City of Rio Dell

NPDES permit CA0022748 · Minor POTW · expired, expires 2022-10-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2022-10-31 and is expired: 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

23values over a limit
2required values missing, on 1 form(s)
34of 49 forms filed late

Last period with anything received: 2026-06-30. Most often over: Chlorine, total residual (12), Dichlorobromomethane (6), Coliform, total general (4).

Reporting

Reports are due about 93 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (144)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeINST MAX report only all year
001Temperature, water deg. centigradeINST MAX 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
001pHMINIMUM >= 6.5 SU all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, settleableMO AVG <= .1 mL/L all year
001Solids, settleableMO AVG <= .1 mL/L all year
001Solids, settleableDAILY MX <= .2 mL/L all year
001Solids, settleableDAILY MX <= .2 mL/L all year
001Nitrogen, total [as N]MO AVG <= 10 mg/L all year
001Nitrogen, total [as N]MO AVG <= 10 mg/L all year
001Nitrogen, organic total [as N]DAILY MX report only all year
001Nitrogen, organic total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia, tot unionized [as N]DAILY MX report only all year
001Nitrogen, ammonia, tot unionized [as N]DAILY MX report only all year
001Nitrogen, nitrite total [as N]DAILY MX report only all year
001Nitrogen, nitrite total [as N]DAILY MX report only all year
001Nitrogen, nitrate total [as N]DAILY MX report only all year
001Nitrogen, nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Aluminum, total recoverableDAILY MX report only all year
001Aluminum, total recoverableDAILY MX report only all year
001DichlorobromomethaneMO AVG <= .56 ug/L all year
001DichlorobromomethaneMO AVG <= .56 ug/L all year
001DichlorobromomethaneMO AVG <= 13 ug/L all year
001DichlorobromomethaneMO AVG <= 13 ug/L all year
001DichlorobromomethaneDAILY MX <= 1.1 ug/L all year
001DichlorobromomethaneDAILY MX <= 1.1 ug/L all year
001BromoformDAILY MX report only all year
001BromoformDAILY MX report only all year
001ChloroformDAILY MX report only all year
001ChloroformDAILY MX report only all year
001ChlorodibromomethaneMO AVG <= .4 ug/L all year
001ChlorodibromomethaneMO AVG <= .4 ug/L all year
001ChlorodibromomethaneMO AVG <= 1.6 ug/L all year
001ChlorodibromomethaneMO AVG <= 1.6 ug/L all year
001ChlorodibromomethaneDAILY MX <= .8 ug/L all year
001ChlorodibromomethaneDAILY MX <= .8 ug/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMX DA AV report only all year
001Flow, in conduit or thru treatment plantMX DA AV report only all year
001Chlorine, total residualMO AVG <= .01 mg/L all year
001Chlorine, total residualMO AVG <= .01 mg/L all year
001Chlorine, total residualMO AVG <= .01 mg/L all year
001Chlorine, total residualMO AVG <= .01 mg/L all year
001Chlorine, total residualDAILY MX <= .02 mg/L all year
001Chlorine, total residualDAILY MX <= .02 mg/L all year
001Chlorine, total residualDAILY MX <= .02 mg/L all year
001Chlorine, total residualDAILY MX <= .02 mg/L all year
001Haloacetic acids [HAA5]MO AVG <= 60 ug/L all year
001Haloacetic acids [HAA5]MO AVG <= 60 ug/L all year
001Haloacetic acids [HAA5]MO AVG <= 150 ug/L all year
001Haloacetic acids [HAA5]MO AVG <= 150 ug/L all year
001Dichloroacetic acid [DCAA]DAILY MX report only all year
001Dichloroacetic acid [DCAA]DAILY MX report only all year
001Monobromoacetic acid [MBAA]DAILY MX report only all year
001Monobromoacetic acid [MBAA]DAILY MX report only all year
001Coliform, total generalMO MED <= 23 MPN/100mL all year
001Coliform, total generalMO MED <= 23 MPN/100mL all year
001Coliform, total generalMW <= 240 MPN/100mL all year
001Coliform, total generalMW <= 240 MPN/100mL all year
001Monochloroacetic acid [MCAA]DAILY MX report only all year
001Monochloroacetic acid [MCAA]DAILY 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
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Trihalomethane, tot.MO AVG <= 80 ug/L all year
001Trihalomethane, tot.MO AVG <= 80 ug/L all year
001Trihalomethane, tot.MO AVG <= 110 ug/L all year
001Trihalomethane, tot.MO AVG <= 110 ug/L all year
001Dibromoacetic acid [DBAA]DAILY MX report only all year
001Dibromoacetic acid [DBAA]DAILY MX report only all year
001Trichloroacetic acid [TCAA]DAILY MX report only all year
001Trichloroacetic acid [TCAA]DAILY MX report only all year
003BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
003BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
003BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
003BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
003pHMINIMUM >= 6 SU all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Solids, total suspendedWKLY AVG <= 45 mg/L all year
003Solids, total suspendedWKLY AVG <= 45 mg/L all year
003Nitrogen, total [as N]MO AVG <= 10 mg/L Jun, Sep
003Nitrogen, total [as N]MO AVG <= 10 mg/L Jun, Sep
003Nitrogen, nitrate total [as N]DAILY MX report only Jun, Sep
003Nitrogen, nitrate total [as N]DAILY MX report only Jun, Sep
003ChloroformDAILY MX report only Jun, Sep
003ChloroformDAILY MX report only Jun, Sep
003Flow, in conduit or thru treatment plantANNL AVG <= .392 MGD all year
003Flow, in conduit or thru treatment plantANNL AVG <= .392 MGD all year
003Flow, in conduit or thru treatment plantDAILY AV <= 1.5 MGD all year
003Flow, in conduit or thru treatment plantDAILY AV <= 1.5 MGD all year
003Haloacetic acids [HAA5]DAILY MX report only all year
003Haloacetic acids [HAA5]DAILY MX report only all year
003Dichloroacetic acid [DCAA]DAILY MX report only all year
003Dichloroacetic acid [DCAA]DAILY MX report only all year
003Monobromoacetic acid [MBAA]DAILY MX report only all year
003Monobromoacetic acid [MBAA]DAILY MX report only all year
003Solids, total dissolvedDAILY MX report only Jun, Sep
003Solids, total dissolvedDAILY MX report only Jun, Sep
003Coliform, total general3G <= 23 MPN/100mL all year
003Coliform, total general3G <= 23 MPN/100mL all year
003Coliform, total generalMW <= 240 MPN/100mL all year
003Coliform, total generalMW <= 240 MPN/100mL all year
003Monochloroacetic acid [MCAA]DAILY MX report only all year
003Monochloroacetic acid [MCAA]DAILY MX report only all year
003Dibromoacetic acid [DBAA]DAILY MX report only all year
003Dibromoacetic acid [DBAA]DAILY MX report only all year
003Trichloroacetic acid [TCAA]DAILY MX report only all year
003Trichloroacetic acid [TCAA]DAILY MX report only all year
INFBOD, 5-day, 20 deg. CDAILY MX report only all year
INFBOD, 5-day, 20 deg. CDAILY MX report only all year
INFSolids, total suspendedDAILY MX report only all year
INFSolids, total suspendedDAILY MX report only all year
INFFlow, in conduit or thru treatment plantMO AVG report only all year
INFFlow, in conduit or thru treatment plantMO AVG report only all year
INFFlow, in conduit or thru treatment plantMX DA AV report only all year
INFFlow, in conduit or thru treatment plantMX DA AV report only all year
INTChlorine, total residualMO AVG report only all year
INTChlorine, total residualMO AVG report only all year
INTChlorine, total residualMO AVG report only all year
INTChlorine, total residualMO AVG report only all year
INTChlorine, total residualDAILY MX report only all year
INTChlorine, total residualDAILY MX report only all year
INTChlorine, total residualDAILY MX report only all year
INTChlorine, total residualDAILY MX 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