SMITHFIELD TOWN HALL

NPDES permit RI0100251 · Major POTW · administratively continued, expires 2026-06-30 · 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 2026-06-30 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

1values over a limit
0required values missing, on 0 form(s)
0of 19 forms filed late

Last period with anything received: 2026-07-31. Most often over: Chloroform (1).

Reporting

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

Limits in force (103)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 15 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedMO AVG <= 15 mg/L May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedWKLY AVG <= 25 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedWKLY AVG <= 20 mg/L May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedDAILY MX <= 25 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedDAILY MX <= 25 mg/L May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedMO AVG <= 437 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedMO AVG <= 437 lb/d May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedDAILY MX <= 729 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedDAILY MX <= 729 lb/d May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedMO AVG report only May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedWKLY AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedWKLY AVG report only May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedMO AVG report only May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001Solids, settleableWKLY AVG report only all year
001Solids, settleableDAILY MX report only all year
001Oil & GreaseDAILY MX report only all year
001Nitrogen, total [as N]MO AVG <= 10 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, total [as N]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, total [as N]DAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, total [as N]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, total [as N]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 11.2 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 3 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 68 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 40.4 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, nitrite total [as N]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, nitrite total [as N]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, nitrite total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, nitrite total [as N]DAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, nitrate total [as N]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, nitrate total [as N]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, nitrate total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, nitrate total [as N]DAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, Kjeldahl, total [as N]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001Phosphorus, total [as P]MO AVG <= 1 mg/L Jan, Feb, Mar, Nov, Dec
001Phosphorus, total [as P]MO AVG <= .1 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]DAILY MX report only Jan, Feb, Mar, Nov, Dec
001Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
001Cyanide, total [as CN]MO AVG <= 7.1 ug/L all year
001Cyanide, total [as CN]DAILY MX <= 30.2 ug/L all year
001Cadmium, total [as Cd]MO AVG report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Copper, total [as Cu]MO AVG report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Iron, total [as Fe]MO AVG report only all year
001Iron, total [as Fe]DAILY MX report only all year
001Lead, total [as Pb]MO AVG <= .96 ug/L all year
001Lead, total [as Pb]DAILY MX <= 27.1 ug/L all year
001Nickel, total [as Ni]MO AVG report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Zinc, total [as Zn]MO AVG <= 54.4 ug/L all year
001Zinc, total [as Zn]DAILY MX <= 65 ug/L all year
001Aluminum, total [as Al]MO AVG report only all year
001Aluminum, total [as Al]DAILY MX report only all year
001ChloroformMO AVG <= 43.9 ug/L all year
001ChloroformDAILY MX <= 1982 ug/L all year
001Flow, in conduit or thru treatment plantMO AVG <= 3.5 MGD all year
001Chlorine, total residualMO AVG <= 20 ug/L all year
001Chlorine, total residualDAILY MX <= 32.6 ug/L all year
001Phosphorus, orthoMO AVG report only Jan, Feb, Mar, Nov, Dec
001Phosphorus, orthoDAILY MX report only Jan, Feb, Mar, Nov, Dec
001EnterococciMO AVG <= 54 CFU/100mL all year
001EnterococciDAILY MX <= 175 CFU/100mL all year
001Coliform, fecal generalMO AVG report only all year
001Coliform, fecal generalDAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 15 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 25 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 17 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 25 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 292 lb/d May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 437 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 496 lb/d May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 729 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % all year
001LC50 Static Renewal 48Hr Acute Ceriodaphnia dubiaMINIMUM >= 100 % all year
001NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaMINIMUM >= 65 % all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM 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