ARLINGTON CITY

NPDES permit WA0022560 · Major POTW · administratively continued, expires 2024-09-30 · 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 2024-09-30 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 4 form(s)
0of 33 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (112)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMAXIMUM report only (alert) all year
001Temperature, water deg. centigradeMAXIMUM report only (alert) all year
001Oxygen, dissolved [DO]AVERAGE report only (alert) all year
001Oxygen, dissolved [DO]AVERAGE report only (alert) all year
001Oxygen, dissolved [DO]MAXIMUM report only (alert) all year
001Oxygen, dissolved [DO]MAXIMUM report only (alert) all year
001BOD, 5-day, 20 deg. CAVERAGE <= 30 mg/L all year
001BOD, 5-day, 20 deg. CAVERAGE <= 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. CAVERAGE <= 500 lb/d all year
001BOD, 5-day, 20 deg. CAVERAGE <= 500 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 751 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 751 lb/d all year
001Solids, total suspendedAVERAGE <= 30 mg/L all year
001Solids, total suspendedAVERAGE <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedAVERAGE <= 500 lb/d all year
001Solids, total suspendedAVERAGE <= 500 lb/d all year
001Solids, total suspendedWKLY AVG <= 751 lb/d all year
001Solids, total suspendedWKLY AVG <= 751 lb/d all year
001Nitrogen, ammonia total [as N]AVERAGE report only (alert) all year
001Nitrogen, ammonia total [as N]AVERAGE report only (alert) all year
001Nitrogen, ammonia total [as N]MAXIMUM report only (alert) all year
001Nitrogen, ammonia total [as N]MAXIMUM report only (alert) all year
001Nitrogen, Kjeldahl, total [as N]AVERAGE report only (alert) all year
001Nitrogen, Kjeldahl, total [as N]AVERAGE report only (alert) all year
001Nitrogen, Kjeldahl, total [as N]MAXIMUM report only (alert) all year
001Nitrogen, Kjeldahl, total [as N]MAXIMUM report only (alert) all year
001Nitrite + Nitrate total [as N]AVERAGE report only (alert) all year
001Nitrite + Nitrate total [as N]AVERAGE report only (alert) all year
001Nitrite + Nitrate total [as N]MAXIMUM report only (alert) all year
001Nitrite + Nitrate total [as N]MAXIMUM report only (alert) all year
001Nitrogen, inorganic totalAVERAGE <= 10 mg/L all year
001Nitrogen, inorganic totalMAXIMUM report only all year
001Phosphorus, total [as P]AVERAGE <= 1 mg/L all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Phosphorus [reactive as P]AVERAGE report only (alert) all year
001Phosphorus [reactive as P]AVERAGE report only (alert) all year
001Phosphorus [reactive as P]MAXIMUM report only (alert) all year
001Phosphorus [reactive as P]MAXIMUM report only (alert) all year
001BOD, percent removal [total]MO AV MN >= 85 % all year
001BOD, percent removal [total]MO AV MN >= 85 % all year
001pH, maximumDAILY MX <= 9 SU all year
001pH, maximumDAILY MX <= 9 SU all year
001pH, minimumDAILY MN >= 6 SU all year
001pH, minimumDAILY MN >= 6 SU all year
001Coliform, fecal generalMO GEOMN <= 39 #/100mL all year
001Coliform, fecal generalMO GEOMN <= 39 #/100mL all year
001Coliform, fecal generalWK GEOMN <= 100 #/100mL all year
001Coliform, fecal generalWK GEOMN <= 100 #/100mL all year
001FlowAVERAGE report only (alert) Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001FlowAVERAGE report only (alert) Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001FlowAVERAGE report only (alert) Jul, Aug, Sep
001FlowAVERAGE report only (alert) Jul, Aug, Sep
001FlowMAXIMUM report only (alert) Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001FlowMAXIMUM report only (alert) Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001FlowMAXIMUM report only (alert) Jul, Aug, Sep
001FlowMAXIMUM report only (alert) Jul, Aug, Sep
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
002Temperature, water deg. centigradeAVERAGE report only (alert) all year
002Temperature, water deg. centigradeAVERAGE report only (alert) all year
002Temperature, water deg. centigradeMINIMUM report only (alert) all year
002Temperature, water deg. centigradeMINIMUM report only (alert) all year
002TurbidityAVERAGE <= .2 NTU all year
002TurbidityAVERAGE <= .2 NTU all year
002Oxygen, dissolved [DO]DAILY MN >= .2 mg/L all year
002Oxygen, dissolved [DO]DAILY MN >= .2 mg/L all year
002BOD, 5-day, 20 deg. CAVERAGE <= 30 mg/L all year
002BOD, 5-day, 20 deg. CAVERAGE <= 30 mg/L all year
002BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
002BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
002Solids, total suspendedAVERAGE <= 30 mg/L all year
002Solids, total suspendedAVERAGE <= 30 mg/L all year
002Solids, total suspendedWKLY AVG <= 45 mg/L all year
002Solids, total suspendedWKLY AVG <= 45 mg/L all year
002Ultraviolet light dosageAVERAGE report only (alert) all year
002Ultraviolet light dosageAVERAGE report only (alert) all year
002Ultraviolet light dosageMAXIMUM report only (alert) all year
002Ultraviolet light dosageMAXIMUM report only (alert) all year
002pH, maximumDAILY MX <= 9 SU all year
002pH, maximumDAILY MX <= 9 SU all year
002pH, minimumDAILY MN >= 6 SU all year
002pH, minimumDAILY MN >= 6 SU all year
002Coliform, total general7C <= 2 #/100mL all year
002Coliform, total general7C <= 2 #/100mL all year
002FlowAVERAGE report only (alert) all year
002FlowAVERAGE report only (alert) all year
002FlowMAXIMUM report only (alert) all year
002FlowMAXIMUM 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
IN1BOD, 5-day, 20 deg. CMAXIMUM report only (alert) all year
IN1BOD, 5-day, 20 deg. CMAXIMUM 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
IN1BOD, 5-day, 20 deg. CMAXIMUM report only (alert) all year
IN1BOD, 5-day, 20 deg. CMAXIMUM report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedMAXIMUM report only (alert) all year
IN1Solids, total suspendedMAXIMUM report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedMAXIMUM report only (alert) all year
IN1Solids, total suspendedMAXIMUM report only (alert) all year
IN1FlowAVERAGE report only (alert) all year
IN1FlowAVERAGE report only (alert) all year
IN1FlowMAXIMUM report only (alert) all year
IN1FlowMAXIMUM report only (alert) all year

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