NIAGARA COUNTY SD NO.1

NPDES permit NY0027979 · Major POTW · administratively continued, expires 2020-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2020-03-31 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

3values 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: Flow, in conduit or thru treatment plant (1), Coliform, fecal general (1), Solids, settleable (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 (52)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMINIMUM report only all year
001pHMAXIMUM report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspended7 DA AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 3522 lb/d all year
001Solids, total suspended7 DA AVG <= 5284 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, settleableDAILY MX <= .1 mL/L all year
001Solids, settleableDAILY MX report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]MO AVG report only all year
001Arsenic, total recoverableDAILY MX <= .62 lb/d (alert) all year
001Selenium, total recoverableDAILY MX <= 1.5 lb/d (alert) all year
001Nickel, total recoverableDAILY MX <= 5 lb/d (alert) all year
001Silver total recoverableDAILY MX <= 1.1 lb/d (alert) all year
001Zinc, total recoverableDAILY MX <= 10 lb/d (alert) all year
001Lead, total recoverableDAILY MX <= .89 lb/d (alert) all year
001Chromium, total recoverableDAILY MX <= .87 lb/d (alert) all year
001Antimony, total recoverableDAILY MX <= 2.5 lb/d (alert) all year
001Carbon tetrachlorideDAILY MX <= 1.2 lb/d (alert) all year
001ChloroformDAILY MX <= .92 lb/d (alert) all year
001Methylene chlorideDAILY MX <= 1.2 lb/d (alert) all year
0011,1-DichloroethyleneDAILY MX <= .4 lb/d (alert) all year
0011,1,1-TrichloroethaneDAILY MX <= 1.2 lb/d (alert) all year
001Nitrogen, ammonia, total [as NH3]DAILY MX report only all year
0011,2-DichloroetheneDAILY MX <= 2.4 lb/d (alert) all year
001Vinyl chlorideDAILY MX <= .5 lb/d (alert) all year
001TrichloroethyleneDAILY MX <= .88 lb/d (alert) all year
001PhenolsDAILY MX <= .1 mg/L all year
001PhenolsDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG <= 14.08 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= 2 mg/L all year
001EnterococciDAILY MX report only all year
001Nitrogen, nitrate total [as NO3]DAILY MX report only all year
001Nitrogen, nitrite total [as NO2]DAILY MX report only all year
001Mercury, total [as Hg]DAILY MX <= 50 ng/L 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 <= 2936 lb/d all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 4697 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO 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