Loading...
HomeMy WebLinkAboutDWQ-2025-002919,l Brosor,ros FAcrLrrY rxspncrroN GENERAL INFORMATION p4. March 13,2025 Time In_ Time Out Facilify pu*" Tremonton \ A|/TP E-mail Reason for Inspection: I Routine lComplaint Type of Facility Approved Pretreatment Program POTWFIow> I MGD ! Domestic Wastewater Treatment Works > 2000 GPD Ll other ! Reuse Effluent (other than at facility) Method of Solids Disposal I Land Application (beneficial use) I euk Ag Land o/o ffi Compost t@ %n other % Mailing Address 1 O2 Sorrfh Tremonton Sfreet Tremonton, Utah 84337 4. Are records available for all use or disposal practices? 5. Are the number and location of sludge disposal sites available? (i.e., location maps) 6. Are self-monitoring data available for all regulated pollutants? 7. Are Pathogen and Vector Attraction Reduction method descriptions and certification statements available? 8. Are accurate records of sludge volume or mass maintained, where appropriate? 9. Are self-monitoring activities conducted at required frequencies? (See Figure-1) contu.t/ritl" P?ul Fulgh?ffi, Publ prron" (45) 251-2ffi4 fl Surface Disposal Discharge Permit #uT0020303 n Landfill ! Transferred to Another Facility Other Biosolids permit + UTL020303 Dan Griffin/State PERMIT VERIFICATION EvnNnN/A l. Are 40 CFR Part 503 sludge use and disposal requirements contained in: ENPoes Permit? [NfOeS Sludge Only Permir? nBPa REGIoN 8 General Permit? EePe Region 8 Individual Permit? InCne Subtitle C permit? Ellbctive date(s) of applicable permit o6t01t2024 09t30t2028 2 Annual Sludge Production 831 DMT (mtlyr,T/yr) last calendar year | 2024 l 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 : frv nN n N/A t"nN nN/A 6vAN I N/A dvZN ! N/A AtlN ! N/A AtlN n N/A Page 1 of11 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 FIGURE - 1 FREQUENCY OF BIOSOLIDS SAMPLE COLLECTION AND ANALYSIS RECORDKEEPING AND REPORTING EVALUATION CONTINUED I V n N n N/A 11. Are sludge data reported to the appropriate regulatory authority? If so,how often? Annualy SLUDGE SAMPLING AND ANALYSIS EVALUATION fraN EN/A F"ZN E N/A Et ZN ! N/A Sample collection procedures : Ft aN n N/A C"lN !N/A /"lN EN/A FrON E N/A 15. Are results reported on a dry weight basis? If no, how? 16. Were percent total solids analyzed? 17. Are chain-of-custody procedures properly employed? 18. Are chain-of-custody records available on site? sludge records maintained for at least 5 years? by facility ! Maintained by Contractor E other ofeach pollutant for both Pathogen and Vector Attraction Reduction of how Class A/B requirements are met of how Vector Attraction Reduction requirements are met Description of site restrictions (if applicable) Site locations, area, date, time and amount of sludge applied (if applicable) 72. Are sludge sampling locations appropriate for obtaining a representative sample? 13. Is sampling equipment adequate? volumes obtained? techniques used? Types of Containers Used? Samples analyzed in the appropriate time frames? uate number of samples to obtain a representative sample? ing and Analysis Plan Available? GENERAL SLUDGE PROCESSES Desoibe the sludge process control at the facility t, ZN ! N/A 20. Does the facility have sludge back-up units/equipment? Describe Page 2 of11 ,F* AN n N/A 21. Does facility have capacity (>30 days)?5T- dt nN ! N/A 22. Are plans for sludge disposal? Describe t" ZN n N/A 23. Is the solids handling operation adequate to manage volume of sludge? Explain LAND APPLICATION OF BIOSOLIDS 1. Biosolids Beneficial Use practice(s)Ta Bulk biosolids Bulk material derived from biosolids Sold or given away in bag or other container Other 2. Biosolids or material derived from biosolids land applied to I Agricultural Land Reclamation Site Lawn or Home Garden Forest Public Contact Site (park, golf course, etc.) Other tr V n N n N/A 3. Are pollutant concentrations below ceiling concentration values shown in Figure 2 Below (Table I)? EX V E N n Nle 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: IClassA !ClassB !Unknown EvXNf]N/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 Page3ofll Pollutant Limits, (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, (mg/ha) Pollutant Concentration Limits, (ms/ke) Annual Pollutant Loading Rates, (me/ha-yr) Total Arsenic 75 4l(37lbslac)4t 2.0 Total Cadmium 85 39(35 lbs/ac)39 1.9 Total Copner 4,300 1,500(1,335 lbs/ac)1 500 7.5 Total Lead 840 300(268 lbs/ac)300 l5 Total Mercury 57 17(15 lbs/ac)17 0.85 Total Molybdenum 75 Total Nickel 420 420(375lbs/ac)420 21 Total Selenium 100 100(89 lbs/ac)100 5.0 Total Zinc 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 to agricultural 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 n e-t Time and Temperature A-2 Alkaline Treatment A-3 Prior Testing (EV & VHO) A-4 No PriorTesting (EV &VHO) A-5 PFRP 4'-6 Equivalent PFRP CLASS A RECORDKEEPING CHECKLIST (SKIP IF CLASS B) Alternative A-l Time and Temnerature I Nre ! Fecal Coliform (MPN)Analytical results are for densify ot ! Salmonella sp. Bacteria (#/4 g) OR Z.zN Drly" % nnntrT B-l Fecal Coliform < 2,000,000 MPN or CFU B-2 PSRP B-3 Equivalent PSRP Sludge percent Solids Sludge temperature _oc OF Time temperature maintained _ Days Hours Minutes Alternative A-2 Alkaline Treatment ElNra ! Fecal Coliform (MPN)Analytical results are for density of: I Salmonella sp. Bacteria (#/4 g) OR Sludge pH (logs of pH from beginning, middle and end of treatment) >12 S.U. Time pH maintained > 12 (minimum 72 hours) Hours Logs of sludge temps from beginning, middle, end and hourly - Minimum 12 hours > 52"C (125.6 "F) Percent solids in sludge after drying _ t 5O% Alternative A-3 Prior Testine E Nla Analytical results are for density of: ! Salmonella sp. Bacteria (#/4 g) OR ! Fecal Coliform (MPN) n Analytical Results (prior to pathogen reduction and, when appropriate, after treatment):X Density of Enteric Viruses (l plaque forming unit per 4 giams of total solids) ! Viable Helminth Ova (1 per 4 grams oftotal solids) ! Oetalled Sampling and Analysis Plan Available tr Values or range ofvalues for operating parameters to indicate consistent pathogen reduction treatment Alternative A-4 No Prior Testins El NIA Analytical results are for density of: ! Salmonella sp. Bacteria (#/4 g) OR ! Fecal Coliform (MPN) Analytical Results (prior to pathogen reduction and, when appropriate, after treatment):T Density of Enteric Viruses (1 plaque forming unit per 4 grams of total solids) Viable Helminth Ova (l per 4 grams of total solids) Detailed Sampling and Analysis Plan Available Alternative A-5 Process to Further Reduce Pathosens (PFRP)n Nla Heat Drying EN/A Analytical results are for density of ! Salmonella sp. Bacteria (#/4 g) OR ! Fecal Coliform (MPN) n Moisture content of dried sludge _ < l0% tr 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) Page 4 of11 Thermophilic Aerobic Digestion E Nle Analytical results are for density of, f] Salmonella sp. Bacteria (#/4 g) OR ! Fecal Coliform (MPN) n Dissolved oxygen concentration in digester Temperature logs 55 oC <:> 60 "C (l3l oF <:> 140 "F) Mean Cell Residence Time (MCRT) l0 days running average _ days (see equations below) For complete mixed, constant feed & withdrawal with decanting:^ VCvHn=-qcq V : reactor volume q: flow rate leaving Cv: concentration ofsolids 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:::]:) " E(6s)or ^ E(Vi*Ci*Ti)un=-X(Vi*Ci) 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 Composting ! Nl,q, Analytical results are for densify of: ! Salmonella sp. Bacteria (#/4 g) OR I Fecal Coliform (MPN) Composting method: I Windrow I Static Aerated Pile ! Within -vessel ! Othe, ! Temperature logs: > 55 "C (l3l 'F) for 3 days if within-vessel or static aerated pile method (continuous reading or one reading per shift, minimum 2 readings per day) I Temperature logs: > 55 "C (131 "F) for 15 days if windrow method (one reading per shift, minimum 2 readings per day) I Records of pile turnings - minimum of 5 if windrow method Gamma Ray lrradiation E NIA Analytical results are for density of: ! Salmonella sp. Bacteria (#/4 g) OR ! Fecal Coliform (MPN) ! Gamma ray isotope used (e.g., Cobalt 60 or Cesium 137) ! Ambient room temperature log (continuous reading or one reading per shift, minimum 2 readings per day) Alternative A-6 PFRP Equivalent E Uln Analytical results are for density of: ! Salmonella sp. Bacteria OR I 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 and times of samples collected Sampling locations documented types listed Sample fypes appropriate le volumes recorded ames of persons sampling recorded of sample containers listed le containers appropriate of preservation including cooling Sampling quality assurance/quality control (QA/QC) available Page 5 of11 Analytical Records and time of sample analysis Name of analyst cal 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:Cl.-- *{-'e.E tr-n L /Analytical quality assurance/quality control (QA/QC) available fr Analy tical results avai lable CLASS B RECORDKEEPING CHECKLIST (SKIP IF CLASS A) Alternative B-1 Fecal Coliform Count ! Analytical results for density of fecal coliform collected for each sample ! Number of samples collected over two-week period (7 minimum) fl Nte ! Geometric Mean Calculation < 2,000,000 MPN or CFU (Standard Methods 92218 or 9222D) Root of the product of n factor - G.M. : (Xr * X, * X, * Xo *...Xn) '/n Common Log Factor - G.M. : Antilog [(Log1sX1 + Logr6X2 + Log16X3 ... + LoglsXn)/n] X : Fecal Coliform Density (dry weight basis) n : number of samples Required Site Restrictions. n public Access ! Harvesting ! Grazing Alternative B-2 Process to Sienificantlv Reduce Pathoeens (PSRP) E Nle Aerobic Digestion nUle ! Dissolved oxygen concentration profile n total Solids obtained and the feed and withdrawal streams I Mean Cell Residence Time (MCRT) calculations of sludge in digester (see equations below) For complete mixed, constant feed & withdrawal with decanting: 0n =Ynrn 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) or en = t!uj:rt:I') E(6s) X(Vi*Ci) 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 fl pubtic Access ! Harvesting Page 6 of11 ! Grazing Y Description of drying bed design (sand drying beds, paved, unpaved beds Depth of sludge on drying beds _ (in, ft) ! Orying time in days _ > 3 months ! laity average ambient temperature logs (2 of 3 months, ambient daily Required Site Restrictions ! pubtic Access ll Harvesting Anaerobic Digestion nNa Total Solids obtained and the feed and withdrawal streams Mean Cell Residence Time (MCRT) calculations of sludge i Air Drying For complete mixed, constant feed & withdrawal with V : reactor volume q : flow rate leaving Cv Cq: concentration of solids in existing sewage sludge For batch withdrawal, daily step feeding and 6s: an increment of sludge solids that leaves the Vi : volume of daily batch feed (incremental) to Temperature logs: > 40 "C (104 Demonstration that for 4 Required Site Restrictions.! ruutic Access Lime Stabilization ! Raised pH > 12 after hours ofcontact !Na > 0 "c (32 "F) Grazing (see equations below) gn -YYqcq ofsolids in reactor 0n: MCRT (running average solids residence time) ^ X(6s*0)un=-E(6s) ^ X(Vi*Ci*Ti)un=->(vi*Ci) I Temperature logs - 25 days @ 35 "C (95"F)55 "C (l3l"F) and 60 days @ 20 "C (68"F) (continuous reading or once per 2 readings per day) Required Site Restrictions. ! puutic Access I Harvesting ! Grazing Composting Composting method: n E Nle Liquid Sludge ! Quantify of ! single grab, pH ! Temperature of pH correction temperature other than 2SqC = or 0 : time period this increment has been in the reactor Ci: average concentration ofsolids in daily feed stream E static Aerated Pile n wittrin -vessel E other for 5 days (continuous reading or one reading per shift, minimum 2 readings per day) hours during the 5 days the temperature exceeded 55 'C (131"F) ! Harvesting ! Grazing nNle (-0.03 pH Units* (25qC-TmeasuredaC)) 1.0"c Dewatered Sludge (Cake) 0 hr._S.U.@2hr._S.U trn Quantity of Sludge and Alkali 5 min. composite, pH at 0 hr. S.U.@2 hr._S.U and Alkali ocloF (temp correction) f, Temperature of sample oCfF (temp correction) pH new: pH measured - pH correction Page 7 of11 Alternative B-3 PSRP Equivalent ! Operating parameters or pathogen levels as necessary to demonstrate equivalency to PSRP I 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) E Public Access ! Harvesting Records Documenting Sampling and Analysis for Fecal Coliform and Sampling Records ! Dates and times of samples Sampling locations Sample types listed Sample types Sample vo recorded n Names sampling recordedtrn ! Grazing Solids Analytical 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 nnnnnnnsample containers listed containers appropriate of preservation including cooling Sampling QA/QC available Name of Contract Laboratory, if applicable: VECTOR ATTRACTION REDUCTION METHODS tr V E N n N/A 8. Is a Vector Attraction Reduction method practiced? One of the VAR methods 1-10 must be used when land applying bulk biosolids 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 Z t - zsN 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 Inj ection I tO - Soil Incorporation VECTOR ATTRACTION REDUCTION RECORDKEEPING CHECKLIST Ontion I - Volatile Solids Reduction (VSR)ENre n 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 > 380% reduction of volatile solids using the Van Kleeck Equation (see below) ZSR = Vsin-vsout VSin-(VSin*VSout) 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 Ontion 2 - Anaerobic Bench-Scale Volatile Solids Reduction E Nre E tS-tOO ml flasks flushed with N2 ! Collect 50 ml in each 100 ml flask I Temperature logs (at least two per day) showing temperature between 30 oC - 37 "C (86 "F - 98.6 "F)E t-og showing results of random test of 5 flasks for TS &TVS at0,20,& 40 days ! Test method (SM 2540G) for TS & TVS ! Calculation showing < 17 o/o reduction of volatile solids using the Van Kleeck Equation (see below) ySR = vsin-vsout VStn-(V Sin*v Sout) VS;n: Fractional VS in feed stream VSout : Fraction of VS from bottom stream Fractional VS : Fraction of VS vs. Total Solids Ontion 3 - Aerobic Bench-Scale VS Reduction ! Description of bench-scale digester ENre ! Description of bench-scale digester _ !trnunnn Collection of 12L of sludge (maintain by adding distilled water daily) @2o/oIf dilution was required, what was used Log showing D.O. at least 2 mg/l effluent)\ Calibration records for D. O. meter Temperature logs (at least two per day) showing temperature maintained at20'C (68 'F) Log showing results of TS & TVS (2 sets every week for 5 weeks) Test method (SM 2540G) for TS & TVS Calculation showing < 15 V, reduction of volatile solids using the Van Kleeck Equation (see below) VSR = VSin-VSout V Sin-(VSin+V Sout) VS;n: Fractional VS in feed stream VSout : Fraction of VS from bottom stream Fractional VS : Fraction of VS vs. Total Solids Option 4 -Snecific Oxvsen Uptake Rate (SOUR)E Nla Collection of representative sample ml, L, gal.) Times when samples were collected & tests performed (l hour holding) E O.O.readings for sludge samples for l5 minutes or less (0,1,2,3...15 min) n l.O.calibration records ! temp readings at beginning and end of procedures ! temp correction performed if not at 20'C (68 "F) E log showing results of TS for sludge sample (g/l) ! Test method (SM 2540G) for TS & TVS ! Calculations showing SOUR < 1.5 mg O2lfulgTS (2 sub samples) n errg. of 7 or more calculations ! Test Method SM 2710B (Apparatus, Procedure and Calculation), modified by White House Manual (pg. 95) Option 5 - Aerobic Process n Nre I Documentation showing aerobic process time 15 > 14 days I Temperature log (continuous or at least two per day) showing average temperature > 45 oC (l l3 "F) and minimum temperature > 40 "C (104 "F) for 14 consecutive days Page 9 of11 Ontion 6 - Alkaline Treatment A Log demonstrating pH > 12 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)n Test intervals at 0,2,24 hours Amount of sludge treated (gal., lbs) n e alkali added_(lbs., gal.) Liquid mixture - grab sample, pH testing in each batch E Cate minute composite, several pH tests per day Option 7 -Moisture Reduction without Unstabilized Primarv Solids E Nla fl Description of method used to air dry the sludge ! Results of percent solids (dry weight)test > 75%a Test Method SM 2540G for TS E Nle ! Description of method used to air dry the ! Results of percent solids (dry test > 90%n Test Method SM 2540G for TS Option 9 - Subsurface Iniection E Nre nu ! Documentation of compl and injection, no significant ZZ ! ttClass A - must be inj within 8 hours ofdischarge from pathogen reduction process Eil NIe ! Documentation of iance (copy offield notes - how incorporated, class A or B, time elapsed between pathogen reduction ! Surface be incorporated within 6 hours after placed on the landn lf class A -be incorporated within 8 hours ofdischarge from pathogen reduction process RECORDS DOCUMENTING SAMPLING AND ANALYSIS F'OR METALS Sampling Records Analvtical Records and times of samples collected Date and time of sample analysis Sampling locations documented Sample types listed Sample types appropriate Sample volumes recorded Names of persons sampling recorded Types of sample containers listed ame of analyst and calculation results properly documented or verifiable All analyses are reported on a dry weight basis Analytical QA/QC available [l Sample containers appropriate I trrtethods of preservation including coolingp Sampling QA/QC available (copy offield notes - how injected, class A or B, time elapsed between pathogen reduction on surface after I hour) methods used results available Name of Contract Laboratory, if applicable:ct-*-*tt/k F"nA- COMMENTS Page 10 of11 METALSWORKSHEET trvENENre EvtrNlNra EvnN!Nte !v[]NINre COMMENTS 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 A B C D E Pollutant Actual Sludge Concentration me/ke Table I Ceiling Concentration melke Table III Pollutant Concentration mg/ke Table II Cumulative Pollutant Loading Rate ks/ha Table IV Annual Pollutant Loading Rate ks.lhalyt Sample Preparation & Analytical Methods sw-846 Preservation and Holding Time Sample Type 500 ml As 18 75 4l 4t 2.0 3050/305 l+ 60101706117060 Cool 4'C 180 days Composite 32 Cd 0.5 85 39 39 1.9 3050/305 l+ 60101713117130 Cool 4'C 180 days Composite 2.7 Cu 203 4,300 I,500 I,500 75 3050/305 I + 6010/7210 Cool 4'C 180 days Composite 341 Pb 7 840 300 300 l5 3050/305 l+ 60101742U7420 Cool 4oC 180 days Composite 27 Hg I 57 t7 l7 0.85 747U7470 Cool 4"C 28 days Composite 3.9 Mo 11 75 3050/305 I + 60r01748u7480 Cool 4'C 1 80 days Composite 22 Ni 16 420 420 420 2t 3050/305 l+ 601017520 Cool 4'C 180 days Composite 36 Se 6.5 100 100 100 5.0 3050/305 1 + 60101774U7740 Cool 4'C 180 days Composite 26.3 Zn 413 7,500 2,800 2,800 t40 3050/305 l+ 601017950 Cool 4'C 180 days Composite 733 4t'r.AEATaon Page 11 of11