Guernsey, Town of

NPDES permit WY0021831 · Minor POTW · effective, expires 2030-06-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 21 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (155)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001pHINST MIN >= 6.5 SU all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 100 mg/L all year
001Solids, total suspendedMO AVG <= 100 mg/L all year
001Solids, total suspendedWKLY AVG <= 150 mg/L all year
001Solids, total suspendedWKLY AVG <= 150 mg/L all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.6 mg/L Nov
001Nitrogen, ammonia total [as N]MO AVG <= 1.6 mg/L Nov
001Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Sep
001Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Sep
001Nitrogen, ammonia total [as N]MO AVG <= 7.1 mg/L May
001Nitrogen, ammonia total [as N]MO AVG <= 7.1 mg/L May
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L Feb
001Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L Feb
001Nitrogen, ammonia total [as N]MO AVG <= 3.1 mg/L Mar
001Nitrogen, ammonia total [as N]MO AVG <= 3.1 mg/L Mar
001Nitrogen, ammonia total [as N]MO AVG <= 3.3 mg/L Oct
001Nitrogen, ammonia total [as N]MO AVG <= 3.3 mg/L Oct
001Nitrogen, ammonia total [as N]MO AVG <= 2.6 mg/L Jan
001Nitrogen, ammonia total [as N]MO AVG <= 2.6 mg/L Jan
001Nitrogen, ammonia total [as N]MO AVG <= 3.8 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 3.8 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 2.2 mg/L Dec
001Nitrogen, ammonia total [as N]MO AVG <= 2.2 mg/L Dec
001Nitrogen, ammonia total [as N]MO AVG <= 5.4 mg/L Jun
001Nitrogen, ammonia total [as N]MO AVG <= 5.4 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 5.9 mg/L Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 5.9 mg/L Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 14.8 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 14.8 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 20.2 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 20.2 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 7.7 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 7.7 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 7.1 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 7.1 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 15.7 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 15.7 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 8.9 mg/L Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 8.9 mg/L Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 8.9 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 8.9 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 7.3 mg/L Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 7.3 mg/L Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 20.2 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 20.2 mg/L Jun
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001DurationMO TOTAL report only all year
001DurationMO TOTAL report only all year
001Chlorine, total residualDAILY MX <= .01 mg/L Jan
001Chlorine, total residualDAILY MX <= .01 mg/L Jan
001Chlorine, total residualDAILY MX <= .01 mg/L Nov
001Chlorine, total residualDAILY MX <= .01 mg/L Nov
001Chlorine, total residualDAILY MX <= .01 mg/L Dec
001Chlorine, total residualDAILY MX <= .01 mg/L Dec
001Chlorine, total residualDAILY MX <= .03 mg/L Jun
001Chlorine, total residualDAILY MX <= .03 mg/L Jun
001Chlorine, total residualDAILY MX <= .02 mg/L (alert) Apr
001Chlorine, total residualDAILY MX <= .02 mg/L (alert) Apr
001Chlorine, total residualDAILY MX <= .02 mg/L Sep
001Chlorine, total residualDAILY MX <= .02 mg/L Sep
001Chlorine, total residualDAILY MX <= .02 mg/L Feb
001Chlorine, total residualDAILY MX <= .02 mg/L Feb
001Chlorine, total residualDAILY MX <= .03 mg/L May
001Chlorine, total residualDAILY MX <= .03 mg/L May
001Chlorine, total residualDAILY MX <= .02 mg/L Oct
001Chlorine, total residualDAILY MX <= .02 mg/L Oct
001Chlorine, total residualDAILY MX <= 1.75 mg/L Jul
001Chlorine, total residualDAILY MX <= 1.75 mg/L Jul
001Chlorine, total residualDAILY MX <= .01 mg/L Mar
001Chlorine, total residualDAILY MX <= .01 mg/L Mar
001Chlorine, total residualDAILY MX <= .6 mg/L Aug
001Chlorine, total residualDAILY MX <= .6 mg/L Aug
001E. coliMO GEOMN <= 809 #/100mL Dec
001E. coliMO GEOMN <= 809 #/100mL Dec
001E. coliMO GEOMN <= 278 #/100mL May
001E. coliMO GEOMN <= 278 #/100mL May
001E. coliMO GEOMN <= 5498 #/100mL Aug
001E. coliMO GEOMN <= 5498 #/100mL Aug
001E. coliMO GEOMN <= 793 #/100mL Mar
001E. coliMO GEOMN <= 793 #/100mL Mar
001E. coliMO GEOMN <= 825 #/100mL Jan
001E. coliMO GEOMN <= 825 #/100mL Jan
001E. coliMO GEOMN <= 278 #/100mL Jun
001E. coliMO GEOMN <= 278 #/100mL Jun
001E. coliMO GEOMN <= 16097 #/100mL Jul
001E. coliMO GEOMN <= 16097 #/100mL Jul
001E. coliMO GEOMN <= 858 #/100mL Oct
001E. coliMO GEOMN <= 858 #/100mL Oct
001E. coliMO GEOMN <= 858 #/100mL Feb
001E. coliMO GEOMN <= 858 #/100mL Feb
001E. coliMO GEOMN <= 210 #/100mL Sep
001E. coliMO GEOMN <= 210 #/100mL Sep
001E. coliMO GEOMN <= 186 #/100mL Apr
001E. coliMO GEOMN <= 186 #/100mL Apr
001E. coliMO GEOMN <= 793 #/100mL Nov
001E. coliMO GEOMN <= 793 #/100mL Nov
001E. coliDAILY MX <= 809 #/100mL Dec
001E. coliDAILY MX <= 809 #/100mL Dec
001E. coliDAILY MX <= 709 #/100mL May
001E. coliDAILY MX <= 709 #/100mL May
001E. coliDAILY MX <= 14818 #/100mL Aug
001E. coliDAILY MX <= 14818 #/100mL Aug
001E. coliDAILY MX <= 793 #/100mL Mar
001E. coliDAILY MX <= 793 #/100mL Mar
001E. coliDAILY MX <= 825 #/100mL Jan
001E. coliDAILY MX <= 825 #/100mL Jan
001E. coliDAILY MX <= 709 #/100mL Jun
001E. coliDAILY MX <= 709 #/100mL Jun
001E. coliDAILY MX <= 43468 #/100mL Jul
001E. coliDAILY MX <= 43468 #/100mL Jul
001E. coliDAILY MX <= 858 #/100mL Oct
001E. coliDAILY MX <= 858 #/100mL Oct
001E. coliDAILY MX <= 858 #/100mL Feb
001E. coliDAILY MX <= 858 #/100mL Feb
001E. coliDAILY MX <= 525 #/100mL Sep
001E. coliDAILY MX <= 525 #/100mL Sep
001E. coliDAILY MX <= 459 #/100mL Apr
001E. coliDAILY MX <= 459 #/100mL Apr
001E. coliDAILY MX <= 793 #/100mL Nov
001E. coliDAILY MX <= 793 #/100mL Nov
001Solids, total dissolvedDAILY MX report only all year
001FlowMO AVG report only all year
001FlowMO AVG report only all year
001FlowDAILY MX report only all year
001FlowDAILY MX report only all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Produced water, oil and greaseDAILY MX <= 10 mg/L all year
001Produced water, oil and greaseDAILY MX <= 10 mg/L all year
DMP1Temperature, water deg. centigradeDAILY AV report only all year
DMP1Temperature, water deg. centigradeDAILY AV report only all year
DMP1pHINST MIN report only all year
DMP1pHINST MIN report only all year
DMP1pHINST MAX report only all year
DMP1pHINST MAX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states