CRYSTAL SPRINGS POTW

NPDES permit MS0041874 · Minor POTW · effective, expires 2027-07-31 · 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

24values over a limit
0required values missing, on 0 form(s)
0of 5 forms filed late

Last period with anything received: 2026-06-30. Most often over: BOD, 5-day, 20 deg. C (4), Solids, total suspended (4), Nitrogen, ammonia total [as N] (4).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MS permits in EPA's filings — check your permit).

Limits in force (47)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 16 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 24 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 132 lb/d all year
001BOD, 5-day, 20 deg. CMX WK AV <= 198 lb/d all year
001BOD, 5-day, 20 deg. CMX MO AV report only all year
001BOD, 5-day, 20 deg. CMX WK AV report only all year
001BOD, 5-day, 20 deg. CMX MO AV report only all year
001BOD, 5-day, 20 deg. CMX WK AV report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMX MO AV <= 30 mg/L all year
001Solids, total suspendedMX WK AV <= 45 mg/L all year
001Solids, total suspendedMX MO AV <= 248 lb/d all year
001Solids, total suspendedMX WK AV <= 372 lb/d all year
001Solids, total suspendedMX MO AV report only all year
001Solids, total suspendedMX WK AV report only all year
001Solids, total suspendedMX MO AV report only all year
001Solids, total suspendedMX WK AV report only all year
001Nitrogen, ammonia total [as N]MX MO AV <= 2 mg/L all year
001Nitrogen, ammonia total [as N]MX MO AV <= 1.6 mg/L all year
001Nitrogen, ammonia total [as N]MX WK AV <= 3 mg/L all year
001Nitrogen, ammonia total [as N]MX WK AV <= 2.4 mg/L all year
001Nitrogen, ammonia total [as N]MX MO AV <= 16.5 lb/d all year
001Nitrogen, ammonia total [as N]MX MO AV <= 13.2 lb/d all year
001Nitrogen, ammonia total [as N]MX WK AV <= 25 lb/d all year
001Nitrogen, ammonia total [as N]MX WK AV <= 19.8 lb/d all year
001Nitrogen, ammonia total [as N]MX MO AV report only all year
001Nitrogen, ammonia total [as N]MX WK AV report only all year
001Nitrogen, ammonia total [as N]MX MO AV report only all year
001Nitrogen, ammonia total [as N]MX WK AV report only all year
001Lead, total recoverableMX MO AV <= .0014 mg/L all year
001Lead, total recoverableMX WK AV <= .0369 mg/L all year
001Copper, total recoverableMX MO AV <= .0061 mg/L all year
001Copper, total recoverableMX WK AV <= .0086 mg/L all year
001RainfallMX MO AV report only all year
001RainfallMX WK AV report only all year
001Flow, in conduit or thru treatment plantMX MO AV <= .99 MGD all year
001Flow, in conduit or thru treatment plantMX WK AV report only all year
001Chlorine, total residualMX MO AV <= .014 mg/L all year
001Chlorine, total residualMX WK AV <= .023 mg/L all year
001E. coliMX MO AV <= 126 #/100mL all year
001E. coliMX WK AV <= 410 #/100mL all year
001BOD, 5-day, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % all year
001%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 81.41 % all year
001%Effect Static Renewal 7Day Chronic Pimephales promelasMINIMUM >= 81.41 % 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