ROSWELL, NEW MEXICO

NPDES permit NM0020311 · Major POTW · effective, expires 2030-10-31 · 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)
6of 90 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 (138)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 4.4 mg/L all year
001Oxygen, dissolved [DO]MO AV MN >= 4.4 mg/L all year
001BOD, 5-day, 20 deg. C30DA AVG <= 16 mg/L all year
001BOD, 5-day, 20 deg. C7 DA AVG <= 20 mg/L all year
001BOD, 5-day, 20 deg. C30DA AVG <= 934 lb/d all year
001BOD, 5-day, 20 deg. C7 DA AVG <= 1168 lb/d all year
001pHMINIMUM >= 6.6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspended7 DA AVG <= 45 mg/L all year
001Solids, total suspended30DA AVG <= 1751 lb/d all year
001Solids, total suspended7 DA AVG <= 2627 lb/d all year
001Nitrogen, total [as N]30DA AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Phosphorus, total [as P]30DA AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Uranium, total [in pci/L]DAILY MX report only all year
001Flow, in conduit or thru treatment plant30DA AVG report only all year
001Flow, in conduit or thru treatment plant7 DA AVG report only all year
001Chlorine, total residualINST MAX <= 11 ug/L all year
001E. coli30DAVGEO <= 126 CFU/100mL all year
001E. coliDAILY MX <= 410 CFU/100mL all year
001Alpha, gross adjustedDAILY MX report only all year
001PER-AND POLYFLUOROALKYL SUBSTANCESDAILY MX report only all year
001PER-AND POLYFLUOROALKYL SUBSTANCESDAILY MX report only all year
001PER-AND POLYFLUOROALKYL SUBSTANCESDAILY MX report only all year
001Alpha gross radioactivityDAILY MX report only all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001PFAS SumDAILY MX report only all year
002Oxygen, dissolved [DO]DAILY MN >= 4.4 mg/L all year
002Oxygen, dissolved [DO]MO AV MN >= 4.4 mg/L all year
002BOD, 5-day, 20 deg. C30DA AVG <= 16 mg/L all year
002BOD, 5-day, 20 deg. C7 DA AVG <= 20 mg/L all year
002BOD, 5-day, 20 deg. C30DA AVG <= 934 lb/d all year
002BOD, 5-day, 20 deg. C7 DA AVG <= 1168 lb/d all year
002pHMINIMUM >= 6.6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspended30DA AVG <= 30 mg/L all year
002Solids, total suspended7 DA AVG <= 45 mg/L all year
002Solids, total suspended30DA AVG <= 1751 lb/d all year
002Solids, total suspended7 DA AVG <= 2627 lb/d all year
002Nitrogen, total [as N]30DA AVG report only all year
002Nitrogen, total [as N]DAILY MX report only all year
002Phosphorus, total [as P]30DA AVG report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Uranium, total [in pci/L]DAILY MX report only all year
002Flow, in conduit or thru treatment plant30DA AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualINST MAX <= 11 ug/L all year
002E. coli30DAVGEO <= 548 CFU/100mL all year
002E. coliDAILY MX <= 2507 CFU/100mL all year
002Alpha, gross adjustedDAILY MX report only all year
002PER-AND POLYFLUOROALKYL SUBSTANCESDAILY MX report only all year
002PER-AND POLYFLUOROALKYL SUBSTANCESDAILY MX report only all year
002PER-AND POLYFLUOROALKYL SUBSTANCESDAILY MX report only all year
002Alpha gross radioactivityDAILY MX report only all year
002BOD, 5-day, percent removalMO AV MN >= 85 % all year
002Solids, suspended percent removalMO AV MN >= 85 % all year
002PFAS SumDAILY MX report only all year
101Oxygen, dissolved [DO]DAILY MN >= 4.4 mg/L all year
101Oxygen, dissolved [DO]MO AV MN >= 4.4 mg/L all year
101BOD, 5-day, 20 deg. C30DA AVG <= 16 mg/L all year
101BOD, 5-day, 20 deg. C7 DA AVG <= 20 mg/L all year
101BOD, 5-day, 20 deg. C30DA AVG <= 934 lb/d all year
101BOD, 5-day, 20 deg. C7 DA AVG <= 1168 lb/d all year
101pHMINIMUM >= 6.6 SU all year
101pHMAXIMUM <= 9 SU all year
101Solids, total suspended30DA AVG <= 30 mg/L all year
101Solids, total suspended7 DA AVG <= 45 mg/L all year
101Solids, total suspended30DA AVG <= 1751 lb/d all year
101Solids, total suspended7 DA AVG <= 2627 lb/d all year
101Nitrogen, total [as N]30DA AVG report only all year
101Nitrogen, total [as N]DAILY MX report only all year
101Phosphorus, total [as P]30DA AVG report only all year
101Phosphorus, total [as P]DAILY MX report only all year
101Uranium, total [in pci/L]DAILY MX report only all year
101Flow, in conduit or thru treatment plant30DA AVG report only all year
101Flow, in conduit or thru treatment plant7 DA AVG report only all year
101Chlorine, total residualINST MAX <= 11 ug/L all year
101E. coli30DAVGEO <= 126 CFU/100mL all year
101E. coliDAILY MX <= 410 CFU/100mL all year
101Alpha, gross adjustedDAILY MX report only all year
101PER-AND POLYFLUOROALKYL SUBSTANCESDAILY MX report only all year
101PER-AND POLYFLUOROALKYL SUBSTANCESDAILY MX report only all year
101PER-AND POLYFLUOROALKYL SUBSTANCESDAILY MX report only all year
101Alpha gross radioactivityDAILY MX report only all year
101BOD, 5-day, percent removalMO AV MN >= 85 % all year
101Solids, suspended percent removalMO AV MN >= 85 % all year
101PFAS SumDAILY MX report only all year
TX1Whole Effluent Toxicity [WET] - C. dubiaMN VALUE >= 70 % all year
TX1Whole Effluent Toxicity [WET] - P. promelasMN VALUE >= 70 % all year
TX1Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1Pass/Fail Static Renewal 7Day Chronic Pimephales promelasVALUE report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX1Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1Coef Of Var Static Renewal 7Day Chronic Pimephales promelasVALUE report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX2Whole Effluent Toxicity [WET] - C. dubiaMN VALUE >= 98 % all year
TX2Whole Effluent Toxicity [WET] - P. promelasMN VALUE >= 98 % all year
TX2Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX2Pass/Fail Static Renewal 7Day Chronic Pimephales promelasVALUE report only all year
TX2Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX2Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX2NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX2NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX2NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX2NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX2Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX2Coef Of Var Static Renewal 7Day Chronic Pimephales promelasVALUE report only all year
TX2LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX2LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TX2LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TX2LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TXCWhole Effluent Toxicity [WET] - C. dubiaMN VALUE >= 70 % all year
TXCWhole Effluent Toxicity [WET] - P. promelasMN VALUE >= 70 % all year
TXCPass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TXCPass/Fail Static Renewal 7Day Chronic Pimephales promelasVALUE report only all year
TXCLow Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TXCLow Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TXCNOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TXCNOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TXCNOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TXCNOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TXCCoef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubiaVALUE report only all year
TXCCoef Of Var Static Renewal 7Day Chronic Pimephales promelasVALUE report only all year
TXCLOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TXCLOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelasVALUE report only all year
TXCLOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubiaVALUE report only all year
TXCLOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelasVALUE 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