LANCASTER COUNTY WATER & SEWER DISTRICT

NPDES permit SC0047864 · Major POTW · administratively continued, expires 2025-07-31 · 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.

This permit expired on 2025-07-31 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
0required values missing, on 0 form(s)
0of 48 forms filed late

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

Reporting

Reports are due about 29 days after each monitoring period ends (the most common figure among SC permits in EPA's filings — check your permit).

Limits in force (105)

OutfallParameterStatisticLimitMonths
001Oxygen demand, ultimateMO AVG <= 3285 lb/d all year
001Oxygen demand, ultimateMO AVG <= 3285 lb/d all year
001Oxygen demand, ultimateMO AVG <= 3285 lb/d all year
001Oxygen demand, ultimateWKLY AVG report only all year
001Oxygen demand, ultimateWKLY AVG report only all year
001Oxygen demand, ultimateWKLY AVG report only all year
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 20 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 15 mg/L all year
001BOD, 5-day, 20 deg. CWKLY 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 <= 22.5 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 1251 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG <= 1001 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG <= 1877 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 1877 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 1502 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 2816 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 8.5 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 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, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 1001 lb/d all year
001Solids, total suspendedMO AVG <= 1877 lb/d all year
001Solids, total suspendedMO AVG <= 3753 lb/d all year
001Solids, total suspendedWKLY AVG <= 1502 lb/d all year
001Solids, total suspendedWKLY AVG <= 2816 lb/d all year
001Solids, total suspendedWKLY AVG <= 5630 lb/d all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]WKLY AVG report only all year
001Nitrogen, total [as N]WKLY AVG report only all year
001Nitrogen, total [as N]WKLY AVG report only all year
001Nitrogen, total [as N]MO AVG <= 207000 lb/d all year
001Nitrogen, total [as N]MO AVG <= 207000 lb/d all year
001Nitrogen, total [as N]MO AVG <= 207000 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 5 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 20 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 5 mg/L all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 7.5 mg/L all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 30 mg/L all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 7.5 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 313 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 834 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 626 lb/d all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 470 lb/d all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 1251 lb/d all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 939 lb/d all year
001Phosphorus, total [as P]MO AVG <= 2 mg/L all year
001Phosphorus, total [as P]MO AVG <= 2 mg/L all year
001Phosphorus, total [as P]MO AVG <= 2 mg/L all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Phosphorus, total [as P]MO AVG <= 610 lb/d all year
001Phosphorus, total [as P]MO AVG <= 610 lb/d all year
001Phosphorus, total [as P]MO AVG <= 610 lb/d all year
001Phosphorus, total [as P]MO AVG <= 6095 lb/d all year
001Phosphorus, total [as P]MO AVG <= 6095 lb/d all year
001Phosphorus, total [as P]MO AVG <= 6095 lb/d 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 plantWKLY AVG report only all year
001Flow, in conduit or thru treatment plantWKLY AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantWKLY AVG report only all year
001Chlorine, total residualMO AVG <= .5 mg/L all year
001Chlorine, total residualMO AVG <= .5 mg/L all year
001Chlorine, total residualMO AVG <= .44 mg/L all year
001Chlorine, total residualDAILY MX <= 1 mg/L all year
001Chlorine, total residualDAILY MX <= 1 mg/L all year
001Chlorine, total residualDAILY MX <= .75 mg/L all year
001Chlorine, total residualMO AVG <= 21 lb/d all year
001Chlorine, total residualMO AVG <= 31 lb/d all year
001Chlorine, total residualMO AVG <= 55 lb/d all year
001Chlorine, total residualDAILY MX <= 42 lb/d all year
001Chlorine, total residualDAILY MX <= 63 lb/d all year
001Chlorine, total residualDAILY MX <= 94 lb/d all year
001E. coli30DAVGEO = 126 MPN/100mL all year
001E. coliDAILY MX = 349 MPN/100mL all year
001E. coli30DAVGEO = 126 MPN/100mL all year
001E. coliDAILY MX = 800 MPN/100mL all year
001BOD, 5-day, percent removalMO AV MN >= 85 % 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
001Solids, suspended percent removalMO AV MN >= 85 % all year
001LC50 Static 48Hr Acute Ceriodaphnia dubiaDAILY MN report only all year
001%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AVG <= 25 % all year
001%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MX <= 40 % all year
001Pass/Fail Static 48Hr Acute Ceriodaphnia dubiaDAILY MX <= 0 pass=0;fail=1 all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MN 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