LOWELL REGIONAL WW UTILITY

NPDES permit MA0100633 · Major POTW · administratively continued, expires 2024-11-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2024-11-30 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

5values over a limit
0required values missing, on 0 form(s)
0of 20 forms filed late

Last period with anything received: 2026-07-31. Most often over: Phosphorus, total [as P] (4), E. coli (1).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among MA permits in EPA's filings — check your permit).

Limits in force (67)

OutfallParameterStatisticLimitMonths
035Temperature, water deg. centigradeDAILY MX report only Jan, Apr, Jul, Oct
035Oxygen, dissolved [DO]MO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct
035pHMINIMUM >= 6 SU all year
035pHMAXIMUM <= 8.3 SU all year
035pHMAXIMUM report only Jan, Apr, Jul, Oct
035Solids, total suspendedMO AVG <= 30 mg/L all year
035Solids, total suspendedWKLY AVG <= 45 mg/L all year
035Solids, total suspendedDAILY MX report only all year
035Solids, total suspendedMO AVG <= 8006 lb/d all year
035Solids, total suspendedDAILY MX report only all year
035Solids, total suspendedWKLY AVG <= 12010 lb/d all year
035Solids, total suspendedMO AVG report only all year
035Solids, total suspendedMO AV MN >= 85 % all year
035Nitrogen, total [as N]MO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct
035Nitrogen, total [as N]MO AVG report only Jan, Feb, Mar, Nov, Dec
035Nitrogen, total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
035Nitrogen, Kjeldahl, total [as N]MO AVG report only Jan, Feb, Mar, Nov, Dec
035Nitrogen, Kjeldahl, total [as N]MO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct
035Nitrogen, Kjeldahl, total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
035Nitrite + Nitrate total [as N]MO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct
035Nitrite + Nitrate total [as N]MO AVG report only Jan, Feb, Mar, Nov, Dec
035Nitrite + Nitrate total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
035Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Nov, Dec
035Phosphorus, total [as P]MO AVG <= 1.08 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
035Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
035Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
035Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
035Phosphorus, total [as P]MO AVG <= 1.08 lb/d Apr, May, Jun, Jul, Aug, Sep, Oct
035Carbon, tot organic [TOC]DAILY MX report only Jan, Apr, Jul, Oct
035Carbon, tot organic [TOC]DAILY MX report only Jan, Apr, Jul, Oct
035Carbon, dissolved organic [as C]DAILY MX report only Jan, Apr, Jul, Oct
035Carbon, dissolved organic [as C]DAILY MX report only Jan, Apr, Jul, Oct
035Hardness, total [as CaCO3]DAILY MX report only Jan, Apr, Jul, Oct
035Hardness, total [as CaCO3]DAILY MX report only Jan, Apr, Jul, Oct
035Cadmium, total [as Cd]DAILY MX report only Jan, Apr, Jul, Oct
035Cadmium, total [as Cd]DAILY MX report only Jan, Apr, Jul, Oct
035Copper, total [as Cu]DAILY MX report only Jan, Apr, Jul, Oct
035Copper, total [as Cu]DAILY MX report only Jan, Apr, Jul, Oct
035Lead, total [as Pb]DAILY MX report only Jan, Apr, Jul, Oct
035Lead, total [as Pb]DAILY MX report only Jan, Apr, Jul, Oct
035Nickel, total [as Ni]DAILY MX report only Jan, Apr, Jul, Oct
035Nickel, total [as Ni]DAILY MX report only Jan, Apr, Jul, Oct
035Zinc, total [as Zn]DAILY MX report only Jan, Apr, Jul, Oct
035Zinc, total [as Zn]DAILY MX report only Jan, Apr, Jul, Oct
035Aluminum, total [as Al]DAILY MX report only Jan, Apr, Jul, Oct
035Aluminum, total [as Al]DAILY MX report only Jan, Apr, Jul, Oct
035Flow, in conduit or thru treatment plantROLL AVG <= 32 MGD all year
035Flow, in conduit or thru treatment plantDAILY MX report only all year
035Flow, in conduit or thru treatment plantMO AVG report only all year
035Chlorine, total residualMO AVG <= 196 ug/L all year
035Chlorine, total residualDAILY MX <= 338 ug/L all year
035Chlorine, total residualMO AVG report only all year
035Chlorine, total residualDAILY MX report only all year
035E. coliMO GEO <= 126 CFU/100mL all year
035E. coliDAILY MX <= 409 CFU/100mL all year
035Nitrogen, Ammonia TotalDAILY MX report only Jan, Apr, Jul, Oct
035Nitrogen, Ammonia TotalDAILY MX report only Jan, Apr, Jul, Oct
035BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
035BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 40 mg/L all year
035BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
035BOD, carbonaceous [5 day, 20 C]MO AVG <= 6672 lb/d all year
035BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
035BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 10675 lb/d all year
035BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
035BOD, carbonaceous [5 day, 20 C]MO AV MN >= 85 % all year
035LC50 Static 48Hr Acute Ceriodaphnia dubiaDAILY MN >= 100 % Jan, Apr, Jul, Oct
035NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaDAILY MN report only Jan, Apr, Jul, Oct

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