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HomeMy WebLinkAboutDWQ-2024-000877Official Draft Public Notice Version Month Day, year The findings, determinations, and assertions contained in this document are not final and subject to change following the public comment period. FACT SHEET AND STATEMENT OF BASIS TOOELE CITY RECLAMATINO FACILITY RENEWAL PERMIT: DISCHARGE, BIOSOLIDS, & REUSE UPDES PERMIT NUMBER: UT0025445 UPDES BIOSOLIDS PERMIT NUMBER: UTL025445 MINOR MUNICIPAL FACILITY CONTACTSOperator Name:Tooele City CorporationPerson Name:Debbie WinnPosition: MayorPerson Name:Jamie GrandprePosition:Public Works DirectorPhone Number:(435) 843-2148Facility Name:Tooele City Reclamation FacilityMailing and Facility Address:90 North MainTooele, Utah 84074Telephone:(435) 882-1952 Actual Address:3300 North 1200 West DESCRIPTION OF FACILITY The Tooele City Reclamation Facility (Tooele) is located at 3300 North 1200 West, Tooele, Utah and serves the City of Tooele with the outfall located at latitude 40º35'40" and longitude 112º19'40". The design capacity is 3.4 MGD, population equivalent of approximately 39,000, and influent organic loadings of 200 mg/L each for biological oxygen demand (BOD5) and total suspended solids (TSS). Present flow is approximately 2.3million gallons per day (MGD) on average and up to a peak hourly flow of 11 MGD. The current UPDES permit is limited to 3.4 MGD. This limit applies only to any effluent that might be discharged to the ditch, and not to any Reuse water that might be used. The facility consists of a headwork’s with an automatic bar screen and grit removal system, 2 oxidation ditches, 3 final clarifiers, 2discfilters, 1 chlorine contact basins, 1 ultraviolet (UV) facility with multiple UV channels and banks, 2 holding reuse ponds with pump stations, 1 gravity sludge thickener, 1 aerobic digester, 1 biosolids solar drying facility. Tertiary treatment is required to meet Type 1 Reuse requirements and is provided by the 2 disc filters. The UV disinfection system was added after the chlorination system with a bypass of the chlorine contact basin. The chlorination system and contact basin are still operational as backups and are maintained but chlorination is not required as long as the UV system is operating. The facility produces Type I reuse water and maintains a UPDES permit in the event that a discharge from their facility is necessary. SUMMARY OF CHANGES FROM PREVIOUS PERMIT Tooele has recently completed the installation of two new disc filters to replace the aging sand filters. Tooele is also upgrading the headworks facility to include a new CMU building with new screening and grit removal equipment sized at 12 MGD peak hour. The wasteload analysis (WLA) was run with the design capacity of 3.4 MGD and that will be the maximum monthly average flow for this permit renewal. Total ammonia was added in accordance with Utah Administrative Code (UAC) R317-1-3.3, E, 1, b. DISCHARGE DESCRIPTION OF DISCHARGE Tooeleis a total reuse facility and maintains a UPDES permit in the event that a discharge from their facility is necessary. Tooelehas been reporting self-monitoring results on Discharge Monitoring Reports on a monthly basis. Tooeledischarged for 1 day in 2020 during the previous permit cycle. OutfallDescription of Discharge Point 001 Located at latitude4035'40" and longitude 11219'40". The discharge is by pumping out of the reuse reject pond to an unnamed irrigation ditch that collects storm water runoff from the road and fields in the area. The ditch runs north along the road until it dissipates into the ground. The ditch does not enter any other waterway or the Great Salt Lake.OutfallDescription of Reuse Water Discharge Point 001R Located at latitude 4035'40" and longitude 11219'40". The discharge is through a pipe to ponds on the Overlake Golf Course and then used to irrigate the golf course. Reuse effluent is also available for activities at the plant such as dust control. RECEIVING WATERS AND STREAM CLASSIFICATION If a discharge were to occur, it would be pumped into an unnamed irrigation ditch, which is a Class 2B, 3E, and 4according to UAC R317-2-13: Class 2B -- Protected for infrequent primary contact recreation. Also protected for secondary contact recreation where there is a low likelihood of ingestion of water or a low degree of bodily contact with the water. Examples include, but are not limited to, wading, hunting, and fishing. Class 3E -- Severely habitat-limited waters. Narrative standards will be applied to protect these waters for aquatic wildlife. Class 4 -- Protected for agricultural uses including irrigation of crops and stock watering. TOTAL MAXIUM DAILY LOAD (TMDL) REQUIREMENTS According to the Utah’s Final 2022 Integrated Report on Water Quality dated December 9, 2022, the receiving waters for the discharge, “All irrigation canals and ditches statewide, except as otherwise designated” (Assessment Unit UT16020304-007_00) was listed as “Insufficient Data”. The receiving waters do not have an approved TMDL for any parameters. BASIS FOR EFFLUENT LIMITATIONS Effluent limitations on TSS, BOD5, E. coli, pH and percent removal for BOD5 and TSS are based on current Utah Secondary Treatment Standards, UAC R317-1-3.2. Oil and grease is based on best professional judgment (BPJ). Effluent limitations for flow are based on the wasteload analysis (WLA). Attached is a WLA for this discharge into the unnamed irrigation ditch. It has been determined that this discharge will not cause a violation of water quality standards. An Antidegradation Level II review is not required since the Level I review shows that water quality impacts are minimal. The permittee is expected to be able to comply with these limitations. The TBPEL discharging treatment works are required to implement, at a minimum, monthly monitoring of the following beginning July 1, 2018: R317-1-3.3, E, 1, a.Influent for total phosphorus (as P) and total Kjeldahl nitrogen (as N) concentrations; R317-1-3.3, E, 1, b. Effluent for total phosphorus and orthophosphate (as P), ammonia, nitrate-nitrite and total Kjeldahl nitrogen (an N); In R317-1-3.3, E, 3 the rule states that all monitoring shall be based on 24-hour composite samples by use of an automatic sampler or a minimum of four grab samples collected a minimum of two hours apart. Effluent limitations for reuse outfall 001R are based on UAC R317-11.4, C. Reasonable Potential Analysis Since January 1, 2016, DWQ has conducted reasonable potential analysis (RP) on all new and renewal applications received after that date. RP for this permit renewal was conducted following DWQ’s September 10, 2015Reasonable Potential Analysis Guidance (RP Guidance).There are four outcomes defined in the RP Guidance: Outcome A, B, C, or D. These Outcomes provide a frame work for what routine monitoring or effluent limitations are required A quantitative RP analysis was not performed onmetals at this time due to insufficient data; therefore, the permittee will collect and report metals as stipulated in this permit to collect the required data to perform an RP analysis. The permit limitations are Parameter Table 1: Effluent Limitations(a) Maximum Monthly Avg Maximum Weekly Avg Yearly Average Daily Minimum Daily Maximum Total Flow 3.4 -- -- -- -- BOD5, mg/L BOD5 Min. % Removal 25 85 35 -- -- -- -- -- -- -- TSS, mg/L TSS Min. % Removal 25 85 35 -- -- -- -- -- -- -- E. coli, No./100mL 126 157 -- -- -- Oil & Grease, mg/L -- -- -- -- 10.0 pH, Standard Units -- -- -- 6.5 9 The permit limitations for Outfall001R (Reuse) are: ParameterTable 3: Outfall 001R Effluent Limitations(a) Max Monthly Average Max Weekly Median Max Daily Average Minimum Maximum Turbidity, NTU(b) -- -- 2 -- 5 BOD5, mg/L 10 -- -- -- -- E coli, No/100mL(c) -- ND(d) -- -- 9 pH, Standard Units -- -- -- 6.0 9.0 SELF-MONITORING AND REPORTING REQUIREMENTSThe following self-monitoring requirements are the same as in the previous permitwith the exception of the addition of total ammonia at outfall 001. The permit will require reports to be submitted monthly and annually, as applicable, on Discharge Monitoring Report (DMR) forms due 28 days after the end of the monitoring period. Effective January 1, 2017, monitoring results for outfall 001 and 001R must be submitted using NetDMR unless the permittee has successfully petitioned for an exception. Lab sheets for biomonitoring must be attached to the biomonitoring DMR. Lab sheets for metals and toxic organics must be attached to the DMRs. Table 2: Self-Monitoring and Reporting Requirements(a) Parameter Frequency Sample Type Units Total Flow(b)(c) Continuous Recorder MGD BOD5(d) Influent Effluent 2 X Weekly 2 X Weekly Composite Composite mg/L mg/L TSS(d) Influent Effluent 2 X Weekly 2 X Weekly Composite Composite mg/L mg/L Table 2: Self-Monitoring and Reporting Requirements(a) E. coli 2 X Weekly Grab No./100mL Oil & Grease(e) When Sheen Observed Grab mg/L pH 2 X Weekly Grab SU Total Ammonia (as N)(f) Effluent Monthly Composite mg/L Orthophosphate (as P)(f) Effluent Monthly Composite mg/L Total Phosphorus (as P)(f) Influent Effluent Monthly Monthly Composite Composite mg/L mg/L Total Kjeldahl Nitrogen, TKN (as N)(f) Influent Effluent Monthly Monthly Composite Composite mg/L mg/L Nitrate, NO3(f) Effluent Monthly Composite mg/L Nitrite, NO2(f) Effluent Monthly Composite mg/L Metals(g), Influent/Effluent Arsenic, Total Cadmium, Total Chromium, Total Copper, Total Cyanide, Total Lead, Total Mercury, Total Molybdenum, Total Nickel, Total Selenium, Total Silver, Total Zinc, Total Quarterly Quarterly Quarterly Quarterly Quarterly Quarterly Quarterly Quarterly Quarterly Quarterly Quarterly Quarterly Composite Composite Composite Composite Composite/Grab Composite Composite/Grab Composite Composite Composite Composite Composite mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Organic Toxic Pollutants(h) Influent Effluent Yearly Yearly Grab Grab mg/L mg/LNotes Tables 1 and 2See Definitions, Part VIII, for definition of terms.Flow measurements of influent/effluent volume shall be made in such a manner that the Permittee can affirmatively demonstrate that representative values are being obtained.If the rate of discharge is controlled, the rate and duration of discharge shall be reported.In addition to monitoring the final discharge, influent samples shall be taken and analyzed for this constituent at the same frequency as required for effluent discharge.Oil and grease shall be sampled when sheen is present or visible. If no sheen is present or visible, report NA.These reflect changes required with the adoption of UCA R317-1-3.3, Technology-based Phosphorus Effluent Limits rule.Metals shall be sampled from the same place as the reuse water monitoring is conducted. The results will be reported regardless of the occurrence of discharge from outfall 001.A list of the organics to be tested can be found in 40 CFR 122 appendix D table II. This shall be sampled from the same place as the reuse water monitoring is conducted. The results will be reported regardless of the occurrence of discharge from outfall 001. The following is a summary of the Type I reuse self-monitoring and reporting requirements. Table 4: Reuse Outfall 001R Self-Monitoring and Reporting Requirements(a) Parameter Frequency Sample Type Units Total Flow(d)(e) Continuous Recorder MGD Turbidity Continuous Recorder mg/L BOD5 Weekly Composite mg/L E. coli Daily Grab No./100mL pH Daily Grab SUNotes Tables 3 and 4See Definitions, Part VIII, for definition of terms.An alternative disposal option or diversion to storage must be automatically activated if turbidity exceeds the maximum instantaneous limit for more than 5 minutes, or chlorine residual drops below the instantaneous required value for more than 5 minutes, where chlorine disinfection is used.The weekly median E. coli concentration shall be non-detect.Flow measurements of influent/effluent volume shall be made in such a manner that the Permittee can affirmatively demonstrate that representative values are being obtained.If the rate of discharge is controlled, the rate and duration of discharge shall be reported. Management Practices for Land Application of Treated Effluent: (1)The application of treated effluent to frozen, ice-covered, or snow covered land is prohibited. (2)No person shall apply treated effluent where the slope of the site exceeds 6 percent. (3)The use should not result in a surface water runoff. (4)The use must not result in the creation of an unhealthy or nuisance condition, as determined by the local health department. (5)Any irrigation with treated effluent must be at least 300 feet from a potable well. (6)For Type I reuse, any irrigation must be at least 50 feet from any potable water well. (7)For Type II reuse, any irrigation must be at least 300 feet from any potable water well. (8)For Type II reuse, spray irrigation must be at least 100 feet from areas intended for public access. This distance may be reduced or increased by the Director. (9)Impoundments of treated effluent, if not sealed, must be at least 500 feet from any potable well. (10)Public access to effluent storage and irrigation or disposal sites shall be restricted by a stock-tight fence or other comparable means which shall be posted and controlled to exclude the public (Compliance Schedule for a Particular Parameter if necessary) BIOSOLIDS For clarification purposes, sewage sludge is considered solids, until treatment or testing shows that the solids are safe, and meet beneficial use standards. After the solids are tested or treated, the solids are then known as biosolids. Class A biosolids, may be used for high public contact sites, such as home lawns and gardens, parks, or playing fields, etc. Class B biosolids may be used for low public contact sites, such as farms, rangeland, or reclamation sites, etc. SUBSTANTIAL BIOSOLIDS TREATMENT CHANGES No substantial changes have been made in regard to biosolids treatment or disposal. DESCRIPTION OF TREATMENT AND DISPOSAL The Permittee submitted their 2021 annual biosolids report on March 31, 2022. The report states the Permittee produced 627 dry metric tons (DMT) of solids of which 346 DMT were landfilled. The solids at Tooele are stabilized within oxidation ditches for about 15 days, then sent to a thickener, then to a sludge holding tank, then pumped to a screw press for dewatering. The solids are further dewatered and dried with solar greenhouses to hopefully meet Class A standards. If the biosolids do not meet Class A standards it will be landfilled. Testing to date has shown the biosolids do meet Class B standards. The goal of the greenhouses is to produce Class A biosolids product through testing, to show that the biosolids are a safe product which may be sold or given away to the public. However, with the lower temperatures during the winter months, it may not always be possible to meet Class A requirements through testing, and Class B product may be produced for land application to farm fields, or other low public contact sites. Tooele plans to continue using the screw presses and the greenhouses for the life of this five year permit. The last inspection conducted at the land application site was January 12, 2022. The inspection showed that Tooelewas in compliance with all aspects of the biosolids management program. SELF-MONITORING REQUIREMENTS Under 40 CFR 503.16(a)(1), the self-monitoring requirements are based upon the amount of biosolids disposed per year and shall be monitored according to the chart below. 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 > 0 to < 320 > 0 to < 290 Once Per Year or Batch > 320 to < 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 In 2021, the Tooeledisposed of 627 DMT of biosolids, therefore they need to sample at least four times a year. Landfill MonitoringUnder 40 CFR 258, the landfill monitoring requirements include a paint filter test. If the biosolids do not pass a paint filter test, the biosolids cannot be disposed in the sanitary landfill (40 CFR 258.28(c)(1). Tooele disposed of 346 DMT of biosolids at the Wasatch Regional Landfill. BIOSOLIDS LIMITATIONS Heavy MetalsClass A Biosolids for Home Lawn and Garden UseThe intent of the heavy metals regulations of Table 3,40 CFR 503.13 is to ensure the heavy metals do not build up in the soil in home lawn and gardens to the point where the heavy metals become phytotoxic to plants. The permittee will be required to produce an information sheet (see Part III. C. of the permit) to made available to all people who are receiving and land applying Class A biosolids to their lawns and gardens. If the instructions of the information sheet are followed to any reasonable degree, the Class A biosolids will be able to be land applied year after year, to the same lawns and garden plots without any deleterious effects to the environment. The information sheet must be provided to the public, because the permittee is not required, nor able to track the quantity of Class A biosolids that are land applied to home lawns and gardens.Class A Requirements With Regards to Heavy Metals If the biosolids are to be applied to a lawn or home garden, the biosolids shall not exceed the maximum heavy metals in Table 3 below. If the biosolids do not meet these requirements, the biosolids cannot be sold or given away for applications to home lawns and gardens.Class B Requirements for Agriculture and Reclamation Sites The intent of the heavy metals regulations of Tables 1, 2 and 3, of 40 CFR 503.13 is to ensure that heavy metals do not build up in the soil at farms, forest land, and land reclamation sites to the point where the heavy metals become phytotoxic to plants. The permittee will be required to produce an information sheet (see Part III. C. of the permit) to be handed out to all people who are receiving and land applying Class B biosolids to farms, ranches, and land reclamation sites (if biosolids are only applied to land owned by the permittee, the information sheet requirements are waived). If the biosolids are land applied according to the regulations of 40 CFR 503.13, to any reasonable degree, the Class B biosolids will be able to be land applied year after year, to the same farms, ranches, and land reclamation sites without any deleterious effects to the environment. Class B Requirements With Regards to Heavy Metals If the biosolids are to be land applied to agricultural land, forest land, a public contact site or a reclamation site it must meet at all times: The maximum heavy metals listed in 40 CFR Part 503.13(b) Table 1 and the heavy metals loading rates in 40 CFR Part 503.13(b) Table 2; or The maximum heavy metals in 40 CFR Part 503.13(b) Table 1 and the monthly heavy metals concentrations in 40 CFR Part 503.13(b) Table 3. Tables 1, 2, and 3 of Heavy Metal Limitations Table 5: Pollutant Limits, (40 CFR Part 503.13(b)) Dry Mass Basis Heavy Metals Table 1 Table 2 Table 3 Table 4   Ceiling Conc. Limits(a), (mg/kg) CPLR(b), (mg/ha) Pollutant Conc. Limits(c) (mg/kg) APLR(d), (mg/ha-yr) Total Arsenic 75 41 41 2.0 Total Cadmium 85 39 39 1.9 Total Copper 4300 1500 1500 75 Total Lead 840 300 300 15 Total Mercury 57 17 17 0.85 Total Molybdenum 75 N/A N/A N/A Total Nickel 420 420 420 21 Total Selenium 100 100 100 5.0 Total Zinc 7500 2800 2800 140 Notes for Table 5If the concentration of any 1 (one) of these parameters exceeds the Table 1 limit, the biosolids cannot be land applied or beneficially used in any way.CPLR - Cumulative Pollutant Loading Rate - The maximum loading for any 1 (one) of the parameters listed that may be applied to land when biosolids are land applied or beneficially used on agricultural, forestry, or a reclamation site.If the concentration of any 1 (one) of these parameters exceeds the Table 3 limit, the biosolids cannot be land applied or beneficially used in on a lawn, home garden, or other high potential public contact site. If any 1 (one) of these parameters exceeds the Table 3 limit, the biosolids may be land applied or beneficially reused on an agricultural, forestry, reclamation site, or other high potential public contact site, as long as it meets the requirements of Table 1, Table 2, and Table 4.APLR - Annual Pollutant Loading Rate - The maximum annual loading for any 1 (one) of the parameters listed that may be applied to land when biosolids are land applied or beneficially reused on agricultural, forestry, or a reclamation site, when they do not meet Table 3, but do meet Table 1. Any violation of these limitations shall be reported in accordance with the requirements of Part III.F.1. of the permit. If the biosolids do not meet these requirements, they cannot be land applied. PathogensThe Pathogen Control class listed in the table below must be met; Table 6: Pathogen Control Class 503.32 (a)(1) - (5), (7), (8), Class A 503.32 (b)(1) - (5), Class B B Salmonella species –less than three (3) MPN(a)per four (4) grams total solids (DWB)(b) or Fecal Coliforms – less than 1,000 MPN per gram total solids (DWB). Fecal Coliforms – less than 2,000,000 MPN or CFU(c) per gram total solids (DWB). 503.32 (a)(6) Class A—Alternative 4 B Salmonella species –less than three (3) MPN per four (4) grams total solids (DWB) or less than 1,000 MPN Fecal Coliforms per gram total solids (DWB), And - Enteric viruses –less than one (1) plaque forming unit per four (4) grams total solids(DWB) And - Viable helminth ova –less than one (1) per four (4) grams total solids (DWB) Notes for Table 6MPN – Most Probable NumberDWB – Dry Weight BasisCFU – Colony Forming Units Class A Requirements for Home Lawn and Garden Use If biosolids are land applied to home lawns and gardens, the biosolids need to be treated by a specific process to further reduce pathogens (PFRP), and meet a microbiological limit of less than less than 3 most probable number (MPN) of Salmonella per 4 grams of total solids (or less than 1,000 most probable number (MPN/g) of fecal coliform per gram of total solids) to be considered Class A biosolids. Tooelehas chosen to achieve PFRP through a method of solar greenhouse.1. Pathogen Testing-Tooele is allowed to do additional testing of pathogens (PFRP) to meet Class A standards. This additional testing requires Tooele to monitor for viable helminth ova (tape worms and round worm eggs that could hatch), enteric viruses (viruses of the gut), and either fecal coliform or salmonella bacteria. This method is found under (40 CFR 503.32(6) Class A, Alternative 4(i)). The practice of sale or giveaway to the public is an acceptable use of biosolids of this quality as long as the biosolids continue to meet Class A standards with respect to pathogens. If the biosolids do not meet Class A pathogen standards the biosolids cannot be sold or given away to the public, and the permittee will need find another method of beneficial use or disposal. Pathogens Class B If biosolids are to be land applied for agriculture or land reclamation the solids need to be treated by a specific process to significantly reduce pathogens (PSRP). Tooelehas chosen to achieve PSRP through drying and solar greenhouse this time. 1. Under 40 CFR 503.32 (b)(2), Tooele may test the biosolids and must meet a microbiological limit of less than 2,000,000 MPN of fecal coliform per gram for the biosolids to be considered Class B biosolids with respect to pathogens. Vector Attraction Reduction (VAR) If the biosolids are land applied Tooelewill be required to meet VAR through the use of a method of listed under 40 CFR 503.33. Tooeleintends to meet the vector attraction reduction requirements through one of the methods listed below. Tooele is meeting vector attraction reduction throughdrying,40 CFR Part 503.33. The percent solids in 90% or more prior to sale or giveaway for Class A biosolids, (40 CFR 503.33 (b)(7)), or the percent of solids in 75% or more prior to sale or giveaway for Class B biosolids, (40 CFR 503.33 (b)(8)). If the biosolids do not meet a method of VAR, the biosolids cannot be land applied. If the permittee intends to use another one of the listed alternatives in 40 CFR 503.33, the Director and the EPA must be informed at least thirty (30) days prior to its use. This change may be made without additional public notice Landfill Monitoring Under 40 CFR 258, the landfill monitoring requirements include a paint filter test to determine if the biosolids exhibit free liquid. If the biosolids do not pass a paint filter test, the biosolids cannot be disposed in the sanitary landfill (40 CFR 258.28(c)(1). Record Keeping The record keeping requirements from 40 CFR 503.17 are included under Part III.G. of the permit. The amount of time the records must be maintained are dependent on the quality of the biosolids in regards to the metals concentrations. If the biosolids continue to meet the metals limits of Table 3 of 40 CFR 503.13, and are sold or given away the records must be retained for a minimum of five years. If the biosolids are disposed in a landfill the records must retained for a minimum of five years. Reporting Tooelemust report annually as required in 40 CFR 503.18. This report is to include the results of all monitoring performed in accordance with Part III.B of the permit, information on management practices, biosolids treatment, and certifications. This report is due no later than February 19 of each year. Each report is for the previous calendar year. MONITORING DATA METALS MONITORING DATA Tooelewas required to sample for metals at least fourtimes in 20XX. <Permittee>sampled the Class A compost YYtimes, and the Class B biosolids Ytimes. All biosolids land applied in 20XXmet Table 3 of 40 CFR 503.13, therefore the <Permittee>biosolids qualify as EQ with regards to metals. The monitoring data is below. <Permittee>Metals Monitoring Data 20XX <Permittee>Metals Monitoring Data, 20XX (Land Application) Parameter Table 3, mg/kg (Exceptional Quality) Average, mg/kg Maximum, mg/kg Arsenic 41.0 Cadmium 39.0 Copper 1,500.0 Lead 300.0 Mercury 17.0 Molybdenum 75.0 Nickel 400.0 Selenium 36.0 Zinc 2,800.0 PATHOGEN MONITORING DATA (Anaerobic Cake) The <Permittee>was not required to monitor the anaerobic biosolids (sludge cake) for pathogens. Therefore, there is not any monitoring data for the Class B biosolids. All biosolids land applied in 20XXmet the Class B pathogen standards through anaerobic digestion. PATHOGEN MONITORING DATA (Aerobic Compost) The TSSD was required to monitor the composted biosolids for pathogens at least six times in 2013 The TSSD had the choice to sample for fecal coliform or salmonella, and the TSSD chose salmonella. Each monitoring episode needs to consist of seven samples, for a total 42 samples. All compost sold or given away in 2013 met the Class A pathogen standards for compost. The monitoring data is below. <Permittee>Salmonella Monitoring Data 20XXCompost) Geometric Mean of 42 Samples, Most Probable Number Per Gram (2013) Maximum of 42 Samples, Most Probable Number Per Gram (2013) 1.1 1.76 STORM WATER Separate storm water permits may be required based on the types of activities occurring on site. Permit coverage under the Multi Sector General Permit (MSGP) for Storm Water Discharges from Industrial Activities is required based on the Standard Industrial Classification (SIC) code for the facility and the types of industrial activities occurring. If the facility is not already covered, it has 30 days from when this permit is issued to submit the appropriate Notice of Intent (NOI) for the MSGP or exclusion documentation. Previously storm water discharge requirements and coverage were combined in this individual permit. These have been separated to provide consistency among permittees, electronic reporting for storm water discharge monitoring reports, and increase flexibility to changing site conditions. Permit coverage under the Construction General Storm Water Permit (CGP) is required for any construction at the facility which disturb an acre or more, or is part of a common plan of development or sale that is an acre or greater. A Notice of Intent (NOI) is required to obtain a construction storm water permit prior to the period of construction. Information onstorm water permit requirements can be found at http://stormwater.utah.gov PRETREATMENT REQUIREMENTS The permittee has been required to develop a pretreatment program and is currently in the process of developing a pretreatment program. An industrial waste survey (IWS) is required of the permittee as stated in Part II of the permit. The IWS is to assess the needs of the permittee regarding pretreatment assistance. The IWS is required to be submitted within sixty (60) days after the issuance of the permit. If an Industrial User begins to discharge ot an existing Industrial User changes their discharge the permittee must resubmit an IWS no later than sixty days following the introduction or change as stated in Part II of this permit. Any wastewater discharges to the sanitary sewer are subject to Federal, State and local regulations. Pursuant to Section 307 of the Clean Water Act, the permittee shall comply with all applicable Federal General Pretreatment Regulations promulgated, found in 40 CFR 403 and the State Pretreatment Requirements found in UAC R317-8-8. It is required that the permittee submit for review any local limits that are developed to the Division of Water Quality for review. If local limits are developed it is required that the permittee perform an annual evaluation of the need to revise or develop technically based local limits for pollutants of concern, to implement the general and specific prohibitions 40 CFR, Part 403.5(a) and Part 403.5(b). This evaluation may indicate that present local limits are sufficiently protective, need to be revised or should be developed. BIOMONITORING REQUIREMENTS A nationwide effort to control toxic discharges where effluent toxicity is an existing or potential concern is regulated in accordance with the Utah Pollutant Discharge Elimination System Permit and Enforcement Guidance Document for Whole Effluent Toxicity Control (biomonitoring), dated February 2018. Authority to require effluent biomonitoring is provided in Permit Conditions, UAC R317-8-4.2, Permit Provisions, UAC R317-8-5.3 and Water Quality Standards, UAC R317-2-5 and R317 -2-7.2. The permittee is a minor municipal facility that will be discharging an infrequent amount of effluent, in which toxicity is neither an existing concern, nor likely to be present. Also, the receiving irrigation ditch is regularly dry; therefore there is not any available data to conclude that the irrigation ditch is impaired. Based on these considerations, and the absence of receiving stream water quality monitoring data, there is no reasonable potential for toxicity in the permittee’s discharge (per State of Utah Permitting and Enforcement Guidance Document for WET Control). As such, there will be no numerical WET limitations or WET monitoring requirements in this permit. However, the permit will contain a toxicity limitation re-opener provision that allows for modification of the permit should additional information indicate the presence of toxicity in the discharge. PERMIT DURATIONIt is recommended that this permit be effective for a duration of five (5) years.Drafted and ReviewedbyDaniel Griffin, Discharge Permit WriterDaniel Griffin, BiosolidsJennifer Robinson, PretreatmentLonnie Shull, BiomonitoringCarl Adams, Storm WaterMichael Allred, TMDL/Watershed Christopher Shope, PhD., Wasteload AnalysisUtah Division of Water Quality, (801) 536-4300PUBLIC NOTICEBegan: Month Day, YearEnded: Month Day, YearComments will be received at: 195 North 1950 West PO Box 144870 Salt Lake City, UT 84114-4870The Public Noticed of the draft permit was published on the DWQ webpage.During the public comment period provided under R317-8-6.5, any interested person may submit written comments on the draft permit and may request a public hearing, if no hearing has already been scheduled. A request for a public hearing shall be in writing and shall state the nature of the issues proposed to be raised in the hearing. All comments will be considered in making the final decision and shall be answered as provided in R317-8-6.12.ADDENDUM TO FSSOBDuring finalization of the Permit certain dates, spelling edits and minor language corrections were completed. Due to the nature of these changes they were not considered Major and the permit is not required to be re Public Noticed.Responsiveness Summary(Explain any comments received and response sent. Actual letters can be referenced, but not required to be included). This Page Intentionally Left Blank ATTACHMENT 1 Industrial Waste Survey This Page Intentionally Left BlankIndustrial Pretreatment Wastewater SurveyDo you periodically experience any of the following treatment works problems:foam, floaties or unusual colorsplugged collection lines caused by grease, sand, flour, etc.discharging excessive suspended solids, even in the wintersmells unusually badwaste treatment facility doesn’t seem to be treating the waste rightPerhaps the solution to a problem like one of these may lie in investigating the types and amounts of wastewater entering the sewer system from industrial users.An industrial user (IU) is defined as a non-domestic user discharging to the waste treatment facility which meets any of the following criteria: 1.has a lot of process wastewater (5% of the flow at the waste treatment facility or more than 25,000 gallons per work day.)Examples:Food processor, dairy, slaughterhouse, industrial laundry.2.is subject to Federal Categorical Pretreatment Standards;Examples:metal plating, cleaning or coating of metals, blueing of metals, aluminum extruding, circuit board manufacturing, tanning animal skins, pesticide formulating or packaging, and pharmaceutical manufacturing or packaging,3.is a concern to the POTW.Examples:septage hauler, restaurant and food service, car wash, hospital, photo lab, carpet cleaner, commercial laundry.All users of the water treatment facility are prohibited from making the following types of discharges:1.A discharge which creates a fire or explosion hazard in the collection system.2.A discharge which creates toxic gases, vapor or fumes in the collection system.3.A discharge of solids or thick liquids which creates flow obstructions in the collection system.4.An acidic discharge (low pH) which causes corrosive damage to the collection system.5.Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in amounts that will cause problems in the collection system or at the waste treatment facility.6.Waste haulers are prohibited from discharging without permission. (No midnight dumping!)When the solution to a sewer system problem may be found by investigating the types and amounts of wastewater entering the sewer system discharged from IUs, it’s appropriate to conduct an Industrial Waste Survey.An Industrial Waste Survey consists of:Step 1: Identify Industrial UsersMake a list of all the commercial and industrial sewer connections.Sources for the list:business license, building permits, water and wastewater billing, Chamber of Commerce, newspaper, telephone book, yellow pages.Split the list into two groups:domestic wastewater only--no further information neededeveryone else (IUs)Step 2: Preliminary InspectionGo visit each IU identified on the “everybody else” list. Fill out the Preliminary Inspection Form during the site visit.Step 3: Informing the StatePlease fax or send a copy of the Preliminary inspection form (both sides) to:Jennifer RobinsonDivision of Water Quality288 North 1460 WestP.O. Box 144870Salt Lake City, UT 84114-4870Phone: (801) 536-4383Fax:(801) 536-4301E-mail:jenrobinson@utah.govF:\WP\Pretreatment\Forms\IWS.doc PRELIMINARY INSPECTION FORM INSPECTION DATE / / Name of Business Person Contacted Address Phone Number Description of Business Principal product or service: Raw Materials used: Production process is: [ ] Batch [ ] Continuous[ ] Both Is production subject to seasonal variation? [ ] yes[ ] no If yes, briefly describe seasonal production cycle. This facility generates the following types of wastes (check all that apply): 1. [ ] Domestic wastes(Restrooms, employee showers, etc.) 2. [ ] Cooling water, non-contact3. [ ] Boiler/Tower blowdown 4. [ ] Cooling water, contact5. [ ] Process 6. [ ] Equipment/Facility washdown7. [ ] Air Pollution Control Unit 8. [ ] Storm water runoff to sewer9. [ ] Other describe Wastes are discharged to (check all that apply): [ ] Sanitary sewer[ ] Storm sewer [ ] Surface water[ ] Ground water [ ] Waste haulers[ ] Evaporation [ ] Other (describe) Name of waste hauler(s), if used Is a grease trap installed?YesNo Is it operational?YesNo Does the business discharge a lot of process wastewater?More than 5% of the flow to the waste treatment facility?YesNoMore than 25,000 gallons per work day?YesNo Does the business do any of the following:[ ] Adhesives[ ] Car Wash[ ] Aluminum Forming[ ] Carpet Cleaner[ ] Battery Manufacturing[ ] Dairy[ ] Copper Forming[ ] Food Processor[ ] Electric & Electronic Components[ ] Hospital[ ] Explosives Manufacturing[ ] Laundries[ ]Foundries[ ] Photo Lab[ ]Inorganic Chemicals Mfg. or Packaging[ ] Restaurant & Food Service[ ] Industrial Porcelain Ceramic Manufacturing[ ] Septage Hauler[ ] Iron & Steel[ ] Slaughter House [ ] Metal Finishing, Coating or Cleaning [ ] Mining [ ] Nonferrous Metals Manufacturing [ ]Organic Chemicals Manufacturing or Packaging [ ] Paint & Ink Manufacturing [ ] Pesticides Formulating or Packaging [ ] Petroleum Refining [ ] Pharmaceuticals Manufacturing or Packaging [ ] Plastics Manufacturing [ ] Rubber Manufacturing [ ] Soaps & Detergents Manufacturing [ ] Steam Electric Generation [ ] Tanning Animal Skins [ ] Textile Mills Are any process changes or expansions planned during the next three years? YesNo If yes, attach a separate sheet to this form describing the nature of planned changes or expansions. Inspector Waste Treatment Facility Please send a copy of the preliminary inspection form (both sides) to: Jennifer Robinson Division of Water Quality P. O. Box 144870 Salt Lake City, Utah 84114-4870 Phone:(801) 536-4383 Fax:(801) 536-4301E-Mail:jenrobinson@utah.gov Industrial User Jurisdiction SIC Codes Categorical Standard Number Total Average Process Flow (gpd) Total Average Facility Flow (gpd) Facility Description 1 2 3 4 5 6 7 8 9 10 11 This Page Intentionally Left Blank ATTACHMENT 2 Effluent Monitoring Data This Page Intentionally Left Blank ATTACHMENT 3 Wasteload Analysis This Page Intentionally Left Blank ATTACHMENT 4 Reasonable Potential Analysis This Page Intentionally Left Blank REASONABLE POTENTIAL ANALYSIS Water Quality has worked to improve our reasonable potential analysis (RP) for the inclusion of limits for parameters in the permit by using an EPA provided model. As a result of the model, more parameters may be included in the renewal permit. A Copy of the Reasonable Potential Analysis Guidance (RP Guide) is available at water Quality. There are four outcomes for the RP Analysis. They are; Outcome A:A new effluent limitation will be placed in the permit. Outcome B:No new effluent limitation. Routine monitoring requirements will be placed or increased from what they are in the permit, Outcome C:No new effluent limitation. Routine monitoring requirements maintained as they are in the permit, Outcome D:No limitation or routine monitoring requirements are in the permit. A quantitative RP analysis was not performed onmetals at this time due to insufficient data; therefore, the permittee will collect and report metals as stipulated in this permit to collect the required data to perform an RP analysis.