STAMFORD (V)

NPDES permit NY0021555 · Minor POTW · effective, expires 2029-06-30 · 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.

EPA's record, 2025-09-01 to 2026-08-31

2values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 2026-08-31. Most often over: Flow, in conduit or thru treatment plant (1), Carbonaceous oxygen demand, % removal (1).

Reporting

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

Limits in force (43)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001TurbidityINST MAX <= 5 NTU all year
001Oxygen demand, ultimateMO AVG <= 279 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001Oxygen demand, ultimateMO AVG <= 183 lb/d Jun, Jul, Aug, Sep, Oct
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001BOD, 5-day, 20 deg. C7 DA AVG <= 2500 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 8.5 SU all year
001pHMINIMUM report only all year
001pHMAXIMUM report only all year
001Solids, total suspendedMO AVG <= 10 mg/L all year
001Solids, total suspended7 DA AVG <= 15 mg/L all year
001Solids, total suspendedMO AVG <= 58 lb/d all year
001Solids, total suspended7 DA AVG <= 88 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspended7 DA AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspended7 DA AVG report only all year
001Solids, settleableDAILY MX <= .1 mL/L all year
001Solids, settleableDAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG <= .13 mg/L all year
001Phosphorus, total [as P]MO AVG <= .8 lb/d all year
001Nitrogen, ammonia, total [as NH3]MO AVG <= 4.1 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, ammonia, total [as NH3]MO AVG <= 1.4 mg/L Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia, total [as NH3]MO AVG <= 292 lb/d all year
001Flow, in conduit or thru treatment plantMO AVG <= .7 MGD all year
001Chlorine, total residualDAILY MX <= .1 mg/L all year
001Chlorine, total residualMINIMUM >= .2 mg/L all year
001Turbidity, time above limitDAILY MX <= 2160 min all year
001Coliform, fecal general30DA GEO <= 200 #/100mL all year
001Coliform, fecal general7 DA GEO <= 400 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 146 lb/d all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 235 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG report only all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Carbonaceous oxygen demand, % removalMO AV MN >= 85 % 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