City of Prosser

NPDES permit WA0020800 · Major POTW · administratively continued, expires 2017-04-30 · 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.

This permit expired on 2017-04-30 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
8required values missing, on 1 form(s)
1of 29 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 16 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (80)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeAVERAGE report only (alert) all year
001Temperature, water deg. centigradeAVERAGE report only (alert) all year
001Temperature, water deg. centigradeMAXIMUM report only (alert) all year
001Temperature, water deg. centigradeMAXIMUM report only (alert) all year
001Oxygen, dissolved [DO]MINIMUM >= 4 mg/L all year
001Oxygen, dissolved [DO]MINIMUM >= 4 mg/L all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Solids, total suspendedWKLY AVG <= 23 mg/L all year
001Solids, total suspendedWKLY AVG <= 23 mg/L all year
001Solids, total suspendedMO AVG <= 225 lb/d all year
001Solids, total suspendedMO AVG <= 225 lb/d all year
001Solids, total suspendedWKLY AVG <= 345 lb/d all year
001Solids, total suspendedWKLY AVG <= 345 lb/d all year
001Nitrogen, ammonia total [as N]MAXIMUM <= 8.8 mg/L all year
001Nitrogen, ammonia total [as N]MAXIMUM <= 8.8 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 4.4 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 4.4 mg/L all year
001Nitrogen, ammonia total [as N]MAXIMUM <= 132 lb/d all year
001Nitrogen, ammonia total [as N]MAXIMUM <= 132 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 66 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 66 lb/d all year
001Hardness, total [as CaCO3]Single Rdg report only (alert) all year
001Hardness, total [as CaCO3]Single Rdg report only (alert) all year
001Chlorine, total residualMAXIMUM <= .05 mg/L all year
001Chlorine, total residualMAXIMUM <= .05 mg/L all year
001Chlorine, total residualMAXIMUM <= .75 lb/d all year
001Chlorine, total residualMAXIMUM <= .75 lb/d all year
001Coliform, fecal generalMO GEOMN <= 100 #/100mL all year
001Coliform, fecal generalMO GEOMN <= 100 #/100mL all year
001Coliform, fecal generalWK GEOMN <= 200 #/100mL all year
001Coliform, fecal generalWK GEOMN <= 200 #/100mL all year
001FlowAVERAGE report only (alert) all year
001FlowAVERAGE report only (alert) all year
001FlowMAXIMUM report only (alert) all year
001FlowMAXIMUM report only (alert) all year
001FlowTOTAL report only (alert) all year
001FlowTOTAL report only (alert) all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 150 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 150 lb/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 225 lb/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 225 lb/d all year
001Solids, suspended percent removalMO AV MN >= 90 % all year
001Solids, suspended percent removalMO AV MN >= 90 % all year
001Carbonaceous oxygen demand, % removalMO AV MN >= 85 % all year
001Carbonaceous oxygen demand, % removalMO AV MN >= 85 % all year
002Nitrogen, Kjeldahl, total [as N]Single Rdg report only (alert) all year
002Nitrogen, Kjeldahl, total [as N]Single Rdg report only (alert) all year
002Nitrite + Nitrate total [as N]Single Rdg report only (alert) all year
002Nitrite + Nitrate total [as N]Single Rdg report only (alert) all year
002Phosphorus, total [as P]Single Rdg report only (alert) all year
002Phosphorus, total [as P]Single Rdg report only (alert) all year
002Cyanide, total [as CN]Single Rdg report only (alert) all year
002Cyanide, total [as CN]Single Rdg report only (alert) all year
002Total phenolsSingle Rdg report only all year
002Phenolics, totalSingle Rdg report only (alert) all year
002Phenolics, totalSingle Rdg report only (alert) all year
002Oil & grease, non-polar materialSingle Rdg report only (alert) all year
002Oil & grease, non-polar materialSingle Rdg report only (alert) all year
002Solids, total dissolvedSingle Rdg report only (alert) all year
002Solids, total dissolvedSingle Rdg report only (alert) all year
IN1BOD, 5-day, 20 deg. CAVERAGE report only (alert) all year
IN1BOD, 5-day, 20 deg. CAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1FlowAVERAGE report only (alert) all year
IN1FlowAVERAGE report only (alert) all year
IN1FlowTOTAL report only (alert) all year
IN1FlowTOTAL report only (alert) 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