PARIS UTILITY DISTRICT

NPDES permit ME0100951 · Major POTW · administratively continued, expires 2025-03-31 · 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 2025-03-31 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
16required values missing, on 2 form(s)
2of 11 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 (55)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jun, Jul, Aug
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CDAILY MX <= 50 mg/L Jun, Jul, Aug
001BOD, 5-day, 20 deg. CDAILY MX <= 50 mg/L Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 113 lb/d Jun, Jul, Aug
001BOD, 5-day, 20 deg. CMO AVG <= 163 lb/d Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CDAILY MX <= 188 lb/d Jun, Jul, Aug
001BOD, 5-day, 20 deg. CDAILY MX <= 271 lb/d Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L Jun, Jul, Aug
001BOD, 5-day, 20 deg. CWKLY AVG <= 244 lb/d Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 169 lb/d Jun, Jul, Aug
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L Jun, Jul, Aug
001Solids, total suspendedMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001Solids, total suspendedDAILY MX <= 50 mg/L Jun, Jul, Aug
001Solids, total suspendedDAILY MX <= 50 mg/L Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001Solids, total suspendedMO AVG <= 113 lb/d Jun, Jul, Aug
001Solids, total suspendedMO AVG <= 163 lb/d Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001Solids, total suspendedDAILY MX <= 188 lb/d Jun, Jul, Aug
001Solids, total suspendedDAILY MX <= 271 lb/d Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001Solids, total suspendedWKLY AVG <= 45 mg/L Jun, Jul, Aug
001Solids, total suspendedWKLY AVG <= 45 mg/L Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001Solids, total suspendedWKLY AVG <= 169 lb/d Jun, Jul, Aug
001Solids, total suspendedWKLY AVG <= 244 lb/d Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec
001Solids, settleableDAILY MX <= .3 mL/L all year
001Cadmium, total [as Cd]MO AVG report only Mar, Jun, Sep, Dec
001Cadmium, total [as Cd]MO AVG <= .0026 lb/d Mar, Jun, Sep, Dec
001Copper, total [as Cu]MO AVG report only Mar, Jun, Sep, Dec
001Copper, total [as Cu]DAILY MX report only Mar, Jun, Sep, Dec
001Copper, total [as Cu]MO AVG <= .17 lb/d Mar, Jun, Sep, Dec
001Copper, total [as Cu]DAILY MX <= .22 lb/d Mar, Jun, Sep, Dec
001Lead, total [as Pb]MO AVG report only Mar, Jun, Sep, Dec
001Lead, total [as Pb]MO AVG <= .01 lb/d Mar, Jun, Sep, Dec
001Silver, total [as Ag]MO AVG report only Mar, Jun, Sep, Dec
001Silver, total [as Ag]MO AVG <= .0047 lb/d Mar, Jun, Sep, Dec
001Zinc, total [as Zn]MO AVG report only Mar, Jun, Sep, Dec
001Zinc, total [as Zn]DAILY MX report only Mar, Jun, Sep, Dec
001Zinc, total [as Zn]MO AVG <= .76 lb/d Mar, Jun, Sep, Dec
001Zinc, total [as Zn]DAILY MX <= .61 lb/d Mar, Jun, Sep, Dec
001E. coli, thermotol, MF, MTECMO GEO <= 126 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, thermotol, MF, MTECDAILY MX <= 949 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001Flow, in conduit or thru treatment plantMO AVG <= .65 MGD all year
001Chlorine, total residualMO AVG <= .06 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Chlorine, total residualDAILY MX <= .08 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Analytical ChemistryVALUE report only all year
001Analytical ChemistryVALUE report only all year
001Mercury, total [as Hg]MO AVG <= 16.5 ng/L all year
001Mercury, total [as Hg]DAILY MX <= 24.8 ng/L all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaDAILY MN >= 20 % all year
001NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaDAILY MN >= 20 % all year
001NOAEL Static 48Hr Acute Salvel. SalmonidDAILY 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