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HomeMy WebLinkAboutDWQ-2025-003203pu,. March 17,2025 Time In Time Out Facility Name Timponosos SSD \ AruTP Mailing Address PO Box 923 American Fork, Utah 84003 E-mail contacr/Title Richard Mickelsen, District Manager BIOSOLIDS F'ACILITY INSPECTION GENERAL INFORMATION trn GPD Reason for Inspection: I Routine lComplaint Type of Facility I Approved Pretreatment Program trn POTWFIow> I MGD Domestic Wastewater Treatment Works > 2000 Other Reuse Effluent (other than at facility) Method of Solids Disposal ! Land Application (beneficial use) E euk Ag Land _%Compost %o Other % pnon" (801) ffi Surface Disposal Discharge permit # UT0023639 En Landfill Transferred to Another Facility Biosolids permit # UTL023639 Dan Griffin/State PERMIT VERIFICATION trvINEN/A l. Are 40 CFR Part 503 sludge use and disposal requirements contained in:[NfofS Permit? lNeOfS Sludge Only Permit? EPA REGION 8 General Permit? EPA Region 8 Individual Permit? Encn,q Subtitle C permit? Effective date(s) of applicable permit 07t08t2020 06t30t2025 2 Annual Sludge Production 6108 (mt/yr,T/yr) last calendar year 2024 tr V n N n N/A 3. Are number and location of disposal sites/activities described in permit or approved management plan? RECORDKEEPING AND REPORTING EVALUATION tr V tr N n N/A 4. Are records available for all use or disposal practices? XI V tr N n N/A 5. Are the number and location of sludge disposal sites available? (i.e., location maps) tr V tr N n N/A 6. Are self-monitoring data available for all regulated pollutants? I V n N I N/A 7. Are Pathogen and Vector Attraction Reduction method desqiptions and certiflcation statements available? I v I N ! N/A 8. Are accurate records of sludge volume or mass maintained, where appropriate? tr V n N E N/A 9. Are self-monitoring activities conducted at required frequencies? (See Figure-l) Page 1 ofll FIGURE - 1 FREQUENCY OF BIOSOLIDS SAMPLE COLLECTION AND ANALYSIS RECORDKEEPING AND REPORTING EVALUATION CONTINUED EvlN!Na lo. Are sludge records maintained for at least 5 years? Maintained by facility Maintained by Contractor Other Concentration of each pollutant Certification for both Pathogen and Vector Attraction Reduction Description of how Class A/B requirements are met Description of how Vector Attraction Reduction requirements are met EvfNEN/A ! Description of site restrictions (if applicable) ! Site locations, area, date,time and amount of sludge applied (if applicable) 1 l. Are sludge data reported to the appropriate regulatory authority? If so, how often? Annualy SLUDGE SAMPLING AND ANALYSIS EVALUATION 8 V n N n N/A 12. Are sludge sampling locations appropriate for obtaining a representative sample? I V n N E N/A 13. Is sampling equipment adequate? Sample collection procedures: Sample volumes obtained? Preservation techniques used? Types of Containers Used? Samples analyzed, in the appropriate time frames? nn ! Adequate number of samples to obtain a representative sample? fl Sampling and Analysis Plan Available? I V n N E N/A 15. Are results reported on a dry weight basis? If no, how? 8 v n N n N/A 16. Were percent total solids analyzed? tr V n N n N/A 17. Are chain-of-custody procedures properly employed? I V n N n N/A 18. Are chain-of-custody records available on site? GENERAL SLU DGE PROCESSES Describe the sludge process control at the facility n V n N n N/A 20. Does the facility have sludge back-up units/equipment? Describe Minimum Frequency of Monitoring (40 CFR Part 503.16, 503.26. and 503.46) Amount of Biosolids Disposed Per Year Monitoring Frequency Dry US Tons Dry Metric Tons Per Year or Batch >0to<320 >0to<290 Once Per Year or Batch >320to < 1650 > 290 to < 1,500 Once a Quarter or Four Times > 1,650 to < 16,500 > 1,500 to < 15,000 Bi-Monthly or Six Times > 16,500 > 15,000 Monthly or Twelve Times Page 2 of11 w X N ! Nle 21. Does the facility have adequate storage capacity (>30 days)? Describe Ft nN ! N/A 22. Arethere contingency plans for sludge disposal? Describe il"lNlN/A 23. Is the solids handling operation adequate to manage volume of sludge? Explain LAND APPLICATION OF BIOSOLIDS 1. Biosolids Beneficial Use practice(s) n gutt biosolidsnnT Bulk material derived from biosolids Sold or given away in bag or other Other 2. Biosolids or material derived land applied to: Agricultural Land Reclamation Site ! Lawn or Home !Foresttr puutic ite (park, golfcourse, etc.) Other 8 V n N [l N/A 3. Are pollutant concentrations below ceiling concentration values shown in Figure 2 Below (Table I)? tr V n N n N/A 4. Do monitoring results show pollutant concentrations below limits in Figure 2 Below (Table III)? FIGURE 2. POLLUTANT LOADING LIMITS PATHOGEN CRITERIA 5. Classification of Biosolids with respect to Pathogens: nClasse EClassB IUnknown nvtrNEN/A 6. Are the appropriate Class A or Class B Pathogen Reduction requirements being met for the disposal practice? Class A requirements must be met when bulk biosolids are sold or given away to the public for lawn or home garden use or when bagged or containerized (one metric ton or less) biosolids are sold or given away. Also, Class A requirements or Class B Page 3 of11 Pollutant (40 CFR Part 503.13) Dry Mass Basis Heaw Metals Table I Table2 Table 3 Table 4 Ceiling Concentration Limits, (me/ke) Cumulative Pollutant Loading Rates, (ms/ha) Pollutant Concentration Limits. (me/ke) Annual Pollutant Loading Rates, (me/ha-yr) Total Arsenic 75 4l(37 lbs/ac)4l 2.0 Total Cadmium 85 39(35 lbs/ac)39 1.9 Total Copper 4,300 1.500(1.335 lbs/ac)I 500 7.5 Total Lead 840 300(26E lbs/ac)300 l5 Total Mercury 57 l7(15 lbs/ac)17 0.85 Total Molybdenum 75 TotalNickel 420 420(375lbslac\420 2l Total Selenium 100 100(89 lbs/ac)100 5.0 TotalZinc 7,500 2.800(2.500 lbs/ac)2800 140 requirements with appropriate site restrictions must be met when bulk or bulk derived material from biosolids is applied toagricultural land, reclamation sites, forests or other public contact sites. 7. Indicate which method is used to meet Class A or Class B requirements: Class A Class B A-l Time and Temperature A-2 Alkaline Treatment A-3 Prior Testing (EV & VHO) A-4 No Prior Testing (EV &VHO) A-5 PFRP f] n-0 Equivalent PFRP CLASS A RECORDKEEPING CHECKLIST (SKIP IF CLASS B) Alternative A-l Time and Temnerature Analytical results are for density of: E e-t Fecal Coliform < 2,000,000 MPN or CFU B-2 PSRP B-3 Equivalent PSRP ! Salmonella sp. Bacteria (#/4 g) OR Z.lyo ZrlN %OC OF I uln ! Fecal Coliform (MPN) Time temperature maintained _ Days Hours Minutes Alternative A-2 Alkaline Treatment ENra Analytical results are for density of: ! Salmonella sp. Bacteria (#/4 g) OR ! Fecal Coliform (MpN) trtrtr nnnn Sludge percent Solids Sludge temperature Sludge pH (logs of pH from beginning, middle Time pH maintained > l2 (minimum 72 hours) and end of treatment) >12 S.U Hours Logs of sludge t€mps from beginning, middle, end and hourly - Minimum 12 hours > 52"C (125.6 "F) Percent solids in sludge after drying _ > 50yo Alternative A-3 Prior Testins E Nre Analytical results are for density of ! Sahonella sp. Bacteria (#/4 g) OR ! Fecal Coliform (MpN) Analytical Results (prior to pathogen reduction and, when appropriate, after treatment): n Density of.Enteric Viruses (l plaque forming unit per + giami of total solids) n Viabte Helminth Ova (l per 4 grams oftotafsolidJ) ! Oetailed Sampling and Analysis Plan Available Values or range ofvatues for operating parameters to indicate consistent pathogen reduction treatment Alternative A-4 No Prior Testine E NIA Analytical results are for density of: I Salmonella sp. Bacteria (#/4 g) OR ! Fecal Coliform (MPN) ! Analytical Results (prior to pathogen reduction and, when appropriate, after treatment):n Density of Enteric Viruses (l plaque forming unit per + giami of total solids) E Vlabte Helminth Ova (l per 4 grams of totafsolids) ! Oetailed Sampling and Analysis Plan Available Alternative A-5 Process to Further Reduce Pathoeens (PFRP) E NIA Heat Drying nNle Analytical results are for density of: ! Salmonella sp. Bacteria (#/4 g) OR ! Fecal Coliform (MPN) Moisture content of dried sludge _ < l07o Logs documenting temp of sludge particles or the wet bulb temp of gas in contact is > 80'C (176 "F) (continuous reading or once per shift, minimum 2 readings per day) n Page 4 of11 Thermophilic Aerobic Digestion n UIA Analytical results are for density of: ! Salmonella sp. Bacteria (#/4 g) OR E Fecal Coliform (MPN) n Dissolved oxygen concentration in digestertr Temperature logs 55 oC <:> 60 "C (131 oF <:> 140'F)tr Mean Cell Residence Time (MCRT) l0 days running average - days (see equations below) For complete mixed, constant feed & withdrawal with decanting: 0, - u" qcq v : reactor volume q : flow rate leaving cv : concentration of solids in reactor Cq: concentration of solids in existing sewage sludge 0n: MCRT (running average solids residence time) For batch withdrawal, daily step feeding and decanting: 0n = t!:::) ' t(6s) ^ X(Vi*Ci*Ti)Ull=--#E(Vi*Ci)or 6s: an increment of sludge solids that leaves the reactor 0: time period this increment has been in the reactorVi : volume of daily batch feed (incremental) to digester Ci: average concentration of solids in daily feed stream Composting n Nle Analytical results are for density of: ! Salmonella sp. Bacteria (#/4 g) OR ! Fecal Coliform (MPN) composting method: ! windrow I static Aerated pile ! within -vessel I other ! Temperature logs: > 55'C (131 'F) for 3 days if within-vessel or static aerated pile method (continuous reading or one reading per shift, minimum 2 readings per day)! Temperature logs: > 55'C (131 "F) for l5 days if windrow method (one reading per shift, minimum 2 readings per day) ! Records of pile turnings - minimum of 5 if windrow method Gamma Ray lrradiation n Nle Analytical results are for density of: ! Salmonella sp. Bacteria (#/4 g) OR n Fecal Coliform (MpN) nn Gamma ray isotope used Ambient room temperature log (continuous reading or one reading per shift, minimum 2 readings per day) (e.g., Cobalt 60 or Cesium 137) Alternative ,{-6 PFRP Eouivalent lillNlA Analytical results are for density of I Salmonella sp. Bacteria OR ! Fecal Coliform (MPN) ! Operating parameters or pathogen levels as necessary to demonstrate equivalent PFRP (must have written approval from EPA Region 8 and the Pathogen Equivalency Committee (PEC)) Records Documenting Sampling and Analysis for Salmonella sp. Bacteria or Fecal Coliform and Percent Solids Sampling Records I Dates and times of samples collected ! Sampling locations documented n Sample types listed f] Sample types appropriate ! Sample volumes recorded ! Names of persons sampling recorded ! types of sample containers listed ! Sample containers appropriate n Vethods of preservation including cooling ! Sampling quality assurance/quality control (QA/QC) available Page 5 of11 trntr Analytical Records nn Date and time of sample analysis Name of analyst Analytical methods used Analyses and calculation results properly documented or verifiable All analyses are reported on a dry weight basis Name of Contract Laboratory, if applicable: lAnalytical quality assurance/qualify control (QA/QC) available ! Analytical results available CLASS B RECORDKEEPING CHECKLIST (SKIP IF CLASS A) Alternative B-l Fecal Coliform Count I Analytical results for density of fecal coliform collected for each sample f] Number of samples collected over two-week period (7 minimum) E Nle ! Geometric Mean Calculation < 2,000,000 MPN or CFU (Standard Methods 9221E or 9222D) Root of the product of n factor - G.M. : (X, * X, * X, * Xa *...Xn) t'n Common Log Factor - G.M. : Antilog [(Log1sXl ] Log;sX2 * LoglsX3 ... + LogloXn)/n] X : Fecal Coliform Density (dry weight basis) n: number of samples Required Site Restrictions. n puUtic Access ! Harvesting I Grazing Alternative B-2 Process to Sienificantly Reduce Pathoeens (PSRP) E NIA Aerobic Digestion ENle ! Dissolved oxygen concentration profile I total Solids obtained and the feed and withdrawal streams ! Mean Cell Residence Time (MCRT) calculations of sludge in digester (see equations below) For complete mixed, constant feed & withdrawal with decanting: 0n =H V: reactor volume q: flow rate leaving Cv: concentration of solids in reactorCq: concentration of solids in existing sewage sludge 0n: MCRT (running average solids residence time) For batch withdrawal, daily step feeding and decanting:,n _ E(6s*0) E(6s) ^ X(Vi*Ci*Ti)Hn=-t(vi*Ci)or 6s = an increment of sludge solids that leaves the reactor 0 : time period this increment has been in the reactor Vi : volume of daily batch feed (incremental) to digester Ci : average concentration of solids in daily feed stream ! Temperature logs - 60 days @ 15'C (59 "F) to 40 days @ 20.C (68 "F) (continuous reading or once per shift, minimum 2 readings per day) Required Site Restrictions n pubtic Access ! Harvesting Page 6 of11 E Grazing Air Drying n Description of drying bed design (sand drying beds, paved, unpaved etc.) Depth of sludge on drying beds _ (in, ft) Drying time in days _ > 3 months Daily average ambient temperature logs (2 of 3 months, ambient temp > 0'C (32 "F) Required Site Restrictions ! pubtic Access ! Harvesting ! Grazing n NieAnaerobic Digestion I total Solids obtained and the feed and withdrawal streams n Mean Cell Residence Time (MCRT) calculations of sludge in digester (see equations below) For complete mixed, constant feed & withdrawal with ^ VCvfln=-qcq Vi : volume of daily batch feed (incremental) to I Temperature logs - 25 days @35 "C (95"F) to "C (13 l"F) and 60 days @ 20'C (68'F) (continuous reading or once per shift,2 readings per day) Required Site Restrictions. ! eublic Access tr f, Grazing V : reactor volume q : flow rate leaving Cv : Cq = concentration of solids in existing sewage sludge For batch withdrawal, daily step feeding and decanting: 6s: an increment ofsludge solids that leaves the reactor Composting Composting method: ! Windrow n Required Site Restrictions. ! pubtic Access I Harvesting Lime Stabilization ! Raised pH> 12 after 2 hours of contact Liquid Sludge n Quantity of Sludge and Alkali ofsolids in reactor 0n: MCRT (running average solids residence time) on = j(6ry#^ E(Vi*Ci*Ti)Un=-t(Vi*Ci) tr Nla Aerated Pile E Wittrin -vessel f] Other or 0 : time period this increment has been in the reactor Ci: average concentration ofsolids in daily feed stream Temperature logs: > 40 "C (104 "F) for 5 (continuous reading or one reading per shift, minimum 2 readings per day) Demonstration that for 4 consecutive hours the 5 days the temperature exceeded 55 "C (l3l"F) Single grab, pH at 0 hr. S.U. @ Temperature of sample oC/oF ! Grazing nNle Dewatered Sludge (Cake) ! Quantity of Sludge and Alkali 5 min. composite, pH at 0 hr._S.U.@2 hr._S.U Temperature of sample oC/oF (temp correction) hr. S.U correction) pH correction for temperature other ltor _ (-0.03 pH Units*(z5ec-TmeasuredeC)) 1.0sc pH new : pH measured - pH Page 7 ofll Alternative B-3 PSRP Equivalent ENle ! Operating parameters or pathogen levels as necessary to demonstrate equivalency to PSRP ! Operating parameters or pathogen levels as necessary to demonstrate equivalent PFRP (must have written approval from EPA Region 8 and the Pathogen Equivalency Committee (PEC) Required Site Restrictions (see Figure 2 on back of this page) n Puttic Access n Harvesting Records Documenting Sampling and Analysis for Fecal Coliform and Sampling Records ! Dates and times of samples collected Sampling locations documented Sample types listed Sample types appropriate Sample volumes recorded Names of persons Types of sample listed Sample containers Methods of including cooling Sampling available Name of Records Date and time of sample analysis Name of analyst Analytical methods used Analyses and calculation results properly documented or verifiable All analyses are reported on a dry weight basis Analytical results available Analytical QA/QC available nntrntrnn Laboratory, if applicable: VECTORA REDUCTION METHODS ! V E N E N/A 8. Is a Vector Attraction Reduction method practiced? One of the VAR methods 1-10 must be used when land applying bulk biosotids to agricultural land, forest, a public contact site or a reclamation site. One of the methods 1-8 must be used when distributing bulk, bagged or containerized biosolids for public or lawn or home garden use. 9. Indicate Vector Attraction Reduction Method used a t - :aX Volatile Solids Reduction 2 - Anaerobic Bench Scale Volatile Solids Reduction 3 - Aerobic Bench-Scale Volatile Solids Reduction 4 - Specific Oxygen Uptake Rate (SOUR) 5 - Aerobic Process 6 - Alkaline Stabilization 7 - Moisture Reduction without Unstabilized Primary Solids 8 - Moisture Reduction with Unstabilized Primary Solids 9 -Subsurface Injection l0 - Soil Incorporation VECTOR ATTRACTION REDUCTION RECORDKEEPING CHECKLIST Option I - Volatile Solids Reduction (VSR)ENla Log data shoWing VS concentration of raw and withdrawal sludge stream. Composite sample Test Method (SM 2540G) for Total Solids and Total Volatile Solids Holding time and preservation followed (24hrs 4 "C for TVS) Calculation showing > 387o reduction of volatile solids using the Van Kleeck Equation (see below) nnntrtrntrnn VSin-VSoutv.\K =VSin-(V Sin*V Sout) Page 8 of11 VS;n : Fractional VS in feed stream VSout : Fraction of VS from bottom stream Fractional VS : Fraction of VS vs. Total Solids 4 Ontion 2 - Anaerobic Bench-Scale Volatile Solids Reduction ! Description of bench-scale digester E Nia nn Temperature logs (at least two per day) showing l5-100 ml flasks flushed with N2 Log showing results of random test of 5 flasks for TS Test method (SM 2540c) for TS & TVS Calculation showing < 17 o/o reduction of volatile 7SR VSin-VSout=_VSin-(V Sin*VSout) VSln: Fractional VS in feed VSout : Fraction of VS from 50 ml in each 100 ml flask between 30 "C - 37'C (86 "F - 98.6 oF) at0,20, & 40 days using the Van Kleeck Equation (see below) stream Fractional VS : Fraction of vs. Total Solids Ontion 3 - Aerobic Bench-Scale VS Reduction ! Description of bench-scale digester ENtn trnnnntrn Collection of 12L of sludge by adding distilled water daily) @2%oIf dilution was required, what was Log showing D.O. at least 2 mg/l & TVS effluent)\ Calibration records for D. O. meter Temperature logs (at least two showing temperature maintained at20'C (68'F) Log showing results of TS & Test method (SM 2540G) for (2 sets every week for 5 weeks) Calculation showing < 15 o/o of volatile solids using the Van Kleeck Equation (see below) ySR = vsin-vsout VSin-(V Sin*V Sout) VSin:VS in feed stream of VS from bottom streamVSou, : Fractional : Fraction of VS vs. Total Solids El Nre Collection of sample ml, L, gal.) Times when samples collected & tests performed (1 hour holding) D.O. readings for Temp readings at samples for l5 minutes or less (0 l5 min)D.O. calibration records and end ofprocedures emp correction performed if not at 20'C (68'F) Log showing Calculations TS for sludge sample (g/l)Test method (SM 2540G) for TS & TVS SOUR < 1.5 mgO2lhrlgTS (2 sub samples)Avg. of 7 or more calculations Test Method SM 10B (Apparatus, Procedure and Calculation), modified by White House Manual (pg. 95) E Nra showing aerobic process time _ > 14 days! Temperature (continuous or at least two per day) showing average temperature > 45 "C (l l3 "F) and minimum temperature > 40 oC (104'F) for 14 consecutive days Page 9 of11 Ontion 6 - Alkaline Treatment E Nle Log demonstrating pH > l2 S.U. for 2 hours in every batch Log showing pH remains > I 1.5 for 22 hours without additional alkali demonstration of adequate mixing) Test intervals at 0, 2, 24 hows Amount of sludge treated ., lbs) ! Amount of added s., gal.) Liquid mixture - grab sample, pH testing in each batch ncate-s composite, several pH tests per day Option 7 -Moisture Reduction without Unstabilized Primarv Solids E N/A ! Description of method used to air dry the sludge ! Results of percent solids (dry weight)test n Test Method SM 2540G for TS E NraOption 8 - Moisture Reduction with Unstabilized Primarv Solids ! Description of method used to air dry the sludge ! Results of percent solids (dry weight)test > 90%Z Test Method SM 2540G for TS Option 9 - Subsurface lniection ! Documentation of compliance (copy of field notes - how and injection, no significant amount on surface after t hour)! tf Class A - must be injected within 8 hours of discharge Eil NIe class A or B, time elapsed between pathogen reduction pathogen reduction process Option 10 - Surface Annlication with Incornoration I Documentation of compliance (copy of field notes - reduction incorporation) E Nre incorporated, class A or B, time elapsed between pathogen Surface applied must be incorporated within 6 hours placed on the land If Class A - must be incorporated within 8 hours of scharge from pathogen reduction process FOR METALS Sampling Records ntr Dates and times of samples collectpd Sampling locations documented 7 Sample types listed / Sample types appropriate ! Sample volumes recorded I Names of persons sampling recorded Types of sample containers listed Sample containers appropriate /Methods of preservation including,6ooling Sampling QA/QC available .r Name of Contract Laboratory, if applicable nn!nn RECORDS DOCUMENTING SAMPLING AND Date and time of sample analysis Name of analyst Analytical methods used Analyses and calculation results properly documented or verifiable All analyses are reported on a dry weight basis Analytical results available Analytical QA/QC available COMMENTS Page 10 of11 METALSWORKSHEET trvEN!Nrn EvnNlNre EvtrNENrn nvtruENra COMMENTS ^J /3 r"s e /, If A > B then bulk biosolids or biosolids in a bag or other container CAN NOT be beneficially used If A = C then High Quality (HQ) Biosolids If A < B then bulk biosolids or biosolids in a bag or other container CAN be beneficially used If A > C then documentation of site loadings t A B C D E Pollutant Actual Sludge Concentration me/ke Table I Ceiling Concentration me/ks Table III Pollutant Concentration me/ke Table II Cumulative Pollutant Loading Rate ks./ha Table IV Annual Pollutant Loading Rate kelha/yr Sample Preparation & Analytical Methods sw-846 Preservation and Holding Time Sample Type 500 ml As 6.3 75 4t 4l 2.0 3050/305 1 + 60101706U7060 Cool 4oC 180 days Composite 32 Cd 1.3 85 39 39 1.9 3050/305 l+ 6010/713U7r30 Cool 4"C 180 days Composite 5.7 Cu 211 4,300 1,500 1,500 75 3050/305 l+ 601017210 Cool 4"C 180 days Composite 403 Pb 22 840 300 300 l5 3050/305 I + 60101742v7420 Cool 4"C 180 days Composite 31.8 Hg 0.59 57 17 l7 0.85 747v7470 Cool 4"C 28 days Composite 15 Mo 13 75 3050/305 1 + 60101748117480 Cool 4"C 180 days Composite 80 Ni 21 420 420 420 2l 3050/305 1 + 601017520 Cool 4"C 180 days Composite 80 Se 8.6 100 100 100 5.0 3050/305 1 + 60101774l/7740 Cool 4"C 180 days Composite 34 Zn 297 7,500 2,800 2,800 140 3050/305 1+ 601017950 Cool 4"C 180 days Composite 601 4 e6 0 Page 1l ofll CL>/ <-