Hartford, City of

NPDES permit SD0021750 · Minor POTW · administratively continued, expires 2024-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2024-12-31 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

2values over a limit
2required values missing, on 2 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (2).

Reporting

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

Limits in force (46)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigrade30DA AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Flow rate30DA AVG report only all year
001Flow rateDAILY MX report only all year
001BOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMX 7D AV <= 45 mg/L all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspendedMX 7D AV <= 45 mg/L all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]30DA AVG <= 1.8 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L May, Sep, Oct
001Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 5.1 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 4.2 mg/L May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 2.4 mg/L Jun, Jul, Aug
001Phosphorus, total [as P]DAILY MX report only all year
001E. coli, colony forming units [CFU]30DA GEO <= 630 #/100mL May, Jun, Jul, Aug, Sep
001E. coli, colony forming units [CFU]DAILY MX <= 1178 #/100mL May, Jun, Jul, Aug, Sep
001Flow, totalMO TOTAL report only all year
001Flowing, Receiving StreamDAILY MX report only all year
001Duration of dischargeMO TOTAL report only all year
002Temperature, water deg. centigrade30DA AVG report only all year
002Temperature, water deg. centigradeDAILY MX report only all year
002Flow rate30DA AVG report only all year
002Flow rateDAILY MX report only all year
002BOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L all year
002BOD, 5-day, 20 deg. CMX 7D AV <= 45 mg/L all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspended30DA AVG <= 30 mg/L all year
002Solids, total suspendedMX 7D AV <= 45 mg/L all year
002Nitrogen, total [as N]DAILY MX report only all year
002Nitrogen, ammonia total [as N]30DA AVG <= 1.8 mg/L Jan, Feb, Mar, Apr, Nov, Dec
002Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L May, Sep, Oct
002Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L Jun, Jul, Aug
002Nitrogen, ammonia total [as N]DAILY MX <= 5.1 mg/L Jan, Feb, Mar, Apr, Nov, Dec
002Nitrogen, ammonia total [as N]DAILY MX <= 4.2 mg/L May, Sep, Oct
002Nitrogen, ammonia total [as N]DAILY MX <= 2.4 mg/L Jun, Jul, Aug
002Phosphorus, total [as P]DAILY MX report only all year
002E. coli, colony forming units [CFU]30DA GEO <= 630 #/100mL May, Jun, Jul, Aug, Sep
002E. coli, colony forming units [CFU]DAILY MX <= 1178 #/100mL May, Jun, Jul, Aug, Sep
002Flow, totalMO TOTAL report only all year
002Flowing, Receiving StreamDAILY MX report only all year
002Duration of dischargeMO TOTAL 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