/2021 AN 32,600 20.2 0.662 12.5 1060 8.01 0.42 14.1 8.92 35,100 5.68 1.48 763
4/13/2021 AN 39,800 21.7 0.561 17.1 1140 9.53 0.09 15.8 10.7 31,100 10.80 1.62 859
7/15/2021 AN 34,100 21.4 0.776 17.5 946 10.3 0.083 14.8 9.86 35,200 4.51 1.4 890
10/25/2021 AN 49,600 29 0.561 15.6 1060 10.1 0.3 15.4 11.8 31,300 5.45 1.12 882
1/31/20022 AN 44,000 20.5 0.32 17.1 802 9.11 0.2 11.4 9.26 28,200 5.6 1.23 682
4/22/2022 AN 61,200 29 0.168 24.4 1020 8.19 0.24 12.6 9.07 32,600 9.33 0.929 809
7/15/2022 AN 71,800 32.9 0.899 24.5 963 7.89 0.38 14.4 14.7 36,300 8.84 1.95 926
10/4/2022 AN 66,000 27.1 0.834 16.4 992 8.81 0.229 14.9 11.5 42,000 6.31 1.73 907
Page 4
Central Davis Sewer District
Anaerobic Biosolids - Historic Table
Aluminum Arsenic Cadmium Chromium Copper Lead Mercury Molyb Nickel Phosphorus Selenium Silver Zinc ppm
Date Type ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm
average 17,870.4 10.2 1.7 16.8 620.9 23.4 2.5 9.2 13.2 23,075.2 7.0 10.4 557.4
Std. Dev. 13,208.7 7.7 1.4 5.4 342.0 16.3 1.9 4.2 3.3 7,787.8 5.7 8.3 243.7
Avg-2StDv 0.0 0.0 0.0 6.1 0.0 0.0 0.0 0.7 6.7 7,499.7 0.0 0.0 70.0
Avg+2StDv 44,287.8 25.6 4.4 27.5 1,305.0 56.0 6.3 17.6 19.7 38,650.7 18.5 27.0 1,044.7
Note: 1. When a value was found to be below the detection limit, the whole number of the detection limit was used in the analysis.
2. An ** indicates that the value has not been used because of suspect integrity
Page 5
Central Davis Sewer District
Anaerobic Biosolids
Aluminum Quality Control Chart
0.0
10,000.0
20,000.0
30,000.0
40,000.0
50,000.0
60,000.0
70,000.0
80,000.0
1 21416181101
Aluminum LCL UCL Linear (Aluminum)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Al QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Arsenic Quality Control Chart
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
1 21 41 61 81 101 121 141 161 181
Arsenic LCL UCL Linear (Arsenic)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 As QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Cadmium Quality Control Chart
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
1 21 41 61 81 101 121 141 161 181 201 221
Cadmium LCL UCL Linear (Cadmium)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Cd QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Chromium Quality Control Chart
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
1 21 41 61 81 101 121 141 161 181 201 221
Chromium LCL UCL Linear (Chromium)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Cr QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Copper Quality Control Chart
0.0
200.0
400.0
600.0
800.0
1,000.0
1,200.0
1,400.0
1,600.0
1 21 41 61 81 101 121 141 161 181 201 221
Copper LCL UCL Linear (Copper)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Cu QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Lead Quality Control Chart
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
1 21 41 61 81 101 121 141 161 181 201 221
Lead LCL UCL Linear (Lead)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Pb QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Mercury Quality Control Chart
0.0
2.0
4.0
6.0
8.0
10.0
12.0
1 21 41 61 81 101 121 141 161 181 201 221
Mercury LCL UCL Linear (Mercury)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Hg QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Molybdenum Quality Control Chart
0.0
5.0
10.0
15.0
20.0
25.0
30.0
1 21416181101121141161181201
Molybdenum LCL UCL Linear (Molybdenum)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Mo QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Nickel Quality Control Chart
0.0
5.0
10.0
15.0
20.0
25.0
30.0
1 21 41 61 81 101 121 141 161 181 201 221
Nickel LCL UCL Linear (Nickel)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Ni QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Selenium Quality Control Chart
0.0
10.0
20.0
30.0
40.0
50.0
60.0
1 21 41 61 81 101 121 141 161 181 201
Selenium LCL UCL Linear (Selenium)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Se QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Silver Quality Control Chart
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
1 21416181101
Silver LCL UCL Linear (Silver)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Ag QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Zinc Quality Control Chart
0
200
400
600
800
1,000
1,200
1,400
1,600
1 21 41 61 81 101 121 141 161 181 201 221
Zinc LCL UCL Linear (Zinc)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Zn QC Chart
Central Davis Sewer District
Anaerobic Biosolids
Phosphorus Quality Control Chart

0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
45,000
1 21416181
Phosphorus LCL UCL Linear (Phosphorus)
11/14/2022 11:28 AM
Anaerobic Biosolids Metals Summary 2022 Phos QC Chart
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Central Davis Sewer District
Attn: Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
Work Order: 22B0389
Project: [none]
2/15/2022
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
2/4/22 14:10 @ 2.7 °C
2/15/2022
[none]
Sample ID: Influent
Lab ID: 22B0389-01Matrix: Wastewater Sample Type: Composite
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/3/22 8:00
Preparation
Date/Time
Sampled By: Gregg
Minimum
Reporting
Limit MethodResult
Inorganic
mg/L APH-R, BOD-BL2/14/22 14:382/9/22 17:305SM 5210 B216Biochemical Oxygen Demand
mg/L 2/8/222/8/2220SM 2540 D162Total Suspended Solids (TSS)
Project Name: [none]CtF WO#: 22B0389
www.ChemtechFord.com Page 2 of 7Page 2 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
2/4/22 14:10 @ 2.7 °C
2/15/2022
[none]
Sample ID: Final Effluent
Lab ID: 22B0389-02Matrix: Wastewater Sample Type: Composite
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/3/22 8:00
Preparation
Date/Time
Sampled By: Gregg
Minimum
Reporting
Limit MethodResult
Inorganic
mg/L APH-R, BOD-BL2/14/22 14:392/9/22 17:305SM 5210 B12Biochemical Oxygen Demand
mg/L 2/8/222/8/224SM 2540 D13Total Suspended Solids (TSS)
Project Name: [none]CtF WO#: 22B0389
www.ChemtechFord.com Page 3 of 7Page 3 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
2/4/22 14:10 @ 2.7 °C
2/15/2022
[none]
Sample ID: Anaerobic
Lab ID: 22B0389-03Matrix: Sludge Sample Type: Grab
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/31/22 10:40
Preparation
Date/Time
Sampled By: Nate
Minimum
Reporting
Limit MethodResult
Inorganic
mg/kg 2/7/222/7/2220.0 SM 4500 NH3 H646Ammonia (Soluble) as N
mg/kg 2/14/222/11/22430SM 4500 Norg3850Total Kjeldahl Nitrogen
%2/4/222/4/220.1 SM 2540G6.3Total Solids
%2/4/222/4/220.1 SM 2540 E60.9Total Volatile Solids
umho/cm 2/9/222/9/2210SSSA 10-3.36730Conductivity (Soluble)
mg/kg dry 2/8/222/8/2215.9 SM 4500 NO3- FNDNitrate + Nitrite, Soluble, as N
Metals
mg/kg dry 2/9/222/8/2225.6 EPA 6010B/C/D44000Aluminum, Total
mg/kg dry J2/9/222/8/2225.6 EPA 6010B/C/D20.5Arsenic, Total
mg/kg dry 2/9/222/8/221.28 EPA 6010B/C/DNDCadmium, Total
mg/kg dry 2/9/222/8/221.28 EPA 6010B/C/D17.1Chromium, Total
mg/kg dry 2/9/222/8/221.28 EPA 6010B/C/D802Copper, Total
mg/kg dry J2/9/222/8/2212.8 EPA 6010B/C/D9.11Lead, Total
mg/kg dry J2/9/222/9/220.29 EPA 7471A0.20Mercury, Total
mg/kg dry 2/9/222/8/222.56 EPA 6010B/C/D11.4Molybdenum, Total
mg/kg dry 2/9/222/8/221.28 EPA 6010B/C/D9.26Nickel, Total
mg/kg dry 2/9/222/8/22128EPA 6010B/C/D28200Phosphorus, Total as P
mg/kg dry J2/9/222/8/2212.8 EPA 6010B/C/D5.60Selenium, Total
mg/kg dry J2/9/222/8/221.28 EPA 6010B/C/D1.23Silver, Total
mg/kg dry 2/9/222/8/222.56 EPA 6010B/C/D682Zinc, Total
Project Name: [none]CtF WO#: 22B0389
www.ChemtechFord.com Page 4 of 7Page 4 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
2/4/22 14:10 @ 2.7 °C
2/15/2022
[none]
Sample ID: Effluent
Lab ID: 22B0389-04Matrix: Wastewater Sample Type: Grab
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/4/22 8:49
Preparation
Date/Time
Sampled By: Gregg
Minimum
Reporting
Limit MethodResult
Calculations
mg/L 2/8/222/7/221.3 SM 2340 B355Hardness, Total as CaCO3
Inorganic
mg/L 2/8/222/8/221.0 SM 2320 B275Alkalinity - Bicarbonate (as CaCO3)
mg/L 2/8/222/8/221.0 SM 2320 BNDAlkalinity - Carbonate (as CaCO3)
mg/L 2/8/222/8/221.0 SM 2320 BNDAlkalinity - Hydroxide (as CaCO3)
mg/L 2/8/222/8/221.0 SM 2320 B275Alkalinity - Total (as CaCO3)
mg/L 2/7/222/7/220.2 SM 4500 NH3 H3.7Ammonia as N
mg/L 2/4/222/4/225.0 EPA 300.0319Chloride
mg/L 2/4/22 23:232/4/22 16:510.5 EPA 300.03.2Nitrate as N
mg/L 2/4/22 18:452/4/22 17:250.01 SM 4500 P-E0.41Phosphate, ortho as P
mg/L 2/4/222/4/225.0 EPA 300.083.0Sulfate
mg/L 2/9/222/9/220.1 SM 4500 S2-DNDSulfide
mg/L 2/9/222/9/2220SM 2540 C1030Total Dissolved Solids (TDS)
mg/L 2/8/222/7/221.0 SM 4500 Norg5.0Total Kjeldahl Nitrogen
Metals
mg/L 2/8/222/7/220.2 EPA 200.780.9Calcium, Total
mg/L 2/7/222/7/220.0010 EPA 200.80.0138Copper, Total
mg/L 2/8/222/7/220.2 EPA 200.737.2Magnesium, Total
mg/L 2/8/222/7/220.5 EPA 200.715.3Potassium, Total
mg/L 2/8/222/7/220.5 EPA 200.7225Sodium, Total
Project Name: [none]CtF WO#: 22B0389
www.ChemtechFord.com Page 5 of 7Page 5 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
2/4/22 14:10 @ 2.7 °C
2/15/2022
[none]
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
APH-R = This sample was originally analyzed within the EPA-recommended holding time. The reported value was obtained from a confirmatory re-analysis that
was performed outside of that holding time.
BOD-BL = Of the two dilution blanks that were set up with the batch, one slightly failed the maximum depletion criteria. Because the other blank passed, it was
determined that the dilution water was not compromised. The BOD results are not adversely affected.
J = Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
Project Name: [none]CtF WO#: 22B0389
www.ChemtechFord.com Page 6 of 7Page 6 of 10
Page 7 of 10
Page 8 of 10
Page 9 of 10
Page 10 of 10
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Central Davis Sewer District
Attn: Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
Work Order: 22D1705
Project: Anaerobic Sludge
5/3/2022
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 6
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
4/22/22 14:05 @ 8.4 °C
5/3/2022
Anaerobic Sludge
Sample ID: Anaerobic Sludge
Lab ID: 22D1705-01Matrix: Sludge
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/22/22 11:20
Preparation
Date/Time
Sampled By: Paco Orona
Minimum
Reporting
Limit MethodResult
Inorganic
mg/kg 4/28/224/27/2210.0 SM 4500 NH3 H489Ammonia (Soluble) as N
mg/kg 5/2/224/28/22744SM 4500 Norg7800Total Kjeldahl Nitrogen
%4/22/224/22/220.1 SM 2540G17.4Total Solids
%4/22/224/22/220.1 SM 2540 E62.7Total Volatile Solids
mg/kg 4/29/224/29/221.0 SM 4500 NO3- F6.2Nitrate + Nitrite, Soluble, as N
Metals
mg/kg dry 4/28/224/27/228.8 EPA 6010B/C/D61200Aluminum, Total
mg/kg dry 4/28/224/27/228.84 EPA 6010B/C/D29.0Arsenic, Total
mg/kg dry J4/28/224/27/220.442 EPA 6010B/C/D0.168Cadmium, Total
mg/kg dry 4/28/224/27/220.442 EPA 6010B/C/D24.4Chromium, Total
mg/kg dry 4/28/224/27/220.442 EPA 6010B/C/D1020Copper, Total
mg/kg dry 4/28/224/27/224.42 EPA 6010B/C/D8.19Lead, Total
mg/kg dry 4/27/224/27/220.13 EPA 7471A0.24Mercury, Total
mg/kg dry 4/28/224/27/220.88 EPA 6010B/C/D12.6Molybdenum, Total
mg/kg dry 4/28/224/27/220.442 EPA 6010B/C/D9.07Nickel, Total
mg/kg dry 4/28/224/27/2244.2 EPA 6010B/C/D32600Phosphorus, Total as P
mg/kg dry J4/28/224/27/2222.1 EPA 6010B/C/D9.33Selenium, Total
mg/kg dry J4/28/224/27/222.21 EPA 6010B/C/D0.929Silver, Total
mg/kg dry 4/28/224/27/220.88 EPA 6010B/C/D809Zinc, Total
Fatty Acids by EPA Method 8015 (modified)
mg/L 4/27/224/27/221.00 EPA 8015 C24.6Acetic Acid
mg/L 4/27/224/27/221.00 EPA 8015 CNDButyric Acid
mg/L 4/27/224/27/221.00 EPA 8015 CNDCaproic Acid
mg/L 4/27/224/27/221.00 EPA 8015 CNDHeptanoic Acid
mg/L 4/27/224/27/221.00 EPA 8015 CNDIsobutyric Acid
mg/L 4/27/224/27/221.00 EPA 8015 CNDIsocaproic Acid
mg/L 4/27/224/27/221.00 EPA 8015 CNDIsovaleric Acid
mg/L 4/27/224/27/221.00 EPA 8015 CNDPropanoic Acid
mg/L 4/27/224/27/221.00 EPA 8015 CNDValeric Acid
mg/L 4/27/224/27/2210.0 EPA 8015 C24.6Volatile Acids
Project Name: Anaerobic Sludge CtF WO#: 22D1705
www.ChemtechFord.com Page 2 of 4Page 2 of 6
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
4/22/22 14:05 @ 8.4 °C
5/3/2022
Anaerobic Sludge
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
J = Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
Project Name: Anaerobic Sludge CtF WO#: 22D1705
www.ChemtechFord.com Page 3 of 4Page 3 of 6
Page 4 of 6
Page 5 of 6
Page 6 of 6
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Central Davis Sewer District
Attn: Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
Work Order: 22G1708
Project: Anaerobic / Biotic Ligand
8/9/2022
Approved By:
DRAFT REPORT, DATA SUBJECT TO CHANGE
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 7
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
7/21/22 9:45 @ 4.6 °C
8/9/2022
Anaerobic / Biotic Ligand
Sample ID: Anaerobic
Lab ID: 22G1708-01Matrix: Sludge
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/15/22 0:00
Preparation
Date/Time
Sampled By: Aimee Matthies
Minimum
Reporting
Limit MethodResult
Inorganic
mg/kg dry 7/29/227/29/226.5 SM 4500 NO3- FNDNitrate + Nitrite, Total, as N
mg/kg dry 8/1/228/1/22130SM 4500 NH3 H4340Ammonia (Soluble) as N
mg/kg dry 7/28/227/27/228820SM 4500 Norg47100Total Kjeldahl Nitrogen
%7/22/227/21/220.1 SM 2540G15.4Total Solids
%7/22/227/21/220.1 SM 2540 E59.1Total Volatile Solids
Metals
mg/kg dry 7/28/227/27/2250.0 EPA 6010B/C/D71800Aluminum, Total
mg/kg dry J7/28/227/27/2250.0 EPA 6010B/C/D32.9Arsenic, Total
mg/kg dry J7/28/227/27/222.50 EPA 6010B/C/D0.899Cadmium, Total
mg/kg dry 7/28/227/27/222.50 EPA 6010B/C/D24.5Chromium, Total
mg/kg dry 7/28/227/27/222.50 EPA 6010B/C/D963Copper, Total
mg/kg dry J7/28/227/27/2225.0 EPA 6010B/C/D7.89Lead, Total
mg/kg dry 8/1/227/29/220.14 EPA 7471A0.38Mercury, Total
mg/kg dry 7/28/227/27/225.00 EPA 6010B/C/D14.4Molybdenum, Total
mg/kg dry 7/28/227/27/222.50 EPA 6010B/C/D14.7Nickel, Total
mg/kg dry 8/1/227/27/22250EPA 6010B/C/D36300Phosphorus, Total as P
mg/kg dry J7/28/227/27/2225.0 EPA 6010B/C/D8.84Selenium, Total
mg/kg dry J7/28/227/27/222.50 EPA 6010B/C/D1.95Silver, Total
mg/kg dry 7/28/227/27/225.00 EPA 6010B/C/D926Zinc, Total
Project Name: Anaerobic / Biotic Ligand CtF WO#: 22G1708
www.ChemtechFord.com Page 2 of 5Page 2 of 7
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
7/21/22 9:45 @ 4.6 °C
8/9/2022
Anaerobic / Biotic Ligand
Sample ID: Final Effluent - grab
Lab ID: 22G1708-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 7/20/22 10:58
Preparation
Date/Time
Sampled By: Aimee Matthies
Minimum
Reporting
Limit MethodResult
Calculations
mg/L 7/28/227/26/221.3 SM 2340 B259Hardness, Total as CaCO3
Inorganic
mg/L 7/21/227/21/221.0 SM 2320 B218Alkalinity - Bicarbonate (as CaCO3)
mg/L 7/21/227/21/221.0 SM 2320 BNDAlkalinity - Carbonate (as CaCO3)
mg/L 7/21/227/21/221.0 SM 2320 BNDAlkalinity - Hydroxide (as CaCO3)
mg/L 7/21/227/21/221.0 SM 2320 B218Alkalinity - Total (as CaCO3)
mg/L 7/26/227/26/220.2 SM 4500 NH3 H0.8Ammonia as N
mg/L 7/21/227/21/2210.0 EPA 300.0291Chloride
mg/L 7/21/22 18:247/21/22 12:280.1 EPA 300.07.4Nitrate as N
mg/L 7/21/22 21:107/21/22 18:540.01 SM 4500 P-E0.13Phosphate, ortho as P
mg/L 7/21/227/21/221.0 EPA 300.078.1Sulfate
mg/L 7/22/227/22/220.1 SM 4500 S2-DNDSulfide
mg/L 7/26/227/26/2220SM 2540 C840Total Dissolved Solids (TDS)
mg/L 7/28/227/27/221.0 SM 4500 Norg1.7Total Kjeldahl Nitrogen
Metals
mg/L 7/28/227/26/220.2 EPA 200.759.2Calcium, Total
mg/L 8/1/228/1/220.0010 EPA 200.80.0076Copper, Total
mg/L 7/28/227/26/220.2 EPA 200.726.9Magnesium, Total
mg/L 7/28/227/26/220.5 EPA 200.714.2Potassium, Total
mg/L 7/28/227/26/220.5 EPA 200.7175Sodium, Total
Project Name: Anaerobic / Biotic Ligand CtF WO#: 22G1708
www.ChemtechFord.com Page 3 of 5Page 3 of 7
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
7/21/22 9:45 @ 4.6 °C
8/9/2022
Anaerobic / Biotic Ligand
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
J = Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
Project Name: Anaerobic / Biotic Ligand CtF WO#: 22G1708
www.ChemtechFord.com Page 4 of 5Page 4 of 7
Page 5 of 7
Page 6 of 7
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The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Central Davis Sewer District
Attn: Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
Work Order: 22J1354
Project: Annual TCLP
10/31/2022
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 4
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
10/18/22 13:50 @ 11.2 °C
10/31/2022
Annual TCLP
Sample ID: Anaerobic Solid
Lab ID: 22J1354-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/14/22 10:55
Preparation
Date/Time
Sampled By: Jace
Minimum
Reporting
Limit MethodResult
TCLP Metals
mg/L 10/24/2210/24/220.50 EPA 6010BNDArsenic, TCLP
mg/L 10/24/2210/24/220.20 EPA 6010BNDBarium, TCLP
mg/L 10/24/2210/24/220.050 EPA 6010BNDCadmium, TCLP
mg/L 10/24/2210/24/220.050 EPA 6010BNDChromium, TCLP
mg/L 10/24/2210/24/220.20 EPA 6010BNDLead, TCLP
mg/L 10/21/2210/21/220.0020 EPA 7470ANDMercury, TCLP
mg/L 10/24/2210/24/220.50 EPA 6010BNDSelenium, TCLP
mg/L 10/24/2210/24/220.05 EPA 6010BNDSilver, TCLP
TCLP Volatile Organic Compounds
mg/L 10/25/2210/25/220.25 EPA 8260D/1311/5030AND1,1-Dichloroethylene, TCLP
mg/L 10/25/2210/25/220.25 EPA 8260D/1311/5030AND1,2-Dichloroethane, TCLP
mg/L 10/25/2210/25/220.25 EPA 8260D/1311/5030AND1,4-Dichlorobenzene, TCLP
mg/L 10/25/2210/25/220.25 EPA 8260D/1311/5030ANDBenzene, TCLP
mg/L 10/25/2210/25/220.25 EPA 8260D/1311/5030ANDCarbon Tetrachloride, TCLP
mg/L 10/25/2210/25/220.25 EPA 8260D/1311/5030ANDChlorobenzene, TCLP
mg/L 10/25/2210/25/220.25 EPA 8260D/1311/5030ANDChloroform, TCLP
mg/L 10/25/2210/25/220.25 EPA 8260D/1311/5030ANDHexachlorobutadiene, TCLP
mg/L 10/25/2210/25/222.50 EPA 8260D/1311/5030ANDMethyl Ethyl Ketone, TCLP
mg/L 10/25/2210/25/220.25 EPA 8260D/1311/5030ANDTetrachloroethylene, TCLP
mg/L 10/25/2210/25/220.25 EPA 8260D/1311/5030ANDTrichloroethylene, TCLP
mg/L 10/25/2210/25/220.20 EPA 8260D/1311/5030ANDVinyl Chloride, TCLP
TCLP Semi-Volatile Compounds
mg/L J-LOW10/21/2210/21/220.10 EPA 8270E/1311/3511ND1,4-Dichlorobenzene
mg/L 10/21/2210/21/220.10 EPA 8270E/1311/3511ND2,4,5-Trichlorophenol
mg/L 10/21/2210/21/220.10 EPA 8270E/1311/3511ND2,4,6-Trichlorophenol
mg/L 10/21/2210/21/220.10 EPA 8270E/1311/3511ND2,4-Dinitrotoluene
mg/L 10/21/2210/21/220.10 EPA 8270E/1311/3511ND2-Methylphenol
mg/L 10/21/2210/21/220.10 EPA 8270E/1311/3511ND3 & 4-Methylphenol
mg/L 10/21/2210/21/220.10 EPA 8270E/1311/3511NDHexachlorobenzene
mg/L 10/21/2210/21/220.10 EPA 8270E/1311/3511NDHexachlorobutadiene
mg/L J-LOW10/21/2210/21/220.10 EPA 8270E/1311/3511NDHexachloroethane
mg/L 10/21/2210/21/220.10 EPA 8270E/1311/3511NDNitrobenzene
mg/L 10/21/2210/21/220.10 EPA 8270E/1311/3511NDPentachlorophenol
mg/L J-LOW10/21/2210/21/220.10 EPA 8270E/1311/3511NDPyridine
Project Name: Annual TCLP CtF WO#: 22J1354
www.ChemtechFord.com Page 2 of 4Page 2 of 4
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
10/18/22 13:50 @ 11.2 °C
10/31/2022
Annual TCLP
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
J-LOW = Estimated low due to low recovery of LCS or CCV
Project Name: Annual TCLP CtF WO#: 22J1354
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Page 4 of 4

(This Page Intentionally Left Blank)
Compost Biosolids
Chemical Quality 1.2022 Testing Summary2.Historical Testing Summary3.Quality Control Charts4.Laboratory Reports
CDSD Compost Metals Quality - 2022
Aluminum Arsenic Cadmium Chromium Copper Lead Mercury Molyb Nickel Phosphorus Selenium Silver Zinc
Date Type ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm
3/28/2022 CPT 10,100 6.8 0.2 6.6 352 6.8 0.1 3.9 4.8 14,100 2.7 0.5 291
3/28/2022 CPT 10,500 8.0 0.2 7.3 372 8.0 0.1 3.4 5.5 11,600 2.7 0.5 316
3/28/2022 CPT 11,900 9.4 0.3 8.6 434 7.6 0.1 4.0 5.7 18,800 3.9 0.7 320
3/28/2022 CPT 10,200 8.9 0.2 9.9 422 4.5 0.2 5.4 6.5 18,600 3.3 0.6 304
3/28/2022 CPT 6,630 5.5 0.1 5.3 292 4.1 0.1 4.0 3.9 9,810 2.9 0.5 205
3/28/2022 CPT 6,870 5.7 0.1 5.7 306 5.2 0.1 3.4 4.5 10,200 3.2 0.4 219
Minimum 6,630 5.5 0.1 5.3 292 4.1 0.1 3.4 3.9 9,810 2.7 0.4 205
Average 9,367 7.4 0.2 7.2 363 6.0 0.1 4.0 5.1 13,852 3.1 0.5 276
Maximum 11,900 9.4 0.3 9.9 434 8.0 0.2 5.4 6.5 18,800 3.9 0.7 320
TKN
Ammonia
as N
Nitrate+
Nitrite-
Total
Total
Solids
Date ppm ppm ppm %
3/28/2022 17,900 2,000 225 84
3/28/2022 21,700 604 374 82
3/28/2022 17,000 1,540 224 87
3/28/2022 18,500 941 227 70
3/28/2022 19,000 970 357 79
3/28/2022 17,600 967 368 72
Minimum 17,000 604 224 70
Average 18,617 1,170 296 79
Maximum 21,700 2,000 374 87
Total Year Values
11/14/2022 11:33 AM
C:\Users\Owner\OneDrive\BIOSOLIDS Files\Biosolids - Consolidated Data\Biosolids Report - Calendar Year 2022\5. Compost Biosolids Chemical Quality\Compost Biosolids Metals Summary - 2022
Central Davis Sewer District
Composted Biosolids - Historic Table
Aluminum Arsenic Cadmium Chromium Copper Lead Mercury Molyb Nickel Phosphr Selenium Silver Zinc
Date #ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm
4/5/1999 Compost 1 7,700.0 14 0.7 14 290 18 2.4 15 12 14 4.7 220
4/5/1999 Compost 2 11,000.0 15 0.8 18 320 22 2.8 3 15 15 6 340
4/5/1999 Compost 3 9,900.0 14 0.7 17 300 32 3 2.8 13 14 5.5 260
4/5/1999 Compost 4 9,800.0 14 0.7 16 300 25 2.4 4 13 14 5.3 260
4/6/2000 N22 12,000.0 11 1 18 410 52 1.4 3 13 17,000.0 5 9 320
4/6/2000 S22 10,000.0 5 1.1 17 380 28 1.3 7 12 15,000.0 5 8 300
4/6/2000 W12 13,000.0 5 1 21 400 33 1.9 3 16 18,000.0 5 8.7 310
4/6/2000 E12 12,000.0 5 1.4 19 430 39 1.6 4 14 19,000.0 5 9 330
4/6/2000 N21 12,000.0 5 1 18 380 38 1.64 3 13 17,000.0 5 8 310
4/6/2000 S21 9,400.0 5 1 19 340 28 1.6 2 11 14,000.0 5 7 260
4/6/2000 W11 13,000.0 5 1 19 450 36 1.6 4 14 19,000.0 5 9.5 320
4/6/2000 E11 11,000.0 5 1 17 360 120 2.3 3 13 17,000.0 10 8.6 310
11/3/2000 18 12,000.0 5 0.6 15 390 20 1.3 6 11 18,000.0 13 10 280
11/3/2000 43 10,000.0 5.5 0.6 13 350 16 1.6 3 9 16,000.0 5.5 8 250
11/3/2000 80 13,000.0 6 0.3 17 460 26 1.9 5 13 19,000.0 16 9.3 330
11/3/2000 86 17,000.0 6.5 0.9 20 0.5 37 1.9 7 15 24,000.0 19 14 410
11/3/2000 87 12,000.0 6.5 0.35 15 420 27 2 6 11 17,000.0 6.5 9 310
11/3/2000 93 14,000.0 6.5 0.3 16 450 23 2 5 12 20,000.0 6.5 9.6 300
12/5/2001 1 8,400.0 5 0.25 9.6 370 16 2 4 9 13,000.0 5 6.9 220.0
12/5/2001 2 12,000.0 4.5 0.6 13 450 21 2.1 4 10 19,000.0 11 9 300.0
12/5/2001 3 9,300.0 5 0.5 11 370 14 1.2 4 9 14,000.0 5 7 230.0
12/5/2001 4 15,000.0 4.5 0.8 15 540 34 2.6 5 13 22,000.0 4.5 13 380.0
6/17/2002 1 1 8,800.0 17 0.6 26 360 10 4 9 13000.0 11 5.4 250
6/17/2002 1 2 13,000.0 5 0.5 15 460 11 5 12 20000.0 5 8.2 290
6/17/2002 2 1 13,000.0 5 0.7 14 430 14 5 10 18000.0 11 7.3 290
6/17/2002 2 2 6,800.0 5 0.025 7.7 290 9 6 7 10000.0 5 4.4 170
6/17/2002 3 1 31,000.0 5 0.025 30.7 170 3.5 4 4 7100.0 5 2.4 96
6/17/2002 3 2 16,000.0 10 0.5 19 530 7 5 14 24000.0 10 8 370
5/8/2003 11 13,000 12 1 12 390 15 1.7 3 11 16000.0 5 6.8 290
5/8/2003 12 13,000 5 1.1 11 410 17 2 4 10 16000.0 5 7.8 280
5/8/2003 13 14,000 5 1.2 13 480 18 2.3 5 12 20000.0 5 8.2 330
5/8/2003 14 9,800 5 0.9 8.8 310 12 2.2 4 8 14000.0 5 4.5 240
5/8/2003 21 12,000 5 1 11 370 16 1.6 4 9 15000.0 5 5.7 280
5/8/2003 22 12,000 5 1 11 360 16 2 4 10 16000.0 5 5.4 260
5/8/2003 23 11,000 5 1 10 380 14 1.4 4 9 15000.0 5 5.6 270
10/8/2003 101 8,600 5 0.7 7 310 12 1.9 3 7 11000.0 5 8.2 220
10/8/2003 102 7,000 5 0.7 5.9 250 9 1.3 3 6 10000.0 5 4.8 190
10/8/2003 103 12,000 5 1 10 400 17 1.9 4 9.6 17000.0 5 8.1 300
1/31/2004 B-40 15,000 5 0.7 12 570 18 1.7 8 11 21000 5 24 340
3/18/2004 4041 13,000 5 0.8 13 400 19 2.1 6 10 18000 5 8.4 290
3/18/2004 4042 11,000 5 0.7 9.3 340 22 1.5 3 7 16000 5 8.3 250
8/27/2004 8041 12,000 11 0.7 17 360 20 1.2 12 13 15000 5 13 290
8/27/2004 8042 12,000 5 0.6 14 380 20 1.5 8 11 16000 5 15 290
8/27/2004 8043 13,000 12 0.7 22 420 15 1.5 7 11 19000 5 18 310
8/27/2004 8044 12,000 5 0.5 14 380 12 1.5 6 11 16000 5 15 280
8/19/2005 C-17 7500 5 1.2 11 280 13 2.7 1 9 10000 5 9 220
8/19/2005 C-37 10400 5 1.3 12.6 353 14 2.7 1 12 13900 5 10.5 309
8/19/2005 C-63 8860 5 1.2 10.9 322 12 2.7 1 10 12300 5 9.6 539
11/6/2005 c-51 7800 5 0.7 12 330 8 2.7 3 11 11500 5 8.8 250
11/6/2005 c-52 7240 5 0.7 12 305 8 2.7 3 11 10600 5 8.7 225
11/6/2005 c-53 7850 5 0.6 12 300 8 2.7 3 10 11700 5 9.5 230
6/4/2006 1 3020 5 0.25 5.2 189 3.5 0.97 3.5 4.7 6400 5 5.2 113
6/4/2006 2 7200 5 0.5 10 400 10 0.7 3 8 12000 5 10 240
6/4/2006 3 7400 5 0.25 11 370 11 1 3 8.6 12000 5 10 240
6/4/2006 4 7500 5 0.25 10 370 11 1.1 4 8 12000 5 12 230
6/4/2006 5 6100 5 0.25 9.5 300 9.4 0.8 3 7 9900 5 9.4 200
10/5/2006 1 6000 5 0.25 10 300 12 1.3 3 8 12000 5 9.3 250
4/27/2007 4271 5900 6 0.6 10.55 420 9.6 0.9 4.5 8 12000 2.5 8 260
4/28/2007 4272 5600 6.3 0.6 10 400 9 0.8 4.5 8 12000 2.5 9.2 270
4/29/2007 4273 6300 6.8 6 11 440 10 1.2 6.7 8.7 13000 2.5 8.7 300
7/27/2007 CM-72707-1 3500 5.3 0.25 10 247 7 0.5 4 6.7 7500 2.5 5.2 170
7/28/2007 CM-72707-2 3000 6 0.25 8.4 222 7 0.6 4 7.4 6500 2.5 4.4 140
8/16/07 07 09065 5918 6 0.5 11.1 392 12 0.9 3 11.1 13800 2 9.2 298
8/28/07 07 09527 8100 8 0.7 17 574 13 1.3 4 11.5 20700 2.5 14 360
4/15/08 804513 5690 7 0.5 9 511 9 1.54 3 8 13700 2.5 7.8 300
4/15/08 804514 6440 7 0.5 10.6 558 11 1.26 5 8.6 15600 2.5 8.3 342
5/20/2008 806162 4730 7 0.5 10.1 376 10 0.81 4 7.8 11100 2.5 6.4 260
8/1/2008 810140 5900 7 0.6 12.3 384 31 1.31 4 8.6 15200 2.5 7.1 286
9/19/2008 813057 5420 7.7 0.7 11.2 404 26 0.84 3.3 8.4 15850 2.5 6.7 307
11/14/2022 11:33 AM
C:\Users\Owner\OneDrive\BIOSOLIDS Files\Biosolids - Consolidated Data\Biosolids Report - Calendar Year 2022\5. Compost Biosolids Chemical Quality\Compost
Biosolids Metals Summary - 2022
Central Davis Sewer District
Composted Biosolids - Historic Table
Aluminum Arsenic Cadmium Chromium Copper Lead Mercury Molyb Nickel Phosphr Selenium Silver Zinc
Date #ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm
9/30/08 813589 6500 8 0.7 13.6 451 21 1.21 3 9.4 19100 2..5 7.1 348
4/14/09 CPT 5480 10.4 0.7 14.2 585 13.5 1.2 4.1 9.4 14300 3.8 6.8 375
4/30/09 CPT 4910 8.2 0.6 9 462 12.4 0.7 3.8 7.1 12300 3 5.4 320
5/28/09 CPT 5760 8.9 0.8 11.4 535 18.3 0.9 4.4 8.6 15500 5.2 6.7 387
5/28/09 CPT 6090 8.1 0.8 12 554 18.2 0.9 4.7 8.7 15500 3.2 7.1 391
5/28/09 CPT 3620 8 0.6 8.3 395 14.1 0.5 4.5 7.3 9990 5.1 4.3 251
9/24/09 CPT 6760 10.6 0.8 14.2 586 14.1 1.2 8.2 11 18000 4.7 6.9 497
4/21/10 CPT 3960 9.1 0.6 9.8 471 9.7 0.7 5.6 6.8 11300 3.7 5.0 293
4/21/10 CPT 3440 8.1 0.5 7.9 436 8.9 0.6 3.7 6.6 9240 5.0 4.4 254
4/21/10 CPT 4640 9.3 0.7 10.0 533 9.9 0.8 4.9 8.1 12800 5.1 5.6 334
6/23/2010 CPT 3,740 8.9 0.6 8.2 403 7.2 0.7 4.1 6.5 12,600 4.2 4.7 259
6/23/2010 CPT 3,790 8.3 0.5 8.6 395 7.5 0.7 4.0 6.5 13,100 3.6 4.4 253
10/11/2010 CPT 4,520 8.5 0.5 10.4 409 9.4 0.9 3.2 8.0 1,480 5.3 4.2 254
6/6/2011 CPT 6,430 17.5 0.7 14.6 559 17.2 0.8 5.2 10.3 15,400 11.7 5.3 349
6/6/2011 CPT 4,820 19.2 0.7 10.1 561 14.4 0.1 5.1 8.0 13,200 13.0 5.1 330
6/6/2011 CPT 5,200 15.7 0.7 10.6 562 13.3 0.6 4.5 8.1 13,900 9.8 5.5 334
7/26/2011 CPT 3,480 14.6 0.5 10.6 415 14.0 0.6 4.8 7.9 10,100 8.7 4.0 263
7/26/2011 CPT 4,740 16.4 0.7 12.1 495 13.3 0.9 4.4 8.3 12,500 10.0 5.0 312
10/10/2011 CPT 5,070 12.7 0.7 15.4 503 12.9 0.7 3.7 10.6 14,200 6.5 5.0 332
5/3/2012 CPT 2,500 13.9 0.6 10.3 399 7.6 0.7 4.5 6.6 9,890 8.3 2.7 258
5/3/2012 CPT 2,510 13.5 0.6 11.4 404 8.5 0.7 4.2 6.9 9,640 7.1 2.7 259
5/3/2012 CPT 3,150 16.4 0.7 18.1 478 9.6 0.6 5.1 7.7 11,600 6.1 3.4 311
8/14/2012 CPT 3,820 12.3 0.8 13.8 466 13.0 0.8 3.8 8.7 14,500 7.5 3.7 316
8/14/2012 CPT 4,200 12.6 0.7 14.5 472 12.9 0.8 4.0 8.8 15,400 7.3 3.8 325
8/14/2012 CPT 4,030 4.9 0.2 8.0 22.9 8.2 0.2 0.9 4.3 1,630 2.8 0.2 71.7
5/14/2013 CPT 2,550 14.7 0.6 7.6 464 10.9 0.4 3.8 6.8 10,200 7.1 3.3 266
6/27/2013 CPT 4,250 15.1 0.6 13.7 474 13.3 0.8 3.9 8.9 19,900 6.7 2.9 318
6/27/2013 CPT 3,400 12.6 0.7 11.8 502 25.4 0.3 3.8 8.1 13,400 6.6 3.5 337
6/27/2013 CPT 3,290 14.3 0.6 10.7 407 10.5 0.1 3.4 7.3 15,400 6.2 2.6 278
10/8/2013 CPT 2,390 10.8 0.5 9.5 392 8.5 0.8 4.3 7.0 9,390 3.1 2.6 254
10/8/2013 CPT 1,730 10.1 0.4 6.7 317 7.3 0.4 3.1 5.4 7,410 5.2 1.9 186
5/22/2014 CPT 1,510 5.8 0.3 5.1 303 5.5 0.5 3.2 2.2 7,160 3.1 1.9 220
5/22/2014 CPT 1,300 4.9 0.3 4.7 273 4.8 0.5 3.3 4.4 6,330 2.8 1.5 179
5/22/2014 CPT 1,720 4.4 0.4 5.5 300 6.0 0.5 4.5 5.2 7,460 3.0 1.6 202
6/9/2014 CPT 2,970 7.2 0.5 10.0 397 12.7 0.6 4.2 8.0 11,500 1.8 1.9 261
10/20/2014 CPT 494 6.3 0.2 2.6 174 3.8 0.8 2.9 4.1 7,920 1.7 0.6 102
10/20/2014 CPT 677 4.3 0.1 2.8 167 3.6 1.1 2.8 3.3 5,360 1.1 0.8 100
5/11/2015 CPT 821 2.6 0.3 4.1 172 9.5 0.2 1.7 3.0 4,530 1.8 0.4 138
5/11/2015 CPT 1,250 3.5 0.4 9.6 277 7.7 0.3 2.6 7.6 6,620 3.7 1.2 189
5/11/2015 CPT 1,260 3.9 0.4 5.1 298 6.8 0.3 2.9 4.3 5,370 2.5 1.1 180
5/11/2015 CPT 1,410 4.7 0.4 5.2 304 7.5 0.3 3.1 4.6 8,184 3.2 1.1 211
10/1/2015 CPT 3,550 7.1 0.5 10.9 408 10.1 0.5 3.4 8.6 10,500 1.9 1.0 292
10/1/2015 CPT 2,540 7.3 0.5 13.8 474 11.5 0.5 4.4 8.5 11,000 2.0 1.9 328
9/28/2016 CPT 2,610 8.4 0.7 7.2 377 9.6 0.1 3.3 6.8 6,920 3.7 0.7 209
9/28/2016 CPT 2,420 10.0 1.0 13.1 300 10.0 0.1 1.0 10.9 7,310 15.8 1.0 198
9/28/2016 CPT 2,610 7.6 0.8 9.3 368 9.1 0.2 2.1 7.6 8,960 3.8 0.8 274
9/28/2016 CPT 1,790 7.2 0.7 6.5 258 7.2 0.3 1.9 5.3 8,110 3.6 0.7 166
9/28/2016 CPT 2,400 7.4 0.6 8.8 352 8.0 0.2 2.8 7.2 10,500 3.1 0.6 236
9/28/2016 CPT 1,730 6.6 0.7 6.7 243 6.6 0.1 2.3 5.2 6,710 3.3 0.7 169
2/22/2017 CPT 597 27.3 1.4 2.8 86.9 13.7 0.1 1.1 1.8 2,100 13.7 1.4 63.7
2/22/2017 CPT 1,390 8.8 1.4 4.9 240 4.9 0.3 6.7 4.5 8,590 13.9 0.3 305
2/22/2017 CPT 952 4.4 1.4 3.5 179 3.4 0.4 2.0 3.3 3,360 14.0 1.4 122
7/31/2017 CPT 2,590 16.7 0.3 8.7 292 5.9 0.1 3.0 6.1 7,400 12.1 0.4 223
7/31/2017 CPT 2,580 13.2 0.4 9.2 318 7.7 0.1 2.3 6.7 7,300 11.1 0.4 249
7/31/2017 CPT 3,000 13.8 0.3 9.4 293 7.9 0.1 2.5 7.8 7,280 12.5 0.4 246
2/27/2019 CPT 2,100 6.4 0.3 6.5 276 4.0 0.3 2.8 5.3 7,640 5.9 0.5 122
2/27/2019 CPT 2,940 7.1 0.4 16.0 411 <8.49 0.3 4.4 7.3 10,200 8.6 0.6 187
3/12/2019 CPT 2,130 9.2 0.3 7.8 355 <5.59 0.2 3.6 6.8 11,800 0.6 0.8 185
3/12/2019 CPT 2,560 9.7 0.3 9.0 424 <6.83 0.2 4.0 9.2 13,100 1.2 0.8 205
6/18/2019 CPT 3,920 7.6 0.4 7.3 399 35.5 0.2 3.5 6.7 10,800 5.0 0.6 233
7/25/2019 CPT 3,460 4.9 0.3 4.7 295 15.7 0.2 5.9 5.6 9,070 1.3 0.3 194
5/14/2020 CPT 1,570 6.1 0.3 6.0 276 7.2 0.1 4.0 5.0 10,200 3.4 0.5 176
5/14/2020 CPT 2,240 6.5 0.3 7.7 328 9.7 0.1 3.2 6.1 11,000 2.4 0.6 234
5/14/2020 CPT 2,850 6.3 0.3 7.8 330 12.1 0.1 3.4 6.1 10,100 2.4 0.6 232
5/14/2020 CPT 2,810 7.8 0.4 9.6 378 16.6 0.1 4.2 7.2 12,900 2.8 0.8 257
6/1/2020 CPT 1,450 4.6 0.2 4.9 232 6.4 0.1 3.1 4.8 7,930 2.0 0.4 150
6/1/2020 CPT 2,440 5.6 0.3 4.5 315 12.2 0.1 3.8 6.4 10,500 2.2 0.7 227
3/29/2021 CPT 9,507 10.1 0.3 9.4 434 10.9 0.0 3.9 7.0 13,700 2.7 0.8 343
3/29/2021 CPT 10,800 9.8 0.3 10.4 449 10.5 0.2 5.0 8.6 13,600 2.1 0.8 352
11/14/2022 11:33 AM
C:\Users\Owner\OneDrive\BIOSOLIDS Files\Biosolids - Consolidated Data\Biosolids Report - Calendar Year 2022\5. Compost Biosolids Chemical Quality\Compost
Biosolids Metals Summary - 2022
Central Davis Sewer District
Composted Biosolids - Historic Table
Aluminum Arsenic Cadmium Chromium Copper Lead Mercury Molyb Nickel Phosphr Selenium Silver Zinc
Date #ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm
3/29/2021 CPT 11,100 6.5 0.2 9.9 393 9.4 0.0 4.5 6.8 13,500 4.1 0.8 313
3/29/2021 CPT 10,600 8.3 0.2 10.1 416 16.1 0.1 4.6 6.4 14,500 3.5 0.8 321
3/29/2021 CPT 7,110 6.2 ND 6.7 349 7.6 0.1 3.3 7.0 10,300 3.6 0.5 257
3/29/2021 CPT 10,500 7.6 0.2 7.8 409 9.1 0.1 5.1 6.3 14,600 3.6 0.4 309
3/28/2022 CPT 10,100 6.8 0.2 6.6 352 6.8 0.1 3.9 4.8 14,100 2.7 0.5 291
3/28/2022 CPT 10,500 8.0 0.2 7.3 372 8.0 0.1 3.4 5.5 11,600 2.7 0.5 316
3/28/2022 CPT 11,900 9.4 0.3 8.6 434 7.6 0.1 4.0 5.7 18,800 3.9 0.7 320
3/28/2022 CPT 10,200 8.9 0.2 9.9 422 4.5 0.2 5.4 6.5 18,600 3.3 0.6 304
3/28/2022 CPT 6,630 5.5 0.1 5.3 292 4.1 0.1 4.0 3.9 9,810 2.9 0.5 205
3/28/2022 CPT 6870 5.7 0.1 5.7 306 5.2 0.1 3.4 4.5 10200 3.2 0.4 219
average 6,872 8.0 0.6 11.0 373 14.4 1.1 4.0 8.3 12,641 5.5 5.2 265
Std. Dev. 4,607 3.9 0.5 4.5 104 12.2 1.1 1.8 2.8 4,473 3.6 4.2 74
Avg-2StDv 0 0.2 0.0 2.0 166 0.0 0.0 0.5 2.7 3,695 0.0 0.0 117
Avg+2StDv 16,085 15.8 1.7 20.1 581 38.8 3.3 7.5 13.9 21,586 12.8 13.6 412
Note: 1. When a value was found to be below the detection limit, the whole number of the detection limit was used in the analysis.
2. An ** indicates that the value has not been used because of suspect integrity
11/14/2022 11:33 AM
C:\Users\Owner\OneDrive\BIOSOLIDS Files\Biosolids - Consolidated Data\Biosolids Report - Calendar Year 2022\5. Compost Biosolids Chemical Quality\Compost
Biosolids Metals Summary - 2022
Central Davis Sewer District
Composted Biosolids
Aluminum Quality Control Chart
0.0
5,000.0
10,000.0
15,000.0
20,000.0
25,000.0
30,000.0
35,000.0
1 21416181101121141
Aluminum LCL UCL Linear (Aluminum)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Al QC Chart
Central Davis Sewer District
Composted Biosolids
Arsenic Quality Control Chart
0
5
10
15
20
25
30
1 21416181101121141
Arsenic LCL UCL Linear (Arsenic)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 As QC Chart
Central Davis Sewer District
Composted Biosolids
Cadmium Quality Control Chart
0
1
2
3
4
5
6
7
1 21416181101121141
Cadmium LCL UCL Linear (Cadmium)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Cd QC Chart
Central Davis Sewer District
Composted Biosolids
Chromium Quality Control Chart
0
5
10
15
20
25
30
35
1 21416181101121141
Chromium LCL UCL Linear (Chromium)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Cr QC Chart
Central Davis Sewer District
Composted Biosolids
Copper Quality Control Chart
0
100
200
300
400
500
600
700
1 21416181101121141
Copper LCL UCL Linear (Copper)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Cu QC Chart
Central Davis Sewer District
Composted Biosolids
Lead Quality Control Chart
0
20
40
60
80
100
120
140
1 21416181101121141
Lead LCL UCL Linear (Lead)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Pb QC Chart
Central Davis Sewer District
Composted Biosolids
Mercury Quality Control Chart
‐1
0
1
2
3
4
5
6
7
1 21416181101121141
Mercury LCL UCL Linear (Mercury)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Hg QC Chart
Central Davis Sewer District
Composted Biosolids
Molybdenum Quality Control Chart
0
2
4
6
8
10
12
14
16
1 21416181101121141
Molybdenum LCL UCL Linear (Molybdenum)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Mo QC Chart
Central Davis Sewer District
Composted Biosolids
Nickel Quality Control Chart
0
2
4
6
8
10
12
14
16
18
1 21416181101121141
Nickel LCL UCL Linear (Nickel)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Ni QC Chart
Central Davis Sewer District
Composted Biosolids
Selenium Quality Control Chart
0
2
4
6
8
10
12
14
16
18
20
1 21416181101121141
Selenium LCL UCL Linear (Selenium)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Se QC Chart
Central Davis Sewer District
Composted Biosolids
Silver Quality Control Chart
‐5
0
5
10
15
20
25
30
1 21416181101121141
Silver LCL UCL Linear (Silver)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Ag QC Chart
Central Davis Sewer District
Composted Biosolids
Zinc Quality Control Chart
0
100
200
300
400
500
600
1 21416181101121141
Zinc LCL UCL Linear (Zinc)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Zn QC Chart
Central Davis Sewer District
Composted Biosolids
Phosphorus Quality Control Chart
0.0
5,000.0
10,000.0
15,000.0
20,000.0
25,000.0
30,000.0
1 21416181101121141
Phosphorus LCL UCL Linear (Phosphorus)
11/14/2022 11:33 AM
Compost Biosolids Metals Summary - 2022 Phos QC Chart
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Central Davis Sewer District
Attn: Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
Work Order: 21C1580
Project: [none]
4/7/2021
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
3/30/21 11:00 @ 1.4 °C
4/7/2021
[none]
Sample ID: Compost #1
Lab ID: 21C1580-01Matrix: Solid Sample Type: Grab
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/29/21 9:17
Preparation
Date/Time
Sampled By: Manjot Masson/Jace Woodrow
Minimum
Reporting
Limit MethodResult
Inorganic
mg/kg dry 4/5/214/5/2188.8 SM 4500 NH3 H2200Ammonia (Soluble) as N
mg/kg dry 4/6/214/6/218.9 EPA 300.0284Nitrate, Soluble
mg/kg dry 4/6/214/6/218.9 EPA 300.014.8Nitrite, Soluble
mg/kg dry 4/6/214/6/214720SM 4500 Norg21900Total Kjeldahl Nitrogen
%3/30/213/30/210.1 SM 2540G56.3Total Solids
Metals
mg/kg dry 4/2/214/1/2117.3 EPA 6010B9570Aluminum, Total
mg/kg dry J4/2/214/1/2117.3 EPA 6010B10.1Arsenic, Total
mg/kg dry J4/2/214/1/210.863 EPA 6010B0.259Cadmium, Total
mg/kg dry 4/2/214/1/210.863 EPA 6010B9.36Chromium, Total
mg/kg dry 4/2/214/1/210.863 EPA 6010B434Copper, Total
mg/kg dry 4/2/214/1/218.63 EPA 6010B10.9Lead, Total
mg/kg dry J4/5/214/2/210.05 EPA 7471A0.03Mercury, Total
mg/kg dry 4/2/214/1/211.73 EPA 6010B3.88Molybdenum, Total
mg/kg dry 4/2/214/1/210.863 EPA 6010B6.99Nickel, Total
mg/kg dry 4/2/214/1/2186.3 EPA 6010B13700Phosphorus, Total as P
mg/kg dry J4/2/214/1/218.63 EPA 6010B2.74Selenium, Total
mg/kg dry J4/2/214/1/210.863 EPA 6010B0.777Silver, Total
mg/kg dry 4/2/214/1/211.73 EPA 6010B343Zinc, Total
Project Name: [none]CtF WO#: 21C1580
www.ChemtechFord.com Page 2 of 9Page 2 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
3/30/21 11:00 @ 1.4 °C
4/7/2021
[none]
Sample ID: Compost #2
Lab ID: 21C1580-02Matrix: Solid Sample Type: Grab
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/29/21 9:17
Preparation
Date/Time
Sampled By: Manjot Masson/Jace Woodrow
Minimum
Reporting
Limit MethodResult
Inorganic
mg/kg dry 4/5/214/5/2191.6 SM 4500 NH3 H2260Ammonia (Soluble) as N
mg/kg dry 4/6/214/6/211.8 EPA 300.033.2Nitrate, Soluble
mg/kg dry 4/6/214/6/211.8 EPA 300.055.4Nitrite, Soluble
mg/kg dry 4/6/214/6/214720SM 4500 Norg20700Total Kjeldahl Nitrogen
%3/30/213/30/210.1 SM 2540G54.6Total Solids
Metals
mg/kg dry 4/7/214/6/2116.8 EPA 6010B10800Aluminum, Total
mg/kg dry J4/7/214/6/2116.8 EPA 6010B9.75Arsenic, Total
mg/kg dry J4/7/214/6/210.839 EPA 6010B0.285Cadmium, Total
mg/kg dry 4/7/214/6/210.839 EPA 6010B10.4Chromium, Total
mg/kg dry 4/7/214/6/210.839 EPA 6010B449Copper, Total
mg/kg dry 4/7/214/6/218.39 EPA 6010B10.5Lead, Total
mg/kg dry 4/5/214/2/210.05 EPA 7471A0.20Mercury, Total
mg/kg dry 4/7/214/6/211.68 EPA 6010B5.00Molybdenum, Total
mg/kg dry 4/7/214/6/210.839 EPA 6010B8.60Nickel, Total
mg/kg dry 4/7/214/6/2183.9 EPA 6010B13600Phosphorus, Total as P
mg/kg dry 4/7/214/6/218.39 EPA 6010BNDSelenium, Total
mg/kg dry J4/7/214/6/210.839 EPA 6010B0.772Silver, Total
mg/kg dry 4/7/214/6/211.68 EPA 6010B352Zinc, Total
Project Name: [none]CtF WO#: 21C1580
www.ChemtechFord.com Page 3 of 9Page 3 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
3/30/21 11:00 @ 1.4 °C
4/7/2021
[none]
Sample ID: Compost #3
Lab ID: 21C1580-03Matrix: Solid Sample Type: Grab
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/29/21 9:24
Preparation
Date/Time
Sampled By: Manjot Masson/Jace Woodrow
Minimum
Reporting
Limit MethodResult
Inorganic
mg/kg dry 4/5/214/5/2184.3 SM 4500 NH3 H2370Ammonia (Soluble) as N
mg/kg dry 4/6/214/6/211.7 EPA 300.045.1Nitrate, Soluble
mg/kg dry 4/6/214/6/211.7 EPA 300.028.2Nitrite, Soluble
mg/kg dry 4/6/214/6/214540SM 4500 Norg20600Total Kjeldahl Nitrogen
%3/30/213/30/210.1 SM 2540G59.3Total Solids
Metals
mg/kg dry 4/7/214/6/2116.0 EPA 6010B11100Aluminum, Total
mg/kg dry J4/7/214/6/2116.0 EPA 6010B6.53Arsenic, Total
mg/kg dry J4/7/214/6/210.802 EPA 6010B0.176Cadmium, Total
mg/kg dry 4/7/214/6/210.802 EPA 6010B9.85Chromium, Total
mg/kg dry 4/7/214/6/210.802 EPA 6010B393Copper, Total
mg/kg dry 4/7/214/6/218.02 EPA 6010B9.41Lead, Total
mg/kg dry 4/5/214/2/210.05 EPA 7471ANDMercury, Total
mg/kg dry 4/7/214/6/211.60 EPA 6010B4.51Molybdenum, Total
mg/kg dry 4/7/214/6/210.802 EPA 6010B6.77Nickel, Total
mg/kg dry 4/7/214/6/2180.2 EPA 6010B13500Phosphorus, Total as P
mg/kg dry J4/7/214/6/218.02 EPA 6010B4.09Selenium, Total
mg/kg dry J4/7/214/6/210.802 EPA 6010B0.786Silver, Total
mg/kg dry 4/7/214/6/211.60 EPA 6010B313Zinc, Total
Project Name: [none]CtF WO#: 21C1580
www.ChemtechFord.com Page 4 of 9Page 4 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
3/30/21 11:00 @ 1.4 °C
4/7/2021
[none]
Sample ID: Compost #4
Lab ID: 21C1580-04Matrix: Solid Sample Type: Grab
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/29/21 9:24
Preparation
Date/Time
Sampled By: Manjot Masson/Jace Woodrow
Minimum
Reporting
Limit MethodResult
Inorganic
mg/kg dry 4/5/214/5/2184.9 SM 4500 NH3 H2250Ammonia (Soluble) as N
mg/kg dry 4/6/214/6/211.7 EPA 300.017.1Nitrate, Soluble
mg/kg dry 4/6/214/6/211.7 EPA 300.011.0Nitrite, Soluble
mg/kg dry 4/6/214/6/214510SM 4500 Norg25000Total Kjeldahl Nitrogen
%3/30/213/30/210.1 SM 2540G58.9Total Solids
Metals
mg/kg dry 4/2/214/1/2115.9 EPA 6010B10600Aluminum, Total
mg/kg dry J4/2/214/1/2115.9 EPA 6010B8.30Arsenic, Total
mg/kg dry J4/2/214/1/210.794 EPA 6010B0.190Cadmium, Total
mg/kg dry 4/2/214/1/210.794 EPA 6010B10.1Chromium, Total
mg/kg dry 4/2/214/1/210.794 EPA 6010B416Copper, Total
mg/kg dry 4/2/214/1/217.94 EPA 6010B16.1Lead, Total
mg/kg dry 4/5/214/2/210.49 EPA 7471ANDMercury, Total
mg/kg dry 4/2/214/1/211.59 EPA 6010B4.64Molybdenum, Total
mg/kg dry 4/2/214/1/210.794 EPA 6010B6.35Nickel, Total
mg/kg dry 4/2/214/1/2179.4 EPA 6010B14500Phosphorus, Total as P
mg/kg dry J4/2/214/1/217.94 EPA 6010B3.46Selenium, Total
mg/kg dry J4/2/214/1/210.794 EPA 6010B0.778Silver, Total
mg/kg dry 4/2/214/1/211.59 EPA 6010B321Zinc, Total
Project Name: [none]CtF WO#: 21C1580
www.ChemtechFord.com Page 5 of 9Page 5 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
3/30/21 11:00 @ 1.4 °C
4/7/2021
[none]
Sample ID: Compost #5
Lab ID: 21C1580-05Matrix: Solid Sample Type: Grab
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/29/21 9:36
Preparation
Date/Time
Sampled By: Manjot Masson/Jace Woodrow
Minimum
Reporting
Limit MethodResult
Inorganic
mg/kg dry 4/5/214/5/2178.4 SM 4500 NH3 H2400Ammonia (Soluble) as N
mg/kg dry 4/6/214/6/211.6 EPA 300.0117Nitrate, Soluble
mg/kg dry 4/6/214/6/211.6 EPA 300.020.5Nitrite, Soluble
mg/kg dry 4/6/214/6/213870SM 4500 Norg19400Total Kjeldahl Nitrogen
%3/30/213/30/210.1 SM 2540G63.8Total Solids
Metals
mg/kg dry 4/2/214/1/2114.6 EPA 6010B7110Aluminum, Total
mg/kg dry J4/2/214/1/2114.6 EPA 6010B6.22Arsenic, Total
mg/kg dry 4/2/214/1/210.732 EPA 6010BNDCadmium, Total
mg/kg dry 4/2/214/1/210.732 EPA 6010B6.67Chromium, Total
mg/kg dry 4/2/214/1/210.732 EPA 6010B349Copper, Total
mg/kg dry 4/2/214/1/217.32 EPA 6010B7.59Lead, Total
mg/kg dry 4/5/214/2/210.04 EPA 7471A0.10Mercury, Total
mg/kg dry 4/2/214/1/211.46 EPA 6010B3.28Molybdenum, Total
mg/kg dry 4/2/214/1/210.732 EPA 6010B6.98Nickel, Total
mg/kg dry 4/2/214/1/2173.2 EPA 6010B10300Phosphorus, Total as P
mg/kg dry J4/2/214/1/217.32 EPA 6010B3.61Selenium, Total
mg/kg dry J4/2/214/1/210.732 EPA 6010B0.512Silver, Total
mg/kg dry 4/2/214/1/211.46 EPA 6010B257Zinc, Total
Project Name: [none]CtF WO#: 21C1580
www.ChemtechFord.com Page 6 of 9Page 6 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
3/30/21 11:00 @ 1.4 °C
4/7/2021
[none]
Sample ID: Compost #6
Lab ID: 21C1580-06Matrix: Solid Sample Type: Grab
Flag(s)Units
Analysis
Date/Time
Date Sampled: 3/29/21 9:36
Preparation
Date/Time
Sampled By: Manjot Masson/Jace Woodrow
Minimum
Reporting
Limit MethodResult
Inorganic
mg/kg dry 4/5/214/5/2178.1 SM 4500 NH3 H2100Ammonia (Soluble) as N
mg/kg dry 4/6/214/6/2115.6 EPA 300.0221Nitrate, Soluble
mg/kg dry 4/6/214/6/211.6 EPA 300.011.5Nitrite, Soluble
mg/kg dry 4/6/214/6/214390SM 4500 Norg17800Total Kjeldahl Nitrogen
%3/30/213/30/210.1 SM 2540G64.0Total Solids
Metals
mg/kg dry 4/2/214/1/2113.9 EPA 6010B10500Aluminum, Total
mg/kg dry J4/2/214/1/2113.9 EPA 6010B7.62Arsenic, Total
mg/kg dry J4/2/214/1/210.696 EPA 6010B0.209Cadmium, Total
mg/kg dry 4/2/214/1/210.696 EPA 6010B7.83Chromium, Total
mg/kg dry 4/2/214/1/210.696 EPA 6010B409Copper, Total
mg/kg dry 4/2/214/1/216.96 EPA 6010B9.13Lead, Total
mg/kg dry 4/5/214/2/210.04 EPA 7471A0.05Mercury, Total
mg/kg dry 4/2/214/1/211.39 EPA 6010B5.07Molybdenum, Total
mg/kg dry 4/2/214/1/210.696 EPA 6010B6.31Nickel, Total
mg/kg dry 4/2/214/1/2169.6 EPA 6010B14600Phosphorus, Total as P
mg/kg dry J4/2/214/1/216.96 EPA 6010B3.62Selenium, Total
mg/kg dry J4/2/214/1/210.696 EPA 6010B0.376Silver, Total
mg/kg dry 4/2/214/1/211.39 EPA 6010B309Zinc, Total
Project Name: [none]CtF WO#: 21C1580
www.ChemtechFord.com Page 7 of 9Page 7 of 10
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
3/30/21 11:00 @ 1.4 °C
4/7/2021
[none]
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
J = Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
Project Name: [none]CtF WO#: 21C1580
www.ChemtechFord.com Page 8 of 9Page 8 of 10
Page 9 of 10
Page 10 of 10
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Central Davis Sewer District
Attn: Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
Work Order: 22K1881
Project: TCLP Annual
12/8/2022
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 4
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
11/23/22 13:00 @ 4.3 °C
12/8/2022
TCLP Annual
Sample ID: Aerobic
Lab ID: 22K1881-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 11/17/22 9:54
Preparation
Date/Time
Sampled By: Nate Cloward
Minimum
Reporting
Limit MethodResult
TCLP Metals
mg/L 11/30/2211/29/220.50 EPA 6010BNDArsenic, TCLP
mg/L 11/30/2211/29/220.20 EPA 6010BNDBarium, TCLP
mg/L 11/30/2211/29/220.050 EPA 6010BNDCadmium, TCLP
mg/L 11/30/2211/29/220.050 EPA 6010BNDChromium, TCLP
mg/L 11/30/2211/29/220.20 EPA 6010BNDLead, TCLP
mg/L 11/30/2211/30/220.0020 EPA 7470ANDMercury, TCLP
mg/L 11/30/2211/29/220.50 EPA 6010BNDSelenium, TCLP
mg/L 11/30/2211/29/220.05 EPA 6010BNDSilver, TCLP
TCLP Volatile Organic Compounds
mg/L 11/29/2211/29/220.25 EPA 8260D/1311/5030AND1,1-Dichloroethylene, TCLP
mg/L 11/29/2211/29/220.25 EPA 8260D/1311/5030AND1,2-Dichloroethane, TCLP
mg/L 11/29/2211/29/220.25 EPA 8260D/1311/5030AND1,4-Dichlorobenzene, TCLP
mg/L 11/29/2211/29/220.25 EPA 8260D/1311/5030ANDBenzene, TCLP
mg/L 11/29/2211/29/220.25 EPA 8260D/1311/5030ANDCarbon Tetrachloride, TCLP
mg/L 11/29/2211/29/220.25 EPA 8260D/1311/5030ANDChlorobenzene, TCLP
mg/L 11/29/2211/29/220.25 EPA 8260D/1311/5030ANDChloroform, TCLP
mg/L 11/29/2211/29/220.25 EPA 8260D/1311/5030ANDHexachlorobutadiene, TCLP
mg/L 11/29/2211/29/220.50 EPA 8260D/1311/5030ANDMethyl Ethyl Ketone, TCLP
mg/L 11/29/2211/29/220.25 EPA 8260D/1311/5030ANDTetrachloroethylene, TCLP
mg/L 11/29/2211/29/220.25 EPA 8260D/1311/5030ANDTrichloroethylene, TCLP
mg/L 11/29/2211/29/220.20 EPA 8260D/1311/5030ANDVinyl Chloride, TCLP
TCLP Semi-Volatile Compounds
mg/L 11/29/2211/29/220.10 EPA 8270E/1311/3511ND1,4-Dichlorobenzene
mg/L 11/29/2211/29/220.10 EPA 8270E/1311/3511ND2,4,5-Trichlorophenol
mg/L 11/29/2211/29/220.10 EPA 8270E/1311/3511ND2,4,6-Trichlorophenol
mg/L 11/29/2211/29/220.10 EPA 8270E/1311/3511ND2,4-Dinitrotoluene
mg/L 11/29/2211/29/220.10 EPA 8270E/1311/3511ND2-Methylphenol
mg/L J-High11/29/2211/29/220.10 EPA 8270E/1311/35112.363 & 4-Methylphenol
mg/L 11/29/2211/29/220.10 EPA 8270E/1311/3511NDHexachlorobenzene
mg/L 11/29/2211/29/220.10 EPA 8270E/1311/3511NDHexachlorobutadiene
mg/L 11/29/2211/29/220.10 EPA 8270E/1311/3511NDHexachloroethane
mg/L 11/29/2211/29/220.10 EPA 8270E/1311/3511NDNitrobenzene
mg/L 11/29/2211/29/220.10 EPA 8270E/1311/3511NDPentachlorophenol
mg/L J-LOW-L11/29/2211/29/220.10 EPA 8270E/1311/3511NDPyridine
Project Name: TCLP Annual CtF WO#: 22K1881
www.ChemtechFord.com Page 2 of 4Page 2 of 4
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Central Davis Sewer District
Jill Jones
2200 South Sunset Drive
Kaysville, UT 84037
PO#:
Receipt:
Date Reported:
Project Name:
11/23/22 13:00 @ 4.3 °C
12/8/2022
TCLP Annual
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
J-High = Estimated High due to high recovery of LCS or CCV
J-LOW-L = Estimated low due to low recovery of LCS
Project Name: TCLP Annual CtF WO#: 22K1881
www.ChemtechFord.com Page 3 of 4Page 3 of 4
X X X
Page 4 of 4
Pathogen Reduction
Compliance Documentation 1.2022 Digester Temperatures2.2022 Digester HRT Calculations3.Class A Compost Testing-
.Salmonella4.Class A Time, Temperature and
.Turning
Central Davis Sewer District
Anaerobic Biosolids Digestion Temperatures - 2022
Day P1 P2 P1 P2 P1 P2 P1 P2 P1 P2 P1 P2 P1 P2 P1 P2 P1 P2 P1 P2 P1 P2 P1 P2
1 102 100 102 102 102 101 101 100 101 100 102 100 101 100 101 101 101 101 101 100 102 101 100 100
2 101 100 102 100 102 102 102 101 102 101 102 100 100 100 102 102 102 101 101 101 101 101 101 101
3 103 101 102 101 102 101 102 101 102 100 100 100 101 101 101 101 102 102 101 101 101 100 102 102
4 102 100 102 101 100 100 102 100 102 100 102 99 100 100 102 102 102 102 101 101 103 102 100 101
5 102 100 102 100 101 100 102 101 102 100 102 99 101 99 100 102 102 102 101 102 102 101 102 102
6 102 102 104 100 101 101 103 100 102 100 101 98 100 98 101 101 101 101 102 102 102 101 103 102
7 101 100 102 100 103 102 102 100 101 99 102 99 100 99 102 102 101 100 102 100 100 100 101 101
8 101 100 104 100 102 101 103 101 102 100 101 100 101 99 101 102 101 101 101 100 100 100 103 102
9 102 101 102 101 101 101 101 100 103 101 100 99 100 99 102 102 100 101 102 100 101 101 101 102
10 102 100 102 100 102 101 101 101 102 100 102 99 102 99 101 102 100 101 101 100 102 102 102 102
11 102 100 103 100 102 102 102 100 102 100 101 99 102 99 102 102 102 101 101 100 103 101 101 101
12 104 100 101 101 101 102 101 100 102 100 100 100 100 99 101 102 102 101 100 100 103 101 102 100
13 102 101 101 101 102 101 102 100 103 100 100 100 100 99 100 104 101 102 100 100 104 102 102 102
14 102 101 102 101 103 101 101 100 102 100 100 100 100 99 101 105 101 101 100 100 103 102 102 102
15 100 100 102 100 102 101 101 100 101 100 100 100 101 100 102 102 101 101 100 100 103 102 102 102
16 102 100 102 100 102 100 102 100 101 100 100 100 101 101 102 104 102 101 100 101 103 102 102 102
17 100 100 102 100 102 101 101 100 101 100 103 99 102 102 101 102 101 100 100 102 103 102 103 102
18 100 100 102 100 101 101 102 100 101 100 103 99 101 100 102 104 100 100 101 102 102 101 102 102
19 102 100 104 102 102 101 100 100 102 100 100 98 100 100 102 102 102 100 102 102 103 102 102 102
20 103 100 102 101 100 101 100 100 102 100 100 100 101 100 102 102 101 100 102 101 104 102 102 102
21 102 100 101 101 102 101 101 100 102 102 100 100 100 102 102 102 101 100 102 101 102 101 101 101
22 103 101 102 100 102 101 100 100 102 102 102 100 102 102 102 102 100 100 101 102 102 101 101 101
23 101 101 102 101 102 100 101 100 102 101 102 100 102 101 101 101 101 101 101 101 101 100 101 102
24 102 100 102 101 103 100 102 101 101 100 101 99 100 101 102 101 101 101 102 102 101 101 101 101
25 102 101 102 102 102 101 103 101 102 101 102 100 100 101 101 101 101 101 101 101 101 100 102 102
26 103 100 102 101 102 100 102 100 102 101 101 100 102 100 101 101 102 100 101 101 101 100 102 101
27 102 100 102 102 100 100 102 100 101 100 100 100 102 102 101 101 101 100 102 102 100 101 102 100
28 102 100 101 100 100 100 103 101 100 100 100 100 101 101 102 101 101 100 102 102 100 101 102 100
29 101 100 102 100 103 101 100 100 101 100 101 102 102 102 102 100 102 102 102 101 102 100
30 101 101 103 100 103 101 101 100 100 100 101 102 102 101 102 100 101 101 101 101 102 100
31 103 101 102 100 103 100 102 102 102 102 103 103 100 100
Average 102 100 102 101 102 101 102 100 102 100 101 100 101 100 101 102 101 101 101 101 102 101 102 101
Deg C 39 38 39 38 39 38 39 38 39 38 38 38 38 38 39 39 38 38 38 38 39 38 39 38
Note: Primary Digester 1 and 2 - Values are estimated on April 29
DEC JUN JAN FEB MAR APR MAY JUL AUG SEP OCT NOV
https://d.docs.live.net/98ae734ac05258f0/BIOSOLIDS Files/Biosolids - Consolidated Data/Biosolids Report - Calendar Year 2022/6. Pathogen Reduction/Digester HRT and
Temps/Digester Temperatures - 2022
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
2 min
Per 60 min
4 min
Per 60 min
48.00 min/day
96.00 min/day
12,960         gal/day
39.3 Days
Active Storage 207,944      gallons
16.0 Days
55.3 DaysTotal Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
3/12/2020-2/28/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3 min
Per 60 min
5.5 min
Per 60 min
72.00 min/day
132.00 min/day
18,360         gal/day
27.7 Days
Active Storage 207,944      gallons
11.3 Days
39.1 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
2/28/2022-5/1/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3.5 min
Per 60 min
4 min
Per 60 min
84.00 min/day
96.00 min/day
16,200         gal/day
31.4 Days
Active Storage 207,944      gallons
12.8 Days
44.3 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
5/1/2022-5/4/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3 min
Per 60 min
5 min
Per 60 min
72.00 min/day
120.00 min/day
17,280         gal/day
29.5 Days
Active Storage 207,944      gallons
12.0 Days
41.5 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
5/4/2022-6/13/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3 min
Per 60 min
3 min
Per 60 min
72.00 min/day
72.00 min/day
12,960         gal/day
39.3 Days
Active Storage 207,944      gallons
16.0 Days
55.3 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
6/13/2022-6/17/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3 min
Per 60 min
3 min
Per 60 min
72.00 min/day
72.00 min/day
12,960         gal/day
39.3 Days
Active Storage 207,944      gallons
16.0 Days
55.3 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
6/17/2022-7/11/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3 min
Per 60 min
5 min
Per 60 min
72.00 min/day
120.00 min/day
17,280         gal/day
29.5 Days
Active Storage 207,944      gallons
12.0 Days
41.5 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
7/11/2022-8/15/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3 min
Per 60 min
4.5 min
Per 60 min
72.00 min/day
108.00 min/day
16,200         gal/day
31.4 Days
Active Storage 207,944      gallons
12.8 Days
44.3 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
8/15/2022-9/10/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3 min
Per 60 min
2 min
Per 60 min
72.00 min/day
48.00 min/day
10,800         gal/day
47.1 Days
Active Storage 207,944      gallons
19.3 Days
66.4 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
9/10/2022-9/17/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3 min
Per 60 min
3 min
Per 60 min
72.00 min/day
72.00 min/day
12,960         gal/day
39.3 Days
Active Storage 207,944      gallons
16.0 Days
55.3 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
9/17/2022-10/10/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3.5 min
Per 60 min
6 min
Per 60 min
84.00 min/day
144.00 min/day
20,520         gal/day
24.8 Days
Active Storage 207,944      gallons
10.1 Days
34.9 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
10/10/2022-12/11/2022
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Digester 1 27,800         ft cubed
Digester 2 43,100         ft cubed
70,900         ft cubed
7.48 gal/ft cubed
530,332      gallons
4%
509,119      gallons
90 gpm
90 gpm
3.5 min
Per 60 min
6 min
Per 60 min
84.00 min/day
144.00 min/day
20,520         gal/day
24.8 Days
Active Storage 207,944      gallons
10.1 Days
34.9 Days
supernating. The District does supernate so actual HRT's are longer than calculated.
Central Davis Sewer District
Digester HRT Calculations DATES
12/11/2022-present
Central Davis Sewer District Digesters HRT's are calculated as if there is no
Total Pump 1 per day
Primary Digesters ‐ Heated and Mixed ‐ Active Volume
Total Volume
Gallons Conversion
Storage Volume
Dead Storage - 1 foot
Active Storage
Daily Pumping Rate ‐ Plunger Pumps
Pump Rate 1
Pump Rate 2
Pump 1 time
Pump 2 time
Total Digester HRT
Total Pump 2 per day
Total Pump Volume
Primary Digester HRT
Hydraulic Residence
Secondary Digester HRT - Unheated
Hydraulic Residence
Central Davis Sewer District
Date Test # Salmonella Total Solids Date Test # Salmonella Total Solids Date Test # Salmonella Total Solids
3/28/22 Sample 1 0.30 76.9 3/28/22 Sample 1 0.20 84.0 3/28/22 Sample 1 0.20 86.1
Sample 2 0.20 81.2 Sample 2 0.20 81.3 Sample 2 0.20 83.2
Sample 3 0.20 86.5 Sample 3 0.30 79.7 Sample 3 0.20 87.0
Sample 4 0.20 80.2 Sample 4 0.30 78.5 Sample 4 0.20 89.0
Sample 5 0.30 79.5 Sample 5 0.20 80.3 Sample 5 0.20 82.0
Sample 6 0.20 80.9 Sample 6 0.20 80.8 Sample 6 0.20 85.7
Sample 7 0.20 85.2 Sample 7 0.30 79.1 Sample 7 0.20 85.7
0.20 76.9 0.20 78.5 0.20 82.0
0.23 81.5 0.24 80.5 0.20 85.5
0.30 86.5 0.30 84.0 0.20 89.0
Date Test # Salmonella Total Solids Date Test # Salmonella Total Solids Date Test # Salmonella Total Solids
3/28/22 Sample 1 0.20 84.2 3/28/22 Sample 1 0.20 81.6 3/28/22 Sample 1 0.20 81.7
Sample 2 0.30 79.0 Sample 2 0.20 81.5 Sample 2 0.20 80.6
Sample 3 0.20 80.6 Sample 3 0.30 78.1 Sample 3 0.20 80.1
Sample 4 0.20 84.0 Sample 4 0.20 80.5 Sample 4 0.20 82.6
Sample 5 0.20 87.1 Sample 5 0.30 79.0 Sample 5 0.20 83.2
Sample 6 0.20 86.6 Sample 6 0.20 83.2 Sample 6 0.20 80.3
Sample 7 0.20 86.0 Sample 7 0.20 86.1 Sample 7 0.20 83.2
0.20 79.0 0.20 78.1 0.20 80.1
0.21 83.9 0.23 81.4 0.20 81.7
0.30 87.1 0.30 86.1 0.20 83.2
Salmonella Testing Summary 2021
Minimum Minimum Minimum
Average Average Average
Maximum Maximum Maximum
Minimum Minimum Minimum
All Salmonella tests are less than the values shown above
Average Average Average
Maximum Maximum Maximum
1/13/202310:37 AM Salmonella Tests Summary 2022
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone]
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MO 3/30/2022Received 9:25
Sample ID 2579.9857 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
22022-01-84
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.3 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9858 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-01-09
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9859 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-01-45
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9860 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-01-83
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9861 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-01-07
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.3 MPN/gr dryMPN Fecal Coliform
Page 1 of 9
Richards Industrial Microbiology Laboratory, Inc
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone]
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MO 3/30/2022Received 9:25
Sample ID 2579.9862 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-01-63
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9863 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-01-29
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9864 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-02-51
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9865 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-02-28
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9866 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-02-01
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.3 MPN/gr dryMPN Fecal Coliform
Page 2 of 9
Richards Industrial Microbiology Laboratory, Inc
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone]
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MO 3/30/2022Received 9:25
Sample ID 2579.9867 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-02-78
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.3 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9868 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-02-06
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9869 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-02-56
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2579.9870 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-02-50
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.3 MPN/gr dryMPN Fecal Coliform
Page 3 of 9
Richards Industrial Microbiology Laboratory, Inc
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone]
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/30/2022Received 9:26
Sample ID 2580.9873 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-03-89
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9874 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-03-54
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9875 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-03-50
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9876 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-03-73
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9877 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-03-05
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Page 4 of 9
Richards Industrial Microbiology Laboratory, Inc
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone]
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/30/2022Received 9:26
Sample ID 2580.9878 COMPOST Receiving Temp ºC
3/28/2022 14:55Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-03-63
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9879 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-03-93
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9880 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-04-94
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9881 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-04-19
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.3 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9882 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-04-100
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Page 5 of 9
Richards Industrial Microbiology Laboratory, Inc
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone]
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/30/2022Received 9:26
Sample ID 2580.9883 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-04-82
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9884 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-04-84
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9885 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
202204-88
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2580.9886 COMPOST Receiving Temp ºC
3/28/2022 15:15Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-04-61
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Page 6 of 9
Richards Industrial Microbiology Laboratory, Inc
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone]
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/28/2022Received 9:26
Sample ID 2581.9887 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-05-58A
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9888 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-05-44
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9889 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-05-85B
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.3 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9890 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-05-21
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9891 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-05-26
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.3 MPN/gr dryMPN Fecal Coliform
Page 7 of 9
Richards Industrial Microbiology Laboratory, Inc
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone]
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/28/2022Received 9:26
Sample ID 2581.9892 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-05-73
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9893 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-05-79
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9894 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-06-02
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9895 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-06-24
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9896 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-06-33
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Page 8 of 9
Richards Industrial Microbiology Laboratory, Inc
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone]
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/28/2022Received 9:26
Sample ID 2581.9897 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-06-01
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9898 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-06-35
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
<0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9899 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-06-82
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
0.2 MPN/gr dryMPN Fecal Coliform
Sample ID 2581.9900 COMPOST Receiving Temp ºC
3/28/2022 15:30Date and Time Sample
AR AR MPN/gr dry
Lab Techs Test MRL UnitsTest Results
2022-06-22
1

01-Apr-22
30-Mar-22
01-Apr-22
Preparation
Analysis
Completed
Method Analysis Date: Time:
EPA 1681
13:00
11:00
13:00
0.2 MPN/gr dryMPN Fecal Coliform
Page 9 of 9
Richards Industrial Microbiology Laboratory, Inc
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone] Ext 134
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Phone:[phone]
Fax:[phone]
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MO 3/30/2022Received9:25
Sample ID 2579.9857 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
22022-01-84
76.86

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9858 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-01-09
81.23

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9859 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-01-45
86.48

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9860 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-01-83
80.24

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9861 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-01-07
79.54

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9862 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-01-63
80.94

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Page 1 of 9
Richards Industrial Microbiology Laboratory, Inc.
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone] Ext 134
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Phone:[phone]
Fax:[phone]
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MO 3/30/2022Received9:25
Sample ID 2579.9863 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-01-29
85.23

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9864 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-02-51
84.02

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9865 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-02-28
81.27

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9866 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-02-01
79.65

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9867 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-02-78
78.51

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9868 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-02-06
80.29

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Page 2 of 9
Richards Industrial Microbiology Laboratory, Inc.
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone] Ext 134
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Phone:[phone]
Fax:[phone]
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MO 3/30/2022Received9:25
Sample ID 2579.9869 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-02-56
80.78

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2579.9870 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-02-50
79.13

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Page 3 of 9
Richards Industrial Microbiology Laboratory, Inc.
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone] Ext 134
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Phone:[phone]
Fax:[phone]
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/30/2022Received9:26
Sample ID 2580.9873 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-03-89
86.13

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9874 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-03-54
83.15

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9875 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-03-50
87.01

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9876 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-03-73
89.03

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9877 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-03-05
81.96

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9878 COMPOST Receiving Tem ºC
28-Mar-22 14:55Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-03-63
85.74

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Page 4 of 9
Richards Industrial Microbiology Laboratory, Inc.
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone] Ext 134
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Phone:[phone]
Fax:[phone]
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/30/2022Received9:26
Sample ID 2580.9879 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-03-93
85.70

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9880 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-04-94
84.23

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9881 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-04-19
79.01

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9882 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-04-100
80.62

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9883 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-04-82
84.02

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9884 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-04-84
87.13

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Page 5 of 9
Richards Industrial Microbiology Laboratory, Inc.
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone] Ext 134
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Phone:[phone]
Fax:[phone]
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/30/2022Received9:26
Sample ID 2580.9885 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
202204-88
86.57

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2580.9886 COMPOST Receiving Tem ºC
28-Mar-22 15:15Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-04-61
86.04

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Page 6 of 9
Richards Industrial Microbiology Laboratory, Inc.
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone] Ext 134
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Phone:[phone]
Fax:[phone]
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/28/2022Received9:26
Sample ID 2581.9887 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-05-58A
81.59

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9888 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-05-44
81.45

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9889 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-05-85B
78.13

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9890 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-05-21
80.45

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9891 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-05-26
79.01

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9892 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-05-73
83.24

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Page 7 of 9
Richards Industrial Microbiology Laboratory, Inc.
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone] Ext 134
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Phone:[phone]
Fax:[phone]
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/28/2022Received9:26
Sample ID 2581.9893 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-05-79
86.06

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9894 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-06-02
81.74

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9895 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-06-24
80.56

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9896 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-06-33
80.12

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9897 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-06-01
82.61

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9898 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-06-35
83.24

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Page 8 of 9
Richards Industrial Microbiology Laboratory, Inc.
RICHARDS LABORATORIES
OF UTAH
45 North 100 East Pleasant Grove UT 84062 [phone] Ext 134
2200 SOUTH SUNSET DRIVE
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UT 84037
Phone:[phone]
Fax:[phone]
Date Report Printed Wednesday, April 6, 2022
All samples tested according to NELAP requirements
SAMPLE SITE: Sampler:MM 3/28/2022Received9:26
Sample ID 2581.9899 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-06-82
80.27

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Sample ID 2581.9900 COMPOST Receiving Tem ºC
28-Mar-22 15:30Sample Date TimGrab
% %
Lab Techs Test MRLTest Results
2022-06-22
83.21

31-Mar-22
30-Mar-22
31-Mar-22
Preparation
Analysis
Completed
13:00
Method Sample Date: Time
EPA 160.3 11:00
13:00
1ARTotal Solids
Page 9 of 9
Richards Industrial Microbiology Laboratory, Inc.

(This Page Intentionally Left Blank)
Vector Attraction Reduction
Compliance Documentation 1.
.2.
.
.
.
.
2022 Anaerobic Digester Volatile Solids Reduction Calculations Compost VAR Time and Temperature (This requirement is Met as a Part of the Windrow Time and Temperature Pathogen Reduction Requirements).
Central Davis Sewer District
2022 Biosolids Precent Solids Analysis
1st Quarter
Date % Solids %VS % Solids % VS % Solids % VS % Solids % VS
1/23/2022 19% 86% 6.5% 64.5% 4.5% 85.6% 3.0% 64.9%
Quarter
Average 19.1% 85.6% 6.5% 64.5% 4.5% 85.6% 3.0% 64.9%
2nd
Quarter
Date % Solids %VS % Solids % VS % Solids % VS % Solids % VS
4/19/2022 20% 83.3% 17.7% 62.1% 5.1% 75.9% 3.6% 61.5%
Quarter
Average 19.5% 83.3% 17.7% 62.1% 5.1% 75.9% 3.6% 61.5%
3rd Quarter
Date % Solids %VS % Solids % VS % Solids % VS % Solids % VS
7/15/2022 17.5% 81.4% 15.6% 59.4% 4.1% 75.6% 3.5% 60.3%
Quarter
Average 17.5% 81.4% 15.6% 59.4% 4.1% 75.6% 3.5% 60.3%
4th Quarter
Date % Solids %VS % Solids % VS % Solids % VS % Solids % VS
10/4/2022 18.1% 80.8% 17.8% 60.3% 3.8% 76.6% 2.5% 61.2%
Quarter
Average 18.1% 80.8% 17.8% 60.3% 3.8% 76.6% 2.5% 61.2%
Annual
Average 18.6% 82.7% 14.4% 61.6% 4.4% 78.4% 3.2% 62.0%
Aerobic Press Anaerobic &
Thickened
Primary to
Digester
Digester to
Thickening
C:\Users\Owner\OneDrive\BIOSOLIDS Files\Biosolids ‐ Consolidated Data\Biosolids Report ‐ Calendar Year 2022\7. Vector Attraction Reduction Compliance 
Documentation\Total and Volatile 2022
Central Davis Sewer District
Aerobic Biosolids
2022 Anaerobic VAR Summary
Date Volatile Solids
Reduction
1st Quarter
Date
1/23/2022 69%
Quarter Average 69%
2nd Quarter
Date
4/19/2022 49%
Quarter Average 49%
3rd Quarter
Date
7/15/2022 51%
Quarter Average 51%
4th Quarter
Date
10/4/2022 52%
Quarter Average 52%
Annual Average 55%
11/16/2022  9:48 AM
C:\Users\Owner\OneDrive\BIOSOLIDS Files\Biosolids ‐ Consolidated Data\Biosolids Report ‐ Calendar Year 2022\7. Vector Attraction Reduction Compliance 
Documentation\VSR Summary 2022
Line
1
2
3
4
5
6
7
8
9
10
Total & Volatile Solids
SM 2540 B & E
Central Davis Sewer District
SRM ID: 7_ J 07'2() -7 SRM Exp: 07/7:-;ij/'1{)1-) SRM TV:I loo SRM Limits: C-{�5" -

\

1 .. \0
Date sampled I/?..-?/t:z .. q·,.-l\ MSampled By rlo17?e-r Date Analyzed 1/2-1.9/t:i.. Analyst_�A-:f ___
In lncubtor 1h.J'sb1-10:-saA-/r\ Out Incubator [0 �1:5" /1-fJ\ 1/1-'o/1,7-In Furnac� /tM l(._,1:J./ '2-"L.Out Furnace 11:YoAM 1/1.tofn
Sample Location
Bottle#
Dish + Sample wt
Dish wt
Sample wt
Dish + Dry Sample wt
Dry Sample wt
Dish + Ash Sample wt
Ash Sample wt
Total Solids % (Ln6*100/ Ln4)
Volatile Solids% (Ln5-Ln7*100/Ln6)
SIMK SRM �(,:}r;;,(_
s� \)oi-f I
�� .L-i��lo 55', C\b''il s--2, 4laoo
So fVlL So ML ?),0'14\
s-i., /-\ s-? i 5 ts>. 0�"5l9 6-S.oLj 9 �
-o .oo-z...i O,05\,S-(),5 15q�
5'7,Y Y�O S\_g, 0�00 51.., S-Lt'-1 '2;
-u,00� '9 o, oL\�4 o,oil-\;,
[c.i\✓ c,:;,\v
-s-� /'N,;;i/1.-\.07:,u � I tq I �lo--/, L-
is--. l9� •/,
QA Check
QNQC by: -�...,:.....:W..----=-----------
Date: "L ·'2, · --z. '--
Auobc_ Pur
':)<is, C\ \'2 7
s-L..\,loJaJ
� I '2 YZ-li>
"'->'S",Y7\S-� q::,.l.4-;zw�
o.io1y
S-4,7i��
o, \ I l92,
\2-'.l/i) : 'Z..!-1\.4 l�1 <54 f
is-. '::JO f
/t-r.tAe-robr
So, �151;
4la.,7q�y
-�.�170
47JC)17l\
o.��\si.\(9,'ts't,!JI'<;.. l:-1-{j.�-�
o.o�%2.
"9 ,S-/ -JI
l9L.\,"S2 '{,
?r,M?.r,, I
:>0, Lis?€"'
SS--, O'S/ l9
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i), ,., ,,�er ..., -
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y '.) I S-1&·1
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Y 3v [o�-/0
u, i�¼
L-{�.�
010Yl9�
'7:> -0� 1,
l9-Y,�� i,
Revision 10/23/20 AM
\
12:01 PM 2/3/2022
Volatile Solids Reduction Form.xis
Central Davis Co. Sewer District
VS Reduction
Van Kleek Equation-White House Manual
FVSR = 1-VSb x (1-VSf)
VSf x (1-VSb)
!Date Tested:
Where Digester solids as a fraction Primary solids as a fraction
1-0.0935136
1-
Reduction
--.... 0--.3�0�01�1�3�6
0.31159401
0.6884
0.144
0.3506
69%
1/25/2022 i
0.6494 0.856
Line
1
2
3
4
5
6
7
8
9
10
Total & Volatile Solids
SM 2540 B & E
Central Davis Sewer District
SRM ID: 'P�o� -c;oeo SRM Exp: 7· t.-j. 1.01.s SRM TV: k:13-S M.j It-
Date sampled 1.,1-1oi -1..:L Sampled By 1Qc:,0 Date Analyzed t.-j • u- ?..-"2-
ln lncubtor¼--1..1-1.:1 .. 1i-.1.sp"" Out Incubator 1<-z.ce-2.2. D''hn-".\M. In Furnace '--i·w.·'2.-'"l. l\'1c;.,,,.,,
Sample Location
Bottle#
Dish + Sample wt
Dish wt
Sample wt
Dish + Dry Sample wt
Dry Sample wt
Dish + Ash Sample
wt
Ash Sample wt
Total Solids%
(Ln6* 100/ Ln4)
Volatile Solids%
(Ln5-Ln7*100/ Ln6)
Blank
<;1..i:.-1,s�\
iu O Ml�
s-z_. l.-lS'2?1..
O, e:,e:,c:, \
l .o mg/L
QA/QC by:
Date:
SRM
t.-{(_n. 79 82-
S0 MlS,.
l..iu. �1.(YL
6-o-ic..o
t·
i--/1..{D mg/L
QA Check
�_: Z.'is"· 'Z--Z....
Aerobic Aerobic Dup Anaerobic
\ l. \ 1-\�
u\·Ol-\to �. _bL--\C\) ( Q,0. �l-1 \
SS,OS\"is l{ t> .is\°'\ '5 l-l · �--l'::;,io
S,q'is'WZ.. l.9.. %'3UO u.3l.£Ptl
Su. 1----i.. \::, l-j l--j . '6 <SS % c;c; -'::i'2' l <a
t · llllO\S i , ·"b, 'bLQ,7 I .. \ 1..Ci '8'
c;s. 1,1.-\ 2?l-( t--;3. ,1..-1 It c;L--1 . �is�
0 . V1 Le.,t..e, () . "L 7.1.) .. f) (1 417g
(A.\✓ �Q\):::. -0 .u.c '/.
lOi, 01. 7 /. \C\ :S7 \ .. /, \7.7'bC\ '/.
�,✓ 1,?'v: -C. \C\O'/
��, \ 9;°1' /. � '3.:sl.{ 7· ,. (j'"l... \:fS. /.
SRM Limits: 315 -t..-\)50 "t) }L­
Analyst_·-;'\y.,�· �---­
Out Furnace i-/·1JJJ•Z,7.. 12 .. :'--lz.17,..,
Primary
�o
<o7 ·' �1SL\
':;7D, La�L-\1.
1, OL-11"2.-
so. 990-\
6, 3Le.,\ c,
c;o.,1 is
o.oi1'?:i
+<:M c;,\�L--\D '(.
1c;, %17 '{,
Digester
t \
u�, SO<Y--i
"5l.-j. Le7?...,7....
i. �7-CZ?....
�y.qq·-ss
o. "S'Z..i �
Sl..,I • 1 °luo
0.,1..�i
3, u zci ·,.
(_j\. !-\Li\'/,
Revision 3/17/22 AM
\
11 :52 AM 5/4/2022 Volatile Solids Reduction Form
Central Davis Co. Sewer District
VS Reduction
Van Kleek Equation-White House Manual
I Date Tested:
FVSR = 1-VSb x (1-VSf)
VSfx(1-VSb)
Where
1-
1-
Reduction
Digester solids as a fraction Primary ,solids as a fraction
0.148281669
0.292361669
0.507185738
0.4928
0.24123 0.38531
49%
4/21/20221
0.61469
0.75877
Line
1
2
3
4
5
6
7
8
9
10
SRM ID: ? 'b':)3, • �\JI
Total & Volatile Solids
SM 2540 B & E
Central Davis Sewer District
SRM Exp: �23�-i;...:....j "'....s?..:"'"':i,,'-----SRM TV: � 7'?-. Mgi(I-Date sampled , i, si z,c,z.'--Sampled By :20iu:< Date Analyzed 7. 19--z.,z,._
In lncubtor 7119.1:1/k 1:::i, ,. tDQ.e:-Out lncubator,-z.o•-z.:z.. 10: n.."'""'In Furnace .,.,1..0-1,t.. 1� ·-� q_.,.....
Sample Location
Bottle#
Dish + Sample wt
Dish wt
Sample wt
Dish + Dry Sample wt
Dry Sample wt
Dish + Ash Sample
wt
Ash Sample wt
Total Solids %
(Ln6*100/ Ln4)
Volatile Solids %
(Ln5-Ln7*100/ Ln6)
Blank
SS,'1";6-S I
Jty Ml�
9s ,c,<g C,o
-0,0C:0\
- \
mg/L
QA/QC by:
Date:
SRM
�S,OC.1. 7
6:"'\ ('v\,�.s.
<c::.. t\7r:..\Ul
o .o--z..,q
i--13 ?.( mg/L
QA Check
x---z-z:z..
Aerobic Aerobic Dup Anaerobic
I l--i '2.... i3
(.J.o. 7,,:S 7_i..( Cjt-{, U"::,l--i·l-j S%. 2.i-/�
S 1. ,l.-\ lQ o l '-Ila.-79C\C\ �o.0�;10
7,7/\7 7, ��'-\S <,?;,Z..\ '°'
t;·s. 8t Ri.Q l-1 � . ' l._Q '8'9 S\-3\90
i I-:;� 7 q l, :,v, q 0 I, --Z.. �-l-0
i; 2..-7 \I...\� i.,j 7, r"')5i../C. So.SS72-
0 , 1, S ··.¼.fl 0, -Z..SYLt.. o,s,_0 1.-
�Y"i:>·, -o . .:, ,.,,.
\t,1-i 11.·/. 11 ..... n "-I'/. \S• u\\'L
--y.,��-� -o.eio,,s·t,
'g\. 31..i...j '/, %Lt.I 01.'/, s· ai · '--1 -Z.. .Y I,
SRM Limits: "-1S-i....f8;9
Analyst 1\-,<M..(UL__ Out Furnace 1-2-t-1.1. c,o. ;.:x,)C\.,;
Primary Digester
JO I I
'5t-t • %{.e-C (J. '-, • 50,s;ri.j
l.f�.s\cn cPl.to.719
I \ • -z.:,1.-\ s "zs' �. 9 z..eeu
l.--j'!,.9'103 S'-l,Cf8'3�
0 ,'--�70(.Q. 0 -�2' \ '2,0
f.-\'�'),i.,�<-jro 9---t,79S1 n
0,\\i.-i,O\ u. \"l--3 'ii
i-t, H ct,/, -::i ' .. \°Is'/.
7 S · '::>%½'/, (J,O . � 1 . .\' I •
Revision 3/17/22 AM
\
8:58 AM 11/16/2022
Volatile solids Reduction Form
Central Davis Co. Sewer District
VS Reduction
Van Kleek Equation-White House Manual
I Date Tested:
FVSR = 1-VSb x (1-VSf)
VSf x (1-VSb)
Where Digester solids as a fraction
Primary solids as a fraction
1-0.147279754
0.299909754
1-0.491080239
Reduction 0.5089
0.24416
0.39679
51%
7/19/20221
0.60321
0.75584
1 :56 PM 1017/2022 Volatile Solids Reduction Form
Central Davis Co. Sewer District
VS Reduction
Van Kleek Equation-White House Manual
FVSR = 1-VSI;> x (1-VSf)
VSf x (1-VSb)
!Date Tested:
Where Digester solids as a fraction
Primary solids as a fraction
1-0.142951253
0.297661253
1-0.480248106
0.23376
0.38847
10/5/20221
0.61153
0.76624
Reduction 0.5198 52% / tf"I,,-

(This Page Intentionally Left Blank)
Biosolids and Biosolids
Derived Production 1.
.
2022 Anaerobic Land Applied Biosolids Production2. 2022 Aerobic Biosolids Production3.
.
2022 Compost Biosolids Derived Production4. 2022 Landfill Summary
Central Davis Sewer District
Aerobic Biosolids 2022 Loads
Month 450 Mixer Truck Dump Truck 620 Mixer Truck Landfill (Tons)
January 0 - - 428
February 0 - - 445
March 0 - - 421
April 296,000 - - 237
May 344,000 - - 196
June 324,000 - - 264
July 324,000 - - 156
August 404,000 - - 254
September 372,000 - - 179
October 164,000 - - 278
November 0 - - 375
December 0 - - 451
Load Total lbs 2,228,000 0 0 8,107,198
% Solids 18.6% 18.6% 18.6% 18.6%
Dry Weigh(lbs) 414,408 0 0 1,507,939
English Tons 207 0 0 754
Metric Tons 188 0 0 685
Total Tons per
Year ‐ Metric
Aerobic Loads
Year Totals
874
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Biosolids Derivded Production/Aerobic Biosolids Load Counts 2021
Central Davis Sewer District
Anaerobic Biosolids 2022 Loads
Month 450 Mixer Truck Dump Truck 620 Mixer Truck
January 0 - -
February 0 - -
March 0 - -
April 88,000 - -
May 86,000 - -
June 128,000 - -
July 260,000 - -
August 232,000 - -
September 168,000 - -
October 0 - -
November 0 - -
December 0 - -
Load Total lbs 962,000
% Solids 14.4%
Dry Weigh(lbs) 138,528
English Tons 69
Metric Tons 63
Total Tons per
Year ‐ Metric
Aerobic Loads
Year Totals
63
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Biosolids Derivded Production/Aerobic Biosolids Load Counts 2022 ‐ Copy
Central Davis Sewer District 
2022 Anaerobic Biosolids Spreader Loads
Anaerobic Loads
Zone Spreader
Zone 11 53
Zone 7 172
Zone 13 149
Load Total 374
% Solids 14.4%
Dry Weigh(lbs) 596,299
English Tons 298
Metric Tons 271
Year Totals
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Report ‐ Calendar Year 2022/8. Biosolids and Biosolids Derivded Production/Anaerobic Biosolids Sludge 
Loads ‐ 2022
CENTRAL DAVIS SEWER DISTRICT
Compost Production Analysis
2022
2021 Compost Balance
Screened - Metric Tons
Unscreened/Reground - Metric Tons
Unscreened 1,260 Metric Tons
Total 1,260 Metric Tons
Compost Screened and Tested 3/28/2022
2021 664 Metric Tons*
2022 - Metric Tons
664 Metric Tons
Compost Screened
2022 Year 664 Metric Tons
664 Metric Tons
Remaining At End 2022
2022 Finished Compost 41 MT Measured
2022 Windrows 1,725 MT Measured
Total Remaining 1,766 Metric Tons
Compost Production in 2022 1,725 Metric Tons
Compost Sold During 2022 664 Metric Tons
https://d.docs.live.net/98ae734ac05258f0/BIOSOLIDS Files/Biosolids - Consolidated Data/Biosolids Report -
Calendar Year 2022/8. Biosolids and Biosolids Derivded Production/Compost Production Analysis 2022
Central Davis Sewer District
COMPOST PILE MEASUREMENT
Screened, Tested and Stored 3/28/2022
Compost Pile Dimensions: Values in Feet
Width 32
Length 30
Height 8
Note:  Pile width and height are measured from
a point mid‐way up the slope each direction.
Pile Volume 7,680        Cubic Feet
284           Cubic Yards
Dry Weight per Cubic Yard 540 pounds/CY
Pile Weight 153,600     pounds
English tons of Compost 76.80          Tons‐E
Metric Tons of Compost 70               Tons‐M
Pile Measured by: Manjot Masson and Brent Justensen
2/3/2023  8:38 AM
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Pile Measurement Sheet‐2021
Central Davis Sewer District
COMPOST PILE MEASUREMENT
Screened, Tested and Stored 3/28/2022
Compost Pile Dimensions: Values in Feet
Width 32
Length 30
Height 8
Note:  Pile width and height are measured from
a point mid‐way up the slope each direction.
Pile Volume 7,680        Cubic Feet
284           Cubic Yards
Dry Weight per Cubic Yard 540 pounds/CY
Pile Weight 153,600     pounds
English tons of Compost 76.80          Tons‐E
Metric Tons of Compost 70               Tons‐M
Pile Measured by: Manjot Masson and Brent Justensen
2/3/2023  8:38 AM
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Pile Measurement Sheet‐2021
Central Davis Sewer District
COMPOST PILE MEASUREMENT
Screened, Tested and Stored 3/28/2022
Compost Pile Dimensions: Values in Feet
Width 20
Length 80
Height 9
Note:  Pile width and height are measured from
a point mid‐way up the slope each direction.
Pile Volume 14,400      Cubic Feet
533           Cubic Yards
Dry Weight per Cubic Yard 540 pounds/CY
Pile Weight 288,000     pounds
English tons of Compost 144.00        Tons‐E
Metric Tons of Compost 131             Tons‐M
Pile Measured by: Manjot Masson and Brent Justensen
2/3/2023  8:38 AM
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Pile Measurement Sheet‐2021
Central Davis Sewer District
COMPOST PILE MEASUREMENT
Screened, Tested and Stored 3/28/2022
Compost Pile Dimensions: Values in Feet
Width 20
Length 80
Height 9
Note:  Pile width and height are measured from
a point mid‐way up the slope each direction.
Pile Volume 14,400      Cubic Feet
533           Cubic Yards
Dry Weight per Cubic Yard 540 pounds/CY
Pile Weight 288,000     pounds
English tons of Compost 144.00        Tons‐E
Metric Tons of Compost 131             Tons‐M
Pile Measured by: Manjot Masson and Brent Justensen
2/3/2023  8:38 AM
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Pile Measurement Sheet‐2021
Central Davis Sewer District
COMPOST PILE MEASUREMENT
Screened, Tested and Stored 3/28/2022
Compost Pile Dimensions: Values in Feet
Width 20
Length 80
Height 9
Note:  Pile width and height are measured from
a point mid‐way up the slope each direction.
Pile Volume 14,400      Cubic Feet
533           Cubic Yards
Dry Weight per Cubic Yard 540 pounds/CY
Pile Weight 288,000     pounds
English tons of Compost 144.00        Tons‐E
Metric Tons of Compost 131             Tons‐M
Pile Measured by: Manjot Masson and Brent Justensen
2/3/2023  8:38 AM
https://d.docs.live.net/98ae734ac05258f0/BIOSOLIDS Files/Biosolids ‐ Consolidated Data/Biosolids Report ‐ Calendar Year 2022/8. Biosolids and Biosolids Derivded Production/Compost 
Pile Measurement Sheet‐2021
Central Davis Sewer District
COMPOST PILE MEASUREMENT
Screened, Tested and Stored 3/28/2022
Compost Pile Dimensions: Values in Feet
Width 20
Length 80
Height 9
Note:  Pile width and height are measured from
a point mid‐way up the slope each direction.
Pile Volume 14,400      Cubic Feet
533           Cubic Yards
Dry Weight per Cubic Yard 540 pounds/CY
Pile Weight 288,000     pounds
English tons of Compost 144.00        Tons‐E
Metric Tons of Compost 131             Tons‐M
Pile Measured by: Manjot Masson and Brent Justensen
2/3/2023  8:38 AM
https://d.docs.live.net/98ae734ac05258f0/BIOSOLIDS Files/Biosolids ‐ Consolidated Data/Biosolids Report ‐ Calendar Year 2022/8. Biosolids and Biosolids Derivded Production/Compost 
Pile Measurement Sheet‐2021
Central Davis Sewer District
COMPOST PILE MEASUREMENT
Screened, Tested and Stored 1/20/2023
Compost Pile Dimensions: Values in Feet
Width 10
Length 45
Height 10
Note:  Pile width and height are measured from
a point mid‐way up the slope each direction.
Pile Volume 4,500        Cubic Feet
167           Cubic Yards
Dry Weight per Cubic Yard 540 pounds/CY
Pile Weight 90,000        pounds
English tons of Compost 45.00          Tons‐E
Metric Tons of Compost 41               Tons‐M
Pile Measured by: Manjot Masson and Brent Justensen
2/3/2023  8:38 AM
https://d.docs.live.net/98ae734ac05258f0/BIOSOLIDS Files/Biosolids ‐ Consolidated Data/Biosolids Report ‐ Calendar Year 2022/8. Biosolids and Biosolids Derivded Production/Compost 
Pile Measurement Sheet‐2021
Central Davis Sewer District
COMPOST PILE MEASUREMENT
 Unscreened, Un‐tested and Windrowed 1/20/2023
Compost Pile Dimensions: Values in Feet
Storage Active1_Aerobic Active2_anaerobic
Width 0 25 20
Length 0 180 150
Height 0 9 8
Note:  Pile width and height are measured from
a point mid‐way up the slope each direction.
Pile Volume 0 20,250            12000 Cubic Feet
0 750                 444        Cubic Yards
Dry Weight per Cubic Yard 540 pounds/CY 540 pounds/CY
Pile Weight ‐                        405,000            240,000  pounds
English tons of Compost ‐                        202.50              120.00     Tons‐E
Metric Tons of Compost ‐                          184                    109          Tons‐M
Total Number of Piles 074
Metric Tons of Unscreened Compost Tons‐M
Pile Measured by: Brent Justensen and Manjot Masson
Storage Pile Active Pile
1,725.00                                       
CENTRAL DAVIS SEWER DISTRICT
LANDFILLED BIOSOLIDS SUMMARY
2022
Delivery Date Ticket Number Tons Delivered Month Total Delivery Date Ticket Number Tons Delivered Month Total
1/5/2022 1051807 32.66 7/1/2022 1060187 33.58
1/6/2022 1051887 34.83 7/20/2022 1060956 32.14
1/7/2022 1051940 32.96 7/21/2022 1061030 32.59
1/11/2022 1052041 32.23 7/22/2022 1061106 25.50
1/13/2022 1052160 33.07 7/28/2022 1061332 31.71 155.52
1/14/2022 1052218 37.03 8/1/2022 1061450 35.94
1/18/2022 1052347 32.48 8/2/2022 1061508 33.06
1/19/2022 1052411 32.40 8/17/2022 1062224 29.03
1/21/2022 1052534 32.91 8/18/2022 1062292 32.70
1/24/2022 1052599 31.76 8/19/2022 1062377 30.84
1/26/2022 1052721 31.85 8/23/2022 1062485 29.87
1/28/2022 1052843 31.70 8/25/2022 1062605 30.78
1/31/2022 1052895 31.70 427.58 8/26/2022 1062667 32.20 254.42
2/2/2022 1053019 30.70 9/13/2022 1063330 32.52
2/4/2022 1053127 32.15 9/14/2022 1063388 33.69
2/7/2022 1053185 32.10 9/16/2022 1063501 30.17
2/8/2022 1053245 31.16 9/21/2022 1063677 30.68
2/10/2022 1053371 31.19 9/22/2022 1063748 32.62
2/11/2022 1053429 30.48 9/23/2022 1063805 18.95 178.63
2/14/2022 1053490 27.66 10/12/2022 1064622 34.43
2/15/2022 1053549 33.97 10/13/2022 1064673 34.74
2/16/2022 1053641 32.48 10/14/2022 1064745 23.09
2/18/2022 1053736 32.83 10/19/2022 1064948 33.53
2/23/2022 1053919 33.18 10/20/2022 1065000 31.74
2/24/2022 1053986 31.77 10/21/2022 1065096 23.45
2/25/2022 1054062 31.39 10/26/2022 1065270 34.93
2/28/2022 1054105 34.43 445.49 10/27/2022 1065345 31.25
3/2/2022 1054217 31.39 10/28/2022 1065394 31.14 278.30
3/4/2022 1054330 29.33 11/1/2022 1065510 31.90
3/7/2022 1054405 38.54 11/3/2022 1065643 35.16
3/9/2022 1054528 36.40 11/7/2022 1065756 35.87
3/10/2022 1054591 30.68 11/9/2022 1065892 32.63
3/14/2022 1054720 29.98 11/10/2022 1065943 33.72
3/16/2022 1054852 32.50 11/14/2022 1066078 35.85
3/17/2022 1054915 31.68 11/16/2022 1066207 33.12
3/21/2022 1055027 32.07 11/17/2022 1066290 33.51
3/22/2022 1055100 30.56 11/21/2022 1066442 34.13
3/24/2022 1055240 32.72 11/23/2022 1066571 34.17
3/28/2022 1055400 34.19 11/22/2022 1066518 34.51 374.57
3/30/2022 800050 31.27 421.31 12/1/2022 1066873 33.58
4/1/2022 1055650 31.86 12/2/2022 1066935 28.44
4/4/2022 1055745 28.02 12/7/2022 1067110 33.48
4/6/2022 1055889 31.19 12/8/2022 1067186 33.59
4/8/2022 1055998 32.23 12/9/2022 1067248 37.32
4/11/2022 1056059 26.82 12/14/2022 1067437 34.11
4/27/2022 1056979 33.04 12/15/2022 1067490 33.74
4/28/2022 1057030 32.71 12/16/2022 1067543 39.71
4/29/2022 1057100 21.36 237.23 12/20/2022 1067652 34.98
5/4/2022 1057330 32.81 12/21/2022 1067729 37.30
5/5/2022 1057426 31.51 12/20/2022 1067987 33.37
5/6/2022 1057503 34.63 12/28/2022 1068019 37.14
5/25/2022 1058325 32.88 12/29/2022 1068075 34.61 451.37
5/26/2022 1058398 31.95
5/27/2022 1058483 32.63 196.41
6/1/2022 1058605 32.82
6/2/2022 1058672 32.40
6/6/2022 1058837 25.46 3685.09
6/22/2022 1059667 30.41
6/23/2022 1059720 32.93 622.78 566.16
6/24/2022 1059789 30.11 English Tons Metric Tons
6/28/2022 1059965 14.66 Total Costs 210,727$ Per Year 57.18$
6/29/2022 1060038 33.29
6/30/2022 1060114 32.18 264.26
TOTAL (TONS)
TOTAL SOLIDS WEIGHT (TONS)
https://d.docs.live.net/98ae734ac05258f0/BIOSOLIDS Files/Biosolids ‐ Consolidated Data/Biosolids Report ‐ Calendar Year 2022/8. Biosolids and Biosolids Derivded Production/Landfill Summary 2022 1
Land Application Records- 2022 1.Zone 08 Information2.Zone 09 Information3.Zone 15 Information4.Soil Sampling Results and Deep
. Soil Monitoring Graphs
Total Loads 148
Zone Number 11 Load Analysis
6.14 Acres Load Volume 1800 gal fertilizer required 1749.9 lbs
Fertilizer Required per Acre 400 lbs/acre Weight per gallon 8.35 lbs. nitrogen per load 11.9 lbs
(Based on Cropping Values) Specific Gravity 1.025
(for orchard grass and alfalfa mix)Weight per Load 15406 lbs Total Loads ‐ Calc 148
Total Fertilizer Required 2456 lbs NH4‐N Concentration 697 ppm
Fertilizer Available in Soil 23 ppm NO3‐N Volatilization Factor ‐ Kv 50% Application Acres 6.14
Total NO3‐N Available in Soil 706.1 lbs Fertilizer Value per Load 5.4 lbs Loads Per Acre 24
(Five times the NO3‐N in Soil)Organic Nitrogen Concentration 2106.3 ppm  Percent Solids 7.0%
Net Fertilizer Required for Zone 1749.9 lbs      (TKN‐NH4‐N) Solids Per Load 1078 lbs
Mineralization Rate 20% Application Rate 13.0 tons/acre
Date
TKN 
(organic 
nitrogen)
NO3‐N 
Nitraite+Nitrit
e as N
NH3‐N 
Ammoni
a as N Organic ‐ N per Load 6.5 lbs Metric Rate 29.1 MT/Ha
7/15/2021 2,290 0.0 721 NO3 Concentration 0.0 ppm
1/15/2021 2820 0.0 662 NO3‐N per Load 0.0 lbs
10/25/2021 3300 0.0 708 Total Available Nitrogen per Load 11.9 lbs Total Loads Applied 138
Total 8410 0.0 2091 Loads Per Acre 22.5
Average 2803.3 0.0 697.00 Application Rate 12.1 tons/acre
Percent Solids: TKN ‐ NH3‐N=organic N ppm Metric Rate 27.2 MT/Ha
7.00%
Date Application Began:
Date Application Ended:
*Note‐ all Nitrate+Nitite values were non‐detect tested by Chemtech Ford, a value of 1 will be used for the purpose of this spread sheet
11/19/2021
1/29/2022
Application Analysis for Zone 11
Total Available Nitrogen ‐ Anaerobic Biosolids
Whole Sludge Application Rate Analysis ‐ Calculated
Anaerobic Sample ‐ in ppm
Whole Sludge Application Rate Analysis ‐ Actual
2106.3
Total Loads 180
Zone Number 7 Load Analysis
4.4 Acres Load Volume 1300 gal fertilizer required 1540 lbs
Fertilizer Required per Acre 400 lbs/acre Weight per gallon 8.35 lbs. nitrogen per load 8.6 lbs
(Based on Cropping Values) Specific Gravity 1.025
(for orchard grass and alfalfa mix)Weight per Load 11126 lbs Total Loads ‐ Calc 180
Total Fertilizer Required 1760 lbs NH4‐N Concentration 697 ppm
Fertilizer Available in Soil 10 ppm NO3‐N Volatilization Factor ‐ Kv 50% Application Acres 4.4
Total NO3‐N Available in Soil 220 lbs Fertilizer Value per Load 3.9 lbs Loads Per Acre 41
(Five times the NO3‐N in Soil)Organic Nitrogen Concentration 2106.3 ppm  Percent Solids 6.0%
Net Fertilizer Required for Zone 1540 lbs      (TKN‐NH4‐N) Solids Per Load 668 lbs
Mineralization Rate 20% Application Rate 13.6 tons/acre
Date
TKN 
(organic 
nitrogen)
NO3‐N 
Nitraite+Nitrit
e as N
NH3‐N 
Ammoni
a as N Organic ‐ N per Load 4.7 lbs Metric Rate 30.6 MT/Ha
7/15/2021 2,290 0.0 721 NO3 Concentration 0.0 ppm
1/15/2021 2820 0 662 NO3‐N per Load 0.0 lbs
10/25/2021 3300 0 708 Total Available Nitrogen per Load 8.6 lbs Total Loads Applied 172
Total 8410 0 2091 Loads Per Acre 39.1
Average 2803.3 0.0 697.00 Application Rate 13.0 tons/acre
Percent Solids: TKN ‐ NH3‐N=organic N ppm Metric Rate 29.3 MT/Ha
6.00%
Date Application Began:
Date Application Ended:
12/31/2022
6/24/2022
Application Analysis for Zone 7
Total Available Nitrogen ‐ Anaerobic Biosolids
Whole Sludge Application Rate Analysis ‐ Calculated
Anaerobic Sample ‐ in ppm
Whole Sludge Application Rate Analysis ‐ Actual
2106.3
Total Loads 278
Zone Number 13 Load Analysis
Acres in Zone 12.7 Acres Load Volume 1300 gal fertilizer required 4445 lbs
Fertilizer Required per Acre 400 lbs/acre Weight per gallon 8.35 lbs. nitrogen per load 16.0 lbs
(Based on Cropping Values) Specific Gravity 1.025
(for orchard grass and alfalfa mix)Weight per Load 11126 lbs Total Loads ‐ Calc 278
Total Fertilizer Required 5080 lbs NH4‐N Concentration 581 ppm
Fertilizer Available in Soil 10 ppm NO3‐N Volatilization Factor ‐ Kv 50% Application Acres 12.7
Total NO3‐N Available in Soil 635 lbs Fertilizer Value per Load 3.2 lbs Loads Per Acre 22
(Five times the NO3‐N in Soil)Organic Nitrogen Concentration 5719.7 ppm  Percent Solids 13.0%
Net Fertilizer Required for Zone 4445 lbs      (TKN‐NH4‐N) Solids Per Load 1450 lbs
Mineralization Rate 20% Application Rate 15.9 tons/acre
Date
TKN 
(organic 
nitrogen)
NO3‐N 
Nitraite+Nitrit
e as N
NH3‐N 
Ammoni
a as N Organic ‐ N per Load 12.7 lbs Metric Rate 35.6 MT/Ha
1/31/2022 3,850 0 646 NO3 Concentration 0.6 ppm
4/22/2022 7800 0 410 NO3‐N per Load 0.0 lbs
7/15/2022 7253 1.9 688 Total Available Nitrogen per Load 16.0 lbs Total Loads Applied 169
Total 18903 1.9 1744 Loads Per Acre 13.3
Average 6301.0 0.6 581.33 Application Rate 9.6 tons/acre
Percent Solids: TKN ‐ NH3‐N=organic N ppm Metric Rate 21.6 MT/Ha
13%
Date Application Began:
Date Application Ended:
10/10/2022
present
Application Analysis for Zone 13
Total Available Nitrogen ‐ Anaerobic Biosolids
Whole Sludge Application Rate Analysis ‐ Calculated
Anaerobic Sample ‐ in ppm
Whole Sludge Application Rate Analysis ‐ Actual
5719.7
2022 Soil Sampling
QA Consulting and Testing, LLC
PO Box 627
Salem, Utah 84653
801-423-1116
Name: Von Isaman
Date: November 14, 2022
AB-DTPA Chromotropic
Extract Acid
Method Method
Customer Sample ID ppm P ppm NO3-N
Composite D 0/1 56.00 11.00
Composite D 1/2 29.00 4.00
Composite D 2/3 4.00 3.00
Composite D 3/4 6.00 3.00
Composite D 4/5 5.00 4.00
Composite Surface Sample 58.00 21.00
CDSD - 2022 Composite Deep Soil Sampling- to Confining Layer
Nitrates
Phosphorus 
0
1
2
3
4
5
6
7
8
9
10
12345
0
10
20
30
40
50
60
12345
C:\Users\Owner\OneDrive\BIOSOLIDS Files\Biosolids ‐ Consolidated Data\Biosolids Report ‐ Calendar Year 2022\9. Land Application 
Records\QA Consulting and Testing Graphs 2022
 4:25 PM 11/18/2022
Zone 613.48
Zone 77.02
Zone 919.99
Zone 54.34
Zone 116.75
Z
o
n
e

1
3
1
2
.
7
0
Z
o
n
e

1
2
7.
1
8
Zone 13.11
Zone 34.15
Zone 1010.75
Zone 813.02
Zone 411.64Zone 23.12
Land Application Zones
Created 2022 Samples Taken October 31, 2022

(This Page Intentionally Left Blank)
National Biosolids Partnership
Annual Reports 20221.Biosolids Management Report2.Management Review3.Goals Report4.Internal Audit5.External Audit
1
Central Davis Sewer District
2022 Biosolids Management Report
This report will fulfill the requirement in Element 15 of the District’s Biosolids EMS System.
This report is submitted to the Board for Central Davis Sewer District in conjunction with
the District’s Annual Biosolids Report prepared for submission to Utah DWQ and EPA.
The summary information contained in this report is supported by additional
documentation in the Annual Report.

Chemical Pollutant Analysis
During 2022, Central Davis Sewer District tracked the chemical quality of biosolids
produced by its wastewater treatment plant according to the method of treatment. Since
each treatment method is tracked separately, the results are reported individually below.

Anaerobic Digested Biosolids
Metals analysis stipulated in 40 CFR Part 503 was performed quarterly by Central
Davis Sewer District on anaerobic digested biosolids. Quarterly results, lab reports
and quality control charts have been calculated and are included in a section of
the biosolids annual report. All metals were in compliance with Table 3 Exceptional
Quality Biosolids standards.

Compost Biosolids
Compost is sampled when the pile is ready for distribution and marketing. In 2022,
six samples were taken and analyzed. The yearly averages and individual test
values comply with Table 3 of the 503 regulations. A summary report, lab reports
and quality charts are included in a separate section of the annual report.

Biosolids Pathogen Reduction
During 2022, Central Davis Sewer District met the permit and regulatory requirement for
pathogen reduction in two separate ways. One method produces Class A compost, and
the second method produces Class B anaerobic biosolids. Biosolids produced in 2022
2
that were land applied or sold met either Class A or Class B standards. In addition, since
Class B biosolids must meet site restrictions, these requirements were also complied with
in 2022.

Vector Attraction Reduction Requirement
Central Davis Sewer District evaluates VAR methods separately for the two biosolids
production streams that are beneficially reused which operate at the plant. These two
production streams are Trickling Filter - Anaerobic Digested Biosolids and Oxidation Ditch
- Composted Biosolids. The anaerobic biosolids met the VAR requirement by complying
with 38% reduction of volatile solids. The composted biosolids met VAR requirement by
being in process for more than 14 days with temperatures higher than 45-degrees
centigrade. All biosolids produced by the District met these standards.

Biosolids Production Rates
Central Davis Sewer District produced composted and anaerobic digested biosolids.
The District maintained separate records for production of each type. The 2022 quantities
of biosolids or biosolids derived material sold or land applied away are 2,562 MT.

Landfilled Biosolids

During the winter, the District landfills biosolids to conserve wood waste and to prevent
odor complaints. The District landfilled 566 metric tons of biosolids during 2022. While
landfilling is not beneficial reuse of the resource, winter landfilling is preferable to
complaints and losing the compost process. Thermal drying has been investigated but
the high cost relative to landfilling is not acceptable at the present time. The District will
continue to explore other options for beneficial reuse.

Contractor Activities
There were no contractors used in the biosolids value chain in 2022.

3
Goals and Objectives
The Goals and Objectives for 2022 were the following:
 Regulatory Compliance
 Objective: Central Davis Sewer District is a part of the national biosolids
program and certified by an NBP third party auditor. As a part of the program
CDSD feels it is important to have an internal audit every year to ensure the
program is as successful as it can be
Goal: Provide training for staff member on internal audit EMS
procedures.
Cost Savings: The cost savings associated with this Goal are invaluable, having a
knowledgeable Staff is a key goal of Central Davis Sewer District.
 Relations with Interested Parties
 Objective: The District’s current compost flyer will be redesigned with updated
information for the District’s compost. The flyer will be provided to residents
that purchase the District’s compost, in addition to being posted on the
District’s Facebook page and website.
Goal: Update information for District Compost Flyer
Cost Savings: The compost flyer was designed by Staff, public relations for a
flyer/poster can cost thousands of dollars.
 Environmental Performances
 Objective: Due to the District losing a portion of its land application area, the
District will be exploring different methods of biosolids disposal. Staff will
create an anerobic compost pile in the summer and follow 40 CFR Part 503
regulations.
Goal: Compost Anaerobic Biosolids in the summer to meet regulatory
compliance requirements.
Cost Savings: For the year of 2022, Central Davis Sewer District spent over two
hundred thousand dollars in tipping fees to the landfill. Composting the anaerobic
biosolids provides a beneficial use for the biosolids and keeps it from going to the
landfill. Based on tonnage the District saved $28,000 in landfill fees.
 Quality Biosolids Management Practice
4
 Objective: The dewatering building has a significant amount of odor around
the building. There are two roads proposed near the dewatering building,
exposing more people to possible odors. The District’s policy is to be a good
neighbor to minimize odors.
Goal: Control odor near the Dewatering Building
Cost Savings: If this goal had been completed the cost savings associated with this goal
would be non-quantifiable, having good public relations can save the District millions of
dollars in potential lawsuits.

All Biosolids Goals were ended or completed in 2022. New Goals will be implemented for
2023.

Internal Audit
The internal audit did not demonstrate any material weaknesses in the program. The
internal audit report may be reviewed in the Lead Auditor’s Office or on the District
website. The conclusion of the internal audit report was the following:

“Central Davis Sewer District has committed to a tremendous use of time, energy, and
manpower towards certification through the National Biosolids Partnership (NBP). The
commitment to the EMS by the team at CDSD should be recognized for their dedication.

Auditors for this year determined that most of the findings they had were grammatical
and/ or wording changes due to changes in staff responsibilities and titles. The only
actionable changes for the plant were those that included the need for more signs to be
posted around the plant at appropriate areas for “Authorized Personnel” and “Biosolids
Land Application Site” signage and “Critical Control Point” labels. These findings are
minimal and the documents were reviewed and discussed to ensure details were clearly
understood by the team and any needed corrections submitted before adjournment.”

The District Manager followed up on the internal audit report and changes were made.
This documentation can be found in the District Manager’s office.
5

External Interim Audit
A third-party audit was conducted by NSF International. The third-party audit report is
included in the annual biosolids report. In addition, the audit findings can be found on the
District website at cdsewer.org. There were no major or minor non-conformances
identified in the third-party audit report. The report included seven opportunities for
improvement that the District will use to improve the overall EMS program. In addition,
the audit report included two positive observations, applauding the District Board and
Staff for dedication and involvement to the EMS program. The audit response from the
District Manager can be found as an attachment to this report on a letterhead.

- 1 -
Central Davis Sewer District

Period: January 1, 2022 to December 31, 2022
Review Conducted by Jill S. Jones
February 1, 2023 Annual Activities – Management Review

The following activities are described in the EMS Manual as required activities on a periodic or annual basis. In italics are quotations from the EMS Manual and below the quote is the Management Response.
The District Manager will bring the revisions to the Board of Trustees for
consideration. Recommended revisions to the policy may also be included in
the annual EMS Management Review.
 The annual report and management review for 2022 will be presented to the
Board on February 09, 2023. The Internal Audit was reviewed at the October 2022 Board meeting. The results of the fifteenth Interim Reverification Audit conducted by NSF International were presented to the Board at the meeting in November 2022. There were no major or minor non-conformances
identified in the external audit. The District increased hauling biosolids to the
landfill in 2019 due to contract negotiations with Wasatch Regional landfill, the contract requires a minimum tonnage to be met every month. A new contract was signed in 2022, with the same minimum tonnage requirements and an increase in tipping fees.

Central Davis Sewer District Manager will review information in Table 3.1 on an
annual basis, when there are regulatory changes or whenever major
operational changes occur. The annual review will be conducted by February 28th each year.

 Table 3.1 on critical control points was reviewed as of February 1, 2023.
Check with the state biosolids coordinator at least annually on an informal basis.

 Numerous formal and informal contacts with Dan Griffin, the Utah State Biosolids Coordinator were made in 2022.
Central Davis Sewer District will set or revise goals and objectives for its
biosolids program on an as-needed basis. Any new goals and strategies will
be finalized no later than February 28th of each year.

- 2 -

 The goals and objectives for 2022 were completed and the final goals report was presented to the Board at the October 2022 Board Meeting. Goals
specific to each of the four outcome areas were identified and completed. A
list of potential goals for 2023 will be presented to the Board for consideration at the February 2023 meeting. Goals were brainstormed in September 2022 at Safety Meeting.
Goals and objectives will be posted in the District office on the main bulletin
board.
 Goals are included in the manual that is posted on the District’s website at cdsewer.org. The EMS Manual and the associated goals and objectives are
available electronically for all employees by accessing the District’s website. In addition, a paper copy of the goals and objectives are posted on the Main bulletin board. Roles and responsibilities for various individuals that are specific to the EMS
are assigned by the District Manager. They are reviewed and updated as
necessary on an annual basis (by February 28th of each year).
 The roles and responsibilities outlined in Element 7 are up to date. However, changes are ongoing, and the roles and responsibilities will be reevaluated
on an annual basis along with the EMS review.
The District maintains several lists of individuals interested in Central Davis Sewer District biosolids program and/or EMS related activities. These lists include the Odor
Complaint Log, attendance lists in the minutes of Board meetings, and a Telephone
Log for specific concerns expressed by the public (not including queries about compost availability or pricing) and is maintained by the District Manager and the
Accountant.
 The accountant/clerk maintains the complaint log and the telephone query
log. There were multiple queries about availability and pricing of compost
that were not logged. There were two odor comments or complaints in 2022. The District Manager and or Staff contacted all individuals that contacted the District with comment or concerns. The District believes all comments and concerns have been addressed.

Operational controls will be reviewed by the District Manager on an annual
basis (by February 28th) or whenever significant changes in plant processes
and/or operations occur. Revisions (if any) to Table 3.1 and associated SOP’s and monitoring/measurements will be made by the District Manager following
these reviews.

 All operational controls appear to be adequate. No new control processes were installed, only routine maintenance was performed.

- 3 -

Significant changes will be documented in writing and will be noted in the annual biosolids program report and updated to the NBP and the 3rd party
auditor.

 No major changes were made in 2022. Several opportunities for improvements were implemented in conjunction with the audits, but these were insignificant in relation to the entire program.

Central Davis Sewer District Wastewater Treatment Plant has an Emergency
Response Program which is reviewed yearly and updated as needed. Interim
revisions to specific sections of the Emergency Response Program are made on an “as needed” basis. A specific biosolids section is included in the manual
and covers impacts from significant load changes, slug loads, extreme weather
conditions, and equipment failures.
 The emergency response plan was updated in 2012 and implemented in 2013 continuous changes are made on an annual basis due to the EMS being
a living document. Currently, the EMS is current with present practices. The District switched to an inherently safer technology for disinfection in place of gaseous chlorine. The District now uses liquid sodium hypochlorite for disinfection. In 2022 there were no incidents requiring emergency response. Annual training on the emergency response program and complete program
review was conducted with staff during safety day training in February 2022 and February 2023. An Emergency Action for Biosolids Transportation Release procedure was implemented in December of 2017 and converted to an SOP in 2019.
Important emergency contact information is kept by each phone and in the
manual.
 Emergency notice information is posted at each phone as of December 27, 2016. Periodic checks are made by the safety officer throughout the year to
ensure the phone information is current and not destroyed or removed. The information was checked in 2022.
Monitoring and measurement activities will be reviewed by the District Manager on an annual basis (by February 28th) or whenever significant changes in plant
processes and/or operations occur. Revisions (if any) to Tables 3.1 and
associated SOPs and monitoring/measurement documents will be made by the
District Manager.
 All current SOP’s and associated documentation are adequate and current
with EMS needs. The Manager reviewed all documentation associated with
the annual report during safety days in February 2022 and February 2023. All activities comply with regulatory and permitted requirements.

- 4 -

The District Manager will prepare and submit a written report to the Board of Trustees by February 28th of each year, summarizing the internal audit results
and corrective actions (if necessary) that have already been taken or will be
taken to address any non-conformances.
 The Internal Audit report was reviewed with the Board in October 2022. Corrective actions taken throughout the year have been discussed with the
Board as needed.

The District Manager will prepare a written report on an annual basis that
summarizes the performance of the biosolids management program. The performance report will be completed by February 28th of each year and will
address performance during the previous calendar year. At a minimum, the
report will contain the following information:
a. Summaries of monitoring data and other measurements that
demonstrate the performance of Central Davis Sewer District biosolids program relative to established goals, objectives, and
legal requirements.
b. Summary of relevant contractor activities (if any).
c. Summaries of actions that have been taken on a voluntary basis.
d. Progress towards achieving biosolids program goals and objectives.
e. A summary of internal audits.
f. A summary of independent third-party audits (if applicable).
 The District’s Annual Biosolids Report will be submitted to the Board for review in February 2023. This report summarizes all needed regulatory
compliance issues. The report contains information from the 2022 calendar year activities. The 2022 goals were discussed and approved by the Board during the October 2022 Board meeting. 2023 Goals will be presented to the Board during the second Board Meeting in 2023.
The scope of the management review will include:
a. Review monitoring data and other measurements that
demonstrate the performance of Central Davis Sewer District
biosolids program relative to established goals, objectives and legal requirements.
b. Review progress towards achieving biosolids goals and
objectives.
c. Review internal audit results.
d. Review 3rd party audit results. e. Review the need for changes in existing policy or the adoption of
new policy to support the EMS and biosolids related activities.
 No significant changes to the current EMS Manual are needed.
Goals Report 2022
Goal #1: Provide training for staff member on internal audit EMS procedures. Jace Woodrow and Aimee Matthies were both trained on internal audit process. The certifications were obtained through Velocity 360 training. The training provided ISO 14001 certification. Mr. Woodrow and Ms. Matthies also completed the internal audit for Central Davis Sewer District’s EMS program on September 7th, 2022.
Goal #2: Update information for District Compost Flyer The Compost Flyer has been updated. Information was gathered from multiple websites including the Utah State Agricultural website. The Flyer is posted on the Facebook Page and the District website. In addition, the Compost flyer is available residents when compost is purchased.
Goal #3: Compost Anaerobic Biosolids in the summer Staff has been composting 100% of the Anaerobic biosolids since July of 2022, the piles have met times and temperatures as per the 40 CFR Part 503. The compost will be available for sale in 2023.

Goal #4: Control odor near the Dewatering Building Staff has been in contact with Weaver Consultants Group, they provide odor neutralizers for areas with odors. Currently the District uses their product to the east of the compost beds. Staff requested a proposal for an odor mitigation plan for the area near the Dewatering Building. However, when the plan came back addition power was required in the area that is not currently feasible for the District. At this time this goal is completed due to the shortage of power availability.
Action Plan and Tracking - 2022
Critical Outcome Indicators
Goal Number: 1 Outcome Area: Regulatory Compliance Goal: Provide training for staff member on internal audit ems procedures. Objective: Central Davis Sewer District is a part of the national biosolids program and certified by an NBP third party auditor. As a part of the program CDSD feels it is important to have an internal audit every year to ensure the program is as successful as it can be.
Specific Measurable Achievable Relevant Time Bound The District will provide training to biosolids operational staff Jace Woodrow on the internal audit process.
A certification will be obtained for the Internal Audit training.
Adequate staff time and budget will be made available for the goal.
Regulatory Compliance Complete by December 31, 2022.

RESOURCES REQUIRED: Proper staff time and travel budget will be allocated
RESPONSIBLE PARTY: The District Manager will coordinate with the Biosolids Operator.
INTERESTED PARTIES
INVOLVED:
District Board, District Personnel, adjacent neighbors and rate payers.

Milestones Estimated Completion Date Actual Completion Date 1 Find internal audit trainings May, 2022 August 2022 2. Attend training for internal audit certification August, 2022 August 2022 3. Obtain certification September, 2022 August 2022
Manjot Masson <[e-mail]>
Fwd: Auditor training
1 message
Jill Jones <[e-mail]>Mon, Aug 15, 2022 at 3:30 PM
To: Manjot Kaur Masson <[e-mail]>
Jill S. Jones
District Manager
Central Davis Sewer District
2200 So. Sunset Dr
Kaysville, UT 84037
801-451-2190 office
801-209-3463 cell
---------- Forwarded message ---------
From: Jill Jones <[e-mail]>
Date: Mon, Aug 15, 2022 at 2:55 PM
Subject: Auditor training
To: Jace Woodrow <[e-mail]>
Cc: Aimee Matthies <[e-mail]>
Here is the link for the training to become an internal auditor.
Thanks,
https://www.velocity360training.com/courses/iso-14001-2015-internal-auditor?gclid=Cj0KCQjw3eeXBhD7ARIsAHjssr_D_
QJM1qgNi9JWIwk_vsylO_g6JZ99qqzda3BdReRePXJGC3j-b5UaAv0_EALw_wcB
Jill S. Jones
District Manager
Central Davis Sewer District
2200 So. Sunset Dr
Kaysville, UT 84037
801-451-2190 office
801-209-3463 cell
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Action Plan and Tracking - 2022
Critical Outcome Indicators
Goal Number: 2 Outcome Area: Relations with Interested Parties Goal: Update information for District Compost Flyer Objective: The District’s current compost flyer will be redesigned with updated information for the District’s compost. The flyer will be provided to residents that purchase the District’s compost, in addition to being posted on the district’s Facebook page and website.
Specific Measurable Achievable Relevant Time Bound The District will update the compost flyer and make available to interested residents.
The compost flyer will be posted on the District’s Facebook page and website. In addition it will be provided to all interested citizens that purchase compost.
Adequate staff time and budget will be made available for the goal.
Public Relations with District citizens is a priority to the District. Complete by December 31, 2022.

RESOURCES REQUIRED: Proper staff time and travel budget will be allocated
RESPONSIBLE PARTY: The Assistant Manager will coordinate with the Biosolids Operator.
INTERESTED PARTIES
INVOLVED:
District Board, District Personnel, adjacent neighbors and rate payers.

Milestones Estimated Completion Date Actual
Completion Date 1. Send staff to Compost Council Conference, or other conferences to gather current information on compost February, 2022 May, 2022 2. Contact USU and obtain information on compost. May 31, 2022 May, 2022 3. Create Flyer with information obtained June 31, 2022 September, 2022 4. Handout New Compost Flyers and post on District’s website and social media October 31, 2022 September, 2022
Central Davis Sewer District

Compost Information
Increase the moisture holding capacity for the soil
Increase the microbial life in the soil, resulting in faster breakdown of organic matter
making more nutrients available for plant uptake
Introduce plant-disease fighting organisms into the soil
Thank you for purchasing Central Davis Sewer Districts' compost! This product meets all State and Federal
requirements for Class A compost, also known as "EQ" (Exceptional Quality) as stated in the Code of Federal
Regulation 40 Part 503. Utah soils typically range from 0.25%-1% of organic material, areas with high rainfall as
some eastern and midwest states have as much as 7%-10% organic matter. Ideally a garden needs 5% organic matter.

Compost Applied to gardens and lawns can have the following benefits:

Compost derived from biosolids have minerals and trace elements which are necessary for plant growth that are
rarely found in other compost products, fertilizers, and other soil amendments (peat moss, sand, vermiculite, etc.).
CDSD's compost is a high quality product used as a soil amendment or top dressing. The compost is produced by
adding woodchips to recovered biosolids from the wastewater treatment facility. The composting process promotes
high bacterial activity which breaks down and stabilizes the organic materials in the biosolids mixture. The biological
activity produces heat, which causes the compost piles to reach temperatures in excess of 131 degrees Fahrenheit.
These temperatures destroy any disease-causing organisms that may have been present. The result is a SAFE, high-
quality product ideal for lawn, garden and landscape use. The compost mixture is tested for chemical and bacterial
properties and the results of these tests must be reported annually to the Utah Department of Environmental Quality
and the U.S. Environmental Protection Agency to maintain the title of Class A or EQ compost.
"G ivi n g b ac k to t he
e n v iron m e n t wi th a
su st ai n a b l e pr o du ct ."
Central Davis Sewer District has no warranties or claims of any kind and is not responsible for any alleged
damage from the use of this product. The user agrees to follow the recommendations and instructions for the use
of this product
All loads should be covered in accordance with Utah Code 27-12-1246

COMPOST FROM CDSD IS TYPICALLY VERY RICH IN ORGANIC PROPERTIES
AND SHOULD NOT BE OVER APPLIED.
AS WITH ALL SOIL AMENDMENTS, FERTILIZERS AND CHEMICALS,
WASH YOUR HANDS AFTER USE.
FOR MORE INFORMATION ON BIOSOLIDS AND BIOSOLIDS PRODUCTS (COMPOST),
PLEASE CONTACT THE DIVISION OF WATER QUALITY AT 801-538-6146
TURF GRASSES AND ORNAMENTAL GARDENS: Most Utah soils can be
amended with compost by applying 3 cubic yards of compost per 1000 square
feet of planting area. This is equivalent to a layer of compost 1 inch deep
applied onto the planting area. The compost should be thoroughly
incorporated into the top 4 to 6 inches of the soil in order to create a
uniform planting bed and to ensure aerobic conditions.
VEGETABLE GARDENS: Compost can be used in non-oranamental
gardens if it is applied in the fall after growing season. A uniform layer
of one inch should be applied on the garden area and thoroughly tilled
into the top 3 to 6 inches of soil.
SHRUBBERY AND TREE PLANTING: Compost can be mixed with
existing soil up to 1 to 2 ratio by volume; no more than 30%
organic amendment to be used as backfill for shrub and tree
planting.
LAWN UPKEEP: Maintenance as a top dressing, after aerating
compost should be spread uniformly to a depth of 1/4 inch on an
established lawn or ornament planting bed and raked in. Spring
and Fall applications and recommend for cool season grasses.
LAWN SEEDING: Top dressing after seeding- Compost should be
spread in a uniform cover 1/8 to 1/4 inch thick over newly seeded
areas.
In General, Compost is Recommended for the Following Uses
FOR COMPOST AVAILABILITY PLEASE CHECK THE DISTRICT'S WEBSITE AT CDSEWER.ORG
COMPOST LOADING: MONDAY THROUGH SATURDAY
8:30 AM TO 12:00 PM AND 1:00 PM TO 4:00 PM
October 1995
Michael G. Pace, Graduate Research Assistant; Bruce E. Miller, Assistant Professor,
Kathryn L. Farrell-Poe, Extension Environmental Engineer; Ag. Systems Tech. & Ed. Dept.
Composting is the aerobic, or oxygen-requiring, decomposition
of organic materials by microorganisms under controlled
conditions. During composting, the microorganisms consume
oxygen (O2) while feeding on organic matter (Figure 1). Active
composting generates considerable heat, and large quantities of
carbon dioxide (CO2) and water vapor are released into the air.
The CO2 and water losses can amount to half the weight of the
initial materials, thereby reducing the volume and mass of
the final product.
Figure 1. The Composting Process
What Happens During Composting
Composting may begin as soon as the raw materials are
mixed together. During the initial stages of the process, oxygen
and the easily degradable components of the raw materials are
rapidly consumed by the microorganisms.
The temperature of the windrow or pile is directly related to
the microorganism activity of the windrow and is a good
indicator of what is going on inside. The temperature of the
composting materials generally follows a pattern of rapid
increase to 120-140oF where it is maintained for several weeks
depending on the materials (Figure 2). As active composting
slows, temperatures will gradually drop until the compost
reaches ambient air temperatures.
A curing period usually follows the active composting
period. During the curing period, the materials will continue to
slowly decompose. Materials continue to break down until the
last easily decomposed raw materials are consumed by the
remaining microorganisms. At this point, the compost becomes
relatively stable and easy to handle.
Figure 2. Compost Temperature
Factors Affecting the Composting Process
1. Oxygen and Aeration
Aerobic composting consumes large amounts of oxygen,
particularly during the initial stages. If the supply of oxygen is
limited, the composting process may turn anaerobic, which is a
much slower and odorous process. A minimum oxygen concen-
tration of 5% within the pore spaces of the compost is necessary
for aerobic composting. Oxygen levels within the windrows or
piles may be replenished by turning the materials over with a
front-end loader, or by means of mechanical agitation with a
special compost turner.
2. C:N Ratio
Carbon (C), nitrogen (N), phosphorous (P), and potassium
(K) are the primary nutrients required by the microorganisms
invol-ved in composting. Microorganisms use carbon for both
energy and growth, while nitrogen is essential for protein pro-
duction and reproduction. The ratio of carbon to nitrogen is
referred to as the C:N ratio. An appropriate C:N ratio usually
ensures that the other required nutrients are present in adequate
amounts.
Raw materials blended to provide a C:N ratio of 25:1 to 30:1
are ideal for active composting, although initial C:N ratios from
20:1 up to 40:1 consistently give good composting results. For
C:N ratios below 20:1, the available carbon is fully utilized
without stabilizing all of the nitrogen which can lead to the
production of excess ammonia and unpleasant odors. For C:N
ratios above 40:1, not enough N is available for the growth of
microorganisms and the composting process slows dramatically.
AG-WM 01
3. Moisture
Moisture is necessary to support the metabolic processes of
the microbes. Composting materials should be maintained
within a range of 40% to 65% moisture. Experience has shown
that the composting process becomes inhibited when the
moisture content is below 40%. Water displaces much of the air
in the pore spaces of the composting materials when the
moisture content is above 65%. This limits air movement and
leads to anaerobic conditions. Moisture content generally
decreases as composting proceeds; therefore, you may need to
add additional water to the compost. As a rule of thumb, the
materials are too wet if water can be squeezed out of a handful
and too dry if the handful does not feel moist to the touch.
4. Particle Size
The rate of aerobic decomposition increases with smaller
particle size. Smaller particles, however, may reduce the
effectiveness of oxygen movement within the pile or windrow.
Optimum composting conditions are usually obtained with
particle sizes ranging from 1/8 to 2 inches average diameter.
5. Temperature
Composting will essentially take place within two tempera-
ture ranges known as mesophilic (50-105oF) and thermophilic
(over 105oF). Although mesophilic temperatures allow effective
composting, experts suggest maintaining temperatures between
110o and 150o. The thermophilic temperatures are desirable
because they destroy more pathogens, weed seeds and fly larvae
in the composting materials.
If the temperature of your compost pile is in the mesophilic
range, try mixing the pile. If the temperature still does not
reach the thermophilic range, review the factors described
above to determine whether one or more of the factors is limi-
ting the composting process. If you are still unable to increase
the compost’s temperature, the active stage of composting may
be complete.
6. Time
The length of time required to transform raw materials into
compost depends upon the factors listed above. In general, the
entire decomposition and stabilization of materials may be
accomplished within a few weeks under favorable conditions;
but, research at Utah State University has shown that 10-14
weeks of active composting for dairy cattle waste is more com-
mon. Active composting will change depending upon the
amount of natural moisture or water added to the compost,
turning frequency, materials being composted, and temperatures
reached.
Table 1. Guidelines for composting parameters.
Condition Reasonable Range*Preferred Range
Carbon to nitrogen (C:N)ratio 20:1-40:1 25:1-30:1
Moisture content 40-65%**50-60%
Oxygen concentrations Greater than 5%Much greater than 5%
Particle size (diameter in inches)1/8-1/2 Varies**
pH 5.5-9.0 6.5-8.0
Temperature (oF)110-150 130-140
Source: On-Farm Composting Handbook, Northeast Regional Agricultural Engineering Service (NRAES-54)
*The recommendations are for rapid composting. Conditions outside of these ranges can also yield successful results.
**Depends on the specific materials, pile size, and/or weather conditions.
Utah State University is an Equal Opportunity/Affirmative
Action Institution
Issued in furtherance of Cooperative Extension work, Acts of May 8 and
June 30, 1914, in cooperation with the U.S. Department of Agriculture,
Robert L. Gilliland, Vice President and Director, Cooperative Extension Service,
Utah State University. (EP/10-95/HBH)
Curing
When windrows or piles no longer reheat after turning, the
curing stage begins. The curing stage of compost usually lasts 3
to 4 weeks. Curing is a very important and often neglected part
of the composting process. Curing occurs at mesophilic
temperatures. The importance of curing increases if the active
composting stage is either shortened or poorly managed.
Immature compost can contain high levels of organic acid, a
high C:N ratio, and other characteristics which can be damag-
ing to crops and plants.
Compost as a soil amendment vs. fertilizer
Most plant nutrients in compost are in an organic form.
Although compost is not high in nitrogen, phosphorous, or
potassium, (it contains approximately 2% of each) these
nutrients are released slowly over a long period of time.
Nutrients become available to plant roots at a slower rate with
compost compared to inorganic fertilizers, therefore the
nutrients are less likely to leach out of the soil. Only a fraction
of the nitrogen, phosphorus, and potassium applied as compost
is usable by the crop the first year with more becoming avail-
able in the years that follow.
The real benefit of adding compost to the soil lies in its
ability to increase soil organic matter levels. Research studies
at the Connecticut Agricultural Experiment Stationa have
shown that a 1 inch thick layer of leaf compost annually applied
and incorporated into the soil over a 12 year period increased
the organic matter content from 5.9% to 12.6%. The same
studies have shown that the water holding capacity of the soil
was increased from 1.3 inches to 1.9 inches of water per foot of
soil after seven years of compost applications.
Other Benefits of Compost include:
•Improved manure handling •Possible saleable product
•Improved land application •Weed seed destruction
•Pathogen destruction •Lower risk of pollution problems
•Excellent soil conditioner •Possible revenue from tipping fees
a Maynard, A. A. & Hill, D. E. (1994). Impact of compost on vegetable yields.
Biocycle, 35(3), 66-67.
Action Plan and Tracking - 2022
Critical Outcome Indicators
Goal Number: 3 Outcome Area: Environmental Performances Goal: Compost Anaerobic Biosolids in the summer Objective: Due to the District losing its land application area, the District will be exploring different methods of biosolids disposal. Staff will create an anerobic compost pile in the summer and follow 40 CFR Part 503 regulations.
Specific Measurable Achievable Relevant Time Bound Create an anaerobic compost pile that meets 40 CFR part 503
The District will take 50-75% of the anaerobic sludge from July to August and divert into composting
Adequate staff time and budget will be made available for the goal.
Biosolids is part of the Biosolids value chain. Complete by December 31, 2022.

RESOURCES REQUIRED: Proper staff time and space will be allocated
RESPONSIBLE PARTY: Managers and Operation Staff will be involved
INTERESTED PARTIES
INVOLVED:
District Board, District Personnel, adjacent neighbors and rate payers.
Milestones Estimated Completion Date Actual
Completion Date 1. Create Anaerobic Compost Pile August, 2022 August, 2022 2. Evaluate regulation requirements for Compost pile. October, 2022 August, 2022 4. Have compost pile ready to sell with the aerobic compost in the spring of 2023 December 31, 2022
Action Plan and Tracking - 2022
Critical Outcome Indicators
Goal Number: 4 Outcome Area: Quality Biosolids Management Practice Goal: Control odor near the Dewatering Building Objective: The dewatering building has significant amount of odor around the building. There are two roads proposed near the dewatering building, exposing more people to possible odors. The District’s policy is to be a good neighbor to minimize odors.
Specific Measurable Achievable Relevant Time Bound Control Odor near the dewatering building by installing odor mitigation devices.
Reduce Odor by 50% near the dewatering building. Staff will note odors before and after odor mitigation is installed for one week.
Adequate staff time and budget will be made available for the goal.
Quality Biosolids Management Practices.
Complete by December 31, 2022.

RESOURCES REQUIRED: Proper staff time and budget will be allocated
RESPONSIBLE PARTY: Managers and Operation Staff will be involved
INTERESTED PARTIES
INVOLVED:
District Board, District Personnel, adjacent neighbors and rate payers.
Milestones Estimated Completion Date Actual
Completion Date 1. Contact odor mitigation vendors August, 2022 January 2022 2. Purchase odor mitigation devices October, 2022 August, 2022 4. Have odor mitigation in place and running December 31, 2022 October, 2022
STATEMENT OF WORK
ODOR CONTROL SYSTEMS
CENTRAL DAVIS SEWER DISTRICT
KAYSVILLE, UTAH
Prepared for Central Davis Sewer District August 2022
Prepared by
Weaver Consultants Group, LLC 6420 Southwest Blvd., Suite 206 Fort Worth, Texas 76109 817-735-9770
Weaver Consultants Group, LLC
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STATEMENT OF WORK – ODOR CONTROL SYSTEMS
Project Understanding In accordance with the communication and request of CDSD, WCG has prepared this Statement of Work for the following: 1. Compost Area System Expansion - Expansion of the existing stationary nonaqueous odor control vapor perimeter system to enclose the south and west sides of the compost area operation. 2. Southeast Perimeter System Installation - Design, delivery, installation, and startup of a second stationary nonaqueous odor control vapor perimeter system along the east side and southeast corner of the site. The system will be mounted to the site’s existing fence line along the east side of the site and turning the southeast corner to encompass potential odors from dewatering building. 3. Portable Machine and Dewatering Building Bay Doors System Installation – Design, delivery, installation, and startup of a portable nonaqueous vapor odor control system. The primary use of the system will be to connect to HDPE piping installed over the three bay doors of the dewatering building. However, it will also include fans that can be used for spot treatment around the site.
Project Description
Task 1 – Compost Area System Expansion WCG will design, deliver, and install materials required for expansion of the existing nonaqueous odor control vapor perimeter system to enclose the south and west sides of the compost area (refer to Figure 1). WCG will coordinate with CDSD for the delivery of the required equipment/materials to a specified location at the site. Upon delivery, WCG will mobilize two technicians for installation and startup of the system. WCG may require assistance from CDSD to provide necessary equipment and operators to assist with any infrastructure changes required for installation for the expansion of the odor control vapor perimeter system. WCG will bring the system into service utilizing chemical that will be provided by WCG. The following basic services are provided for the scope of this work.
Weaver Consultants Group, LLC
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Task 1.1 – Installation of Additional HDPE 32.5 SDR Pipe Under this task, WCG will perform the following work.
• Addition of approximately 1,120 linear feet of 4-inch HDPE 32.5 SDR pipe for vapor distribution along the south and west side of the composting area. Includes welding of pipe and installation of t-posts.
• Connection of system expansion to the existing nonaqueous odor control vapor perimeter system.
Task 1.2 – System Startup
• Perforation and plugging of the distribution pipe to maximize chemical dispersion. The pressure at the end of the distribution pipe will not fall below 5 inH2O.
Task 2 – Southeast Odor Control Perimeter Vapor System WCG will design, deliver, install and startup equipment and materials required for a nonaqueous odor control vapor perimeter system along the east side and southeast corner of the site (refer to Figure 1). WCG will coordinate with CDSD for the delivery of the required equipment/materials to a specified location at the site. Upon delivery, WCG will mobilize two technicians for installation and startup of the system. WCG may require assistance from CDSD to provide necessary equipment and operators to assist with any infrastructure changes required for the installation. WCG will bring the system into service utilizing chemical that will be provided by WCG. The following basic services are provided for the scope of this work.
Task 2.1 – Design of System Configuration Under this task, WCG will design a nonaqueous odor control vapor perimeter system and will coordinate with CDSD for the delivery of the system to the site. The following work will be performed based on the assumptions made for this task.
• Coordination with CDSD for electrical connections needed and performed by a certified electrician hired by CDSD, at no cost to WCG. 480V power supply with a minimum of 30A is required for the unit.
• Identification of a suitable location for installation of the unit.
Task 2.2 – Installation of Odor Control System Under this task, WCG will perform the following work.
Weaver Consultants Group, LLC
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• Installation of a small, 5 hp, odor control machine, which consists of a blower and electric motor with a VFD.
• Installation of a vapor production chamber including air atomization nozzle.
• Installation of an air compressor for use with air atomization nozzle in vapor production.
• Installation of a chemical heating system.
• Installation of chemical tote.
• Installation of approximately 880 linear feet of 4-inch HDPE 32.5 SDR vapor distribution pipe along the south and east side of the facility.
• Perforation of the distribution pipe to maximize chemical dispersion. The pressure at the end of the distribution pipe will not fall below 5 inH2O.
Task 2.3 – System Startup Under this task, qualified WCG representatives will commission the nonaqueous odor control vapor perimeter system. This work will be performed after all aspects of Tasks 2.1 and 2.2 have been completed. After initial startup of the system, CDSD site personnel will be informed and instructed on how to perform maintenance and will assume the responsibility of maintaining the system as required. WCG will assist with machine maintenance and upkeep when they are on site for future O&M.
Task 3 – Portable Machine and Dewatering Building Bay Doors
System WCG will design, deliver, install and startup equipment and materials required for a nonaqueous odor control vapor portable system. WCG will coordinate with CDSD for the delivery of the required equipment/materials to a specified location at the site. Upon delivery, WCG will mobilize two technicians for installation and startup of the system. WCG may require assistance from CDSD to provide necessary equipment and operators to assist with any infrastructure changes required for the installation. WCG will bring the system into service utilizing chemical that will be provided by WCG. The following basic services are provided for the scope of this work.
Task 3.1 – Design of System Configuration Under this task, WCG will perform the following work.
• Design a portable nonaqueous odor control vapor system and will coordinate with CDSD for the delivery of the system to the site.
Weaver Consultants Group, LLC
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Task 3.2 Installation of Odor Control System Under this task WCG will perform the following work.
• Installation of a portable vapor odor control system inside an enclosed trailer.
• Installation of a generator inside an enclosed trailer.
• Installation of a vapor production chamber including air an atomization nozzle.
• Installation of an air compressor for use with air atomization nozzle in vapor production.
• Installation of approximately 500 linear feet of 4-inch HDPE 32.5 SDR vapor distribution pipe along the (4) Bay doors at the dewatering building.
• Installation of an adapter pipe, which can be easily switched to go from providing coverage via spot treatment, to supplying up to 1,000 feet of distribution piping.
• Perforation of the distribution pipe to maximize chemical dispersion. The pressure at the end of the distribution pipe will not fall below 5 inH2O.
• Installation of a chemical heating system.
• Installation of chemical tote.
Task 3.3 – System Startup Under this task, qualified WCG representatives will commission the nonaqueous odor control portable vapor system. This work will be performed after all aspects of Tasks 3.1 and 3.2 have been completed. After initial startup of the system, CDSD site personnel will be informed and instructed on how to perform maintenance and will assume the responsibility of maintaining the system as required. WCG will assist with machine maintenance and upkeep when they are on site for future O&M.
Budget Table 1 provides a budget estimate for this proposal based on the above tasks. Upon obtaining a purchase order from CDSD, WCG will coordinate for the equipment manufacturing and delivery of materials and supplies to the site. The services will be performed on a lump sum basis consistent with the estimated budget presented in Table 1. Any part of the work that will not be performed will be communicated to CDSD and the estimated budget may be reduced accordingly. The estimated cost and proposed Statement of Work are based on WCG’s understanding of this project and information available to WCG at this time. If conditions change, unforeseen circumstances are encountered, or work efforts are redirected, the cost estimate may require modification.
Weaver Consultants Group, LLC
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Table 1 - Proposed Budget
Odor Control Systems
Task
Estimated Hours and Expenses Extended Cost
Staff Hours
Unit
Rate Subtotal Total
($/hr)
Task 1 – Compost Area System Expansion
Task 1.1 – Installation of Additional
HDPE 32.5 SDR Pipe
System Specialist III 16 $155 $2,480
$13,917
System Specialist II 16 $120 $1,920
4" SDR 32.5 Pipe (1,120 ft) including
delivery $6,530
Pipe fittings $200
T-Posts, U-bolts, and clamps $2,487
Miscellaneous Materials $300
Task 1.2 – System Startup System Specialist III 8 $155 $1,240 $2,200 System Specialist II 8 $120 $960
Task 1 Subtotal: $16,117
Task 2 - Southeast Perimeter Vapor System
Task 2.1 – Design of System
Configuration
Principal 4 $240 $960 $2,240 Project Manager 8 $160 $1,280
Task 2.2 – Installation of Southeast
Perimeter System
System Specialist III 32 $155 $4,960
$42,334
System Specialist II 32 $120 $3,840
Small Odor Control Vapor Machine $26,000
Pipe fittings $150
T-Posts, U-bolts, and clamps $1,954
4" SDR 32.5 Pipe (880 ft) including delivery $5,130
Miscellaneous Materials $300
Task 2.3 – System Startup System Specialist III 4 $155 $620 $1,100 System Specialist II 4 $120 $480
Task 2 Subtotal: $45,674
Task 3 - Portable Machine and Dewatering Vapor Perimeter System
Task 3.1 – Design of System
Configuration
Principal 4 $240 $960 $2,240 Project Manager 8 $160 $1,280
Task 3.2 – Installation of Portable and
Dewatering Vapor Perimeter System
System Specialist III 8 $155 $1,240
$83,065
System Specialist II 8 $120 $960
Portable Vapor Odor Control
Machine including delivery $75,000
Equipment Rental $1,800
4" SDR 32.5 Pipe (500 ft) including delivery $2,915
Pipe fittings $450
T-Posts, U-bolts, and clamps $400
Miscellaneous Materials $300
Task 3.3 – System Startup System Specialist III 8 $155 $1,240 $2,200 System Specialist II 8 $120 $960
Task 3 Subtotal: $87,505
Travel Expenses: $8,000
Project Total: $157,296
Weaver Consultants Group, LLC
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Proposal Assumptions and Additional Services WCG has developed the preceding project approach based on WCG’s understanding of the project. The following is a list of assumptions and additional services for CDSD current and future consideration.
• WCG will be authorized for the project in a timely manner so that all raw materials can be ordered and purchased to allow the delivery and startup of the machines in a timely manner.
• Note that significant delays are possible during manufacturing of the machine due to supply chain issues for number of components used for the manufacturing of the machine. If delays occur, WCG will notify CDSD of the updated timeline.
• It is assumed that electric power (480V and 30 A) will be readily available to connect to the system outlined in Task 2 upon WCG arrival.
• It is assumed that CDSD will provide assistance with moving the small odor control machine to the machine location.
• It is assumed that WCG will not generate any report, data, or plans for this project.
• This proposal does not include regulatory coordination, including updates to the current municipal solid waste and air permits for the site. WCG will provide SDS sheets for the chemicals if requested.
• This proposal does not include clearing and grubbing or any site preparation.
• Note that the odor control perimeter vapor systems do not use water and the chemical delivery system is designed for a specific chemical that is manufactured by WCG. WCG will not be responsible for the performance and/or effectiveness of chemicals not for the intended purpose. The ability of the system to evaporate chemicals has been tested only using specific chemicals manufactured and distributed by WCG. Therefore, if any other chemical is used, WCG will not be responsible for vaporization of the odor control chemical. Any damage caused to equipment by use of non-GOC chemicals will be the financial responsibility of CDSD.
• It is assumed that engineering modeling, other than pipe flow evaluation, for compressible flow in the proposed chemical delivery pipe will not be required for this project. This proposal does not include diffusion dispersion modeling; however, WCG can provide a separate proposal for diffusion dispersion (or pipe flow) if requested.
• If requested, O&M services will be included in a separate proposal.
Weaver Consultants Group, LLC
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• It is assumed that installation and startup for Tasks 1, 2, and 3 will be completed in one trip. If additional trips are required, a change order will be provided.
Manjot Masson <[e-mail]>
Site visit notes
Jill Jones <[e-mail]>Wed, Aug 31, 2022 at 5:05 PM
To: "Levin, Jesse" <[e-mail]>
Cc: "Gould, Kyle" <[e-mail]>, "Young, Chuck" <[e-mail]>, "[e-mail]"
<[e-mail]>
Jesse,
Thank you for the reminder email. The District is unable to move forward with the project at this time. We do not have the
power supply needed. We are probably 2 years away from having our power supply upgraded, depending on supply and
labor issues.
We appreciate your proposal.
Thanks,
Jill S. Jones
District Manager
Central Davis Sewer District
2200 So. Sunset Dr
Kaysville, UT 84037
801-451-2190 office
801-209-3463 cell
Virus-free.www.avast.com
[Quoted text hidden]
Virus-free.www.avast.com
Biosolids Internal Audit Report
Central Davis Sewer District

Audit Conducted By:
Jace Woodrow, Biosolids Coordinator, Operator, Internal Auditor, Central Davis Sewer District
Aimee Matthies, Lab Technical Director, Biosolids/Pretreatment POI, Internal Auditor, Central
Davis Sewer District
Jeff Canada, Pretreatment Inspector, Operator, Central Davis Sewer District
Torrey Hansen, Operator Trainee, Central Davis Sewer District
Dan Griffin, Environmental Engineer, Biosolids, DEQ, State of Utah

References:
National Biosolids Partnership (NBP) Third Party Verification Auditor Guidance
NBP National Manual of Good Practice
Central Davis Sewer District Biosolids EMS Manual

September 7, 2022
Introduction:
The purpose of the Central Davis Sewer District’s internal audit process is to identify
areas of improvement within the Biosolids Environmental Management Systems (EMS)
prior to and/ or between third-party audits. The audit was conducted against the
standards presented by the National Biosolids Partnership (NBP) through the EMS
program. The goal was to collect and review objective evidence that the District’s EMS
is performing as intended, that the procedures are being performed as documented and
that the EMS conforms to the NBP’s EMS Elements, the Code of Good Practice, the
EMS program objectives, and internal program requirements.

Audit Schedule and Scope:
The internal audit team consisted of Jace Woodrow, Aimee Matthies, Jeff Canada,
Torrey Hansen, and Dan Griffin. All titles and professional associations may be referred
to on the cover sheet of this report.
The selected documents were reviewed for conformance to the District’s Biosolids EMS
Manual. Listed below are documents reviewed:
• CDSD EMS Manual and associated appendices
• NBP EMS Report on Goals and Objectives- reporting year 2022
The audit team conducted document review on Elements 1, 2, 3, 5, 11, and 13 and
SOP’s 1, 8, 10, and 14 from the EMS.

Findings:
Opportunities For Improvement
• Element 1- Add the odor control flow chart
• Element 11- Add emergency response plan to the manual or reference the
SOP that has the plan. (SOP 15)
• Element 13- Digester records are kept in 3 places instead of 2 (outside the
laboratory as well as in the Digester room)
• Element 13- Biosolids reports will be kept in Aimee’s office rather than the
Engineer’s office.
• SOP 1- Include belt press as a sampling location
• SOP 1- Change the attached bench sheet and wording
• SOP 8- Change increment dosing from 0.5 gallons to 1 gallon per ability of
instrument
• SOP 10- Add water hose as a source of dust control for grinder
• SOP 14- Change minimum digester level to 13.5 instead of 15.5 ft
• SOP 14- Notify Assistant Manager (Manjot) rather than the Engineer
• Add signs for “Authorized Personnel Only” and “Biosolids land application”
signs at the following locations:
o The southeast gate
o The new gate for the West Davis Corridor
o Along the new chain link fence on the west side of the property
o On the east fence closest to the houses
o On the main entrance road fence
• Add “Critical Control Point” labels and/or signs at the following locations:
o On the odor blower shed
o The new and old dewatering buildings
o The digester
o The Alum for both the Trickling Filter and the Oxidation Ditch
o The hypochlorite
o The chlorine
o The utility water
Conclusions:
Central Davis Sewer District has committed to a tremendous use of time, energy, and
manpower towards certification through the National Biosolids Partnership (NBP). The
commitment to the EMS by the team at CDSD should be recognized for their dedication.
Auditors for this year determined that most of the findings they had were grammatical
and/ or wording changes due to changes in staff responsibilities and titles. The only
actionable changes for the plant were those that included the need for more signs to be
posted around the plant at appropriate areas for “Authorized Personnel” and “Biosolids
Land Application Site” signage and “Critical Control Point” labels. These findings are
minimal and the documents were reviewed and discussed to ensure details were clearly
understood by the team and any needed corrections submitted before adjournment.
Jill Jones
District Manager Central Davis Sewer District Wastewater Treatment Facility 2200 S. Sunset Dr. Kaysville, UT 84037
October 21, 2022 Dear Jill,
It was once again a pleasure working with you and the rest of the Central Davis Sewer District (CDSD) Biosolids Environmental Management System Team during your interim audit conducted October 19 through October 21, 2021. As a result of the audit there were no major non-conformances, no minor non-conformances, 7 opportunities for improvement and 2 positive observations or commendations. The CDSD Program is a mature, strong and well-maintained
management system, and has demonstrated continual improvement.
The following are the opportunities for improvement and positive commendations based on the audit. They are listed in accordance with the corresponding numbers associated with the minimum conformance standards contained in the Third-Party Verification Auditor Guidance.
Element 2 – Positive Observation – The CDSD Board of Trustees has established a benchmark
management leadership program, which other wastewater agencies should emulate. The Board is not only knowledgeable regarding the Biosolids Management Program but also actively supports the National Biosolids Partnership Code of Good Practice. All members of the Board are very knowledgeable about biosolids and the importance of implementation of an effective
management system.
Element 5 – Opportunity for improvement - the standard requires that each program goal use the SMART criteria (Specific, Measurable, Achievable, Relevant and Time Bound), and that action
plans that describe those improvement activities it is pursuing to achieve biosolids goals and
objectives; designating in the action plan schedules, milestones, resources, and responsibilities for achieving the program goals. Overall – Consider including more specific details in the resources requires, such as an estimated cost, as opposed to “proper staff time and travel budget will be allocated”
Goal #1 – Providing training for staff members on internal EMS audit procedures was not a
strong goal related to “regulatory requirements” and would normally be conducted as part of the EMS Training included in CSDS Element 8: Training Procedure. (As discussed during the audit consideration might be given to establishing a goal similar to one in the past to reduce pump plugging near the prison to no more than one incident per year, with
the action plan requiring the prison to install pretreatment screening of their wastewater prior to
discharge to the CSDS collection system.)
Goal #3 – Composting “Anaerobic Biosolids” in the Summer could be more clearly identified as “Reducing the number of truckloads of biosolids land applied from XX per year to zero.” Goal #4 – Control of Odor Near the Dewatering Building. Although determined to be technically
infeasible at this time, if at some time in the future it becomes once again desirable, consider specifically identifying the methodology of measurement to be used, and the numerical target established as the objective. Element 7 – Positive Observation – The CDSD Board appointed the District Manager as the
individual with the overall responsibility of ensuring the BMP is implemented and maintained. The District Manager and the Assistant District Manager have worked hand in glove to ensure every detail of the management system operates at optimum efficiency, and they should be recognized for their dedication to the program and its achievements.
Requirement 7.1 – Opportunity for improvement – The standard requires the establishment and maintenance of records of the assigned roles and responsibilities for the BMP and biosolids management activities. These records must define the roles and responsibilities of employees for performing biosolids management activities and BMP functions. One of the key components of Element 12 of the standard addresses appropriate preventive maintenance procedures and work
management systems for maintaining equipment, instrumentation, vehicles and other treatment technology and process control systems associated with biosolids management activities. Consider including in the CDSD Element 7 Procedure: Roles and Responsibilities “the Facility Maintenance Manager.”]
Element 11 – Opportunity for improvement – Place an Effective Date on the Emergency Response Plan. Requirement 12.2(b) – Opportunity for improvement – the standard requires program
documentation and documents be created following established document creation procedures.
In item 3 of the Document Creation Procedure within the CDSD - BMP Element 12: Documentation, Document Control & Recordkeeping Procedure consider clarifying that if the document does not change the general EMS program, but supplements existing operation, once review, and any needed modifications are made, the document will be approved by the District
Manager and issued for use.
Requirement 14.5 – Opportunity for improvement – In Element 14: Nonconformance – Preventive & Corrective Action procedure 4, consider clarifying that the completion date, or the proposed completion date, will be identified in the document entitled “Third Party Audit
Response” or “Internal Audit Response” prepared to address the opportunities for improvement.
Requirement 14.5 – Opportunity for improvement – Review each of the responses to the opportunities for improvement identified in the 2022 internal audit and determine if any additional clarification would be beneficial in the “Responses” to the observations.

Requirement 15.1 – Opportunity for improvement – The standard requires a periodic Biosolids Management Program Report (at least annually) summarizing the performance of the biosolids management program. The report shall contain appropriate summaries of monitoring,
measurements and other results that demonstrate the performance of the biosolids program relative to its goals, objectives and legal requirements. The report shall provide summaries of performance relative to other voluntary adopted requirements, the organizations progress toward
achieving its biosolids program goals and objectives, and summary of its independent third party audit results. The CDSD EMS Element 15 procedure specifically addresses each one of these requirements. The 2020 Biosolids Management Report does not adequately address in sufficient detail the results of the internal and third party audit results and could improve the details on the progress being made on accomplishment of the goals and objectives. Additionally, consider
including more positive examples of how the EMS has improved public communications, plant operations and cost savings associated with attainment of goals and objectives. Based on the results of the interim audit it will be recommended that the CDSD maintain its platinum plus level recognition certification status.
If you have any questions, please contact me. Thanks again, and keep up the excellent work. Very truly yours,
William R. Hancuff Lead Auditor NSF International Strategic Registration, Ltd. 12509 Kings Lake Dr.
Reston, VA 20191 703-585-4799
11/16/22

RESOLUTION NO. 2023-02-01 A RESOLUTION OF THE BOARD OF TRUSTEES OF THE CENTRAL
DAVIS SEWER DISTRICT ADOPTING THE 2022 ANNUAL BIOSOLIDS REPORT FOR THE DISTRICT WHEREAS, the Central Davis Sewer District is required by its EMS, by its UPDES permit, and by 40 CFR Part 503 to approve the Annual Biosolids Report for 2022; and
WHEREAS, the 2022 Annual Biosolids Report has been distributed to Board members for
review prior to the February 09, 2023 Board Meeting.
NOW, THEREFORE, BE IT RESOLVED BY THE BOARD OF TRUSTEES OF THE CENTRAL DAVIS SEWER DISTRICT AS FOLLOWS:
Section 1. Approval of the 2022 Biosolids Annual Report. The Board of Trustees of
the Central Davis Sewer District hereby accepts and approves the 2022 Annual Biosolids Report.
Section 2. Chair Authorized to Sign. The Board of Trustees of the Central Davis Sewer District hereby authorizes the Chair of the Board of Trustees to sign and execute this resolution on behalf of Central Davis Sewer District.
Section 3. Effective Date. This Resolution shall become effective immediately upon its
passage.
PASSED AND ADOPTED BY THE BOARD OF TRUSTEES OF THE CENTRAL DAVIS SEWER DISTRICT ON THIS 09th DAY OF February 2023. CENTRAL DAVIS SEWER DISTRICT
ATTEST:
_________________________________ By:____________________________________ Clerk Chair, Board of Trustees