NASSAU CO DPW

NPDES permit NY0026859 · Major POTW · administratively continued, expires 2026-01-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2026-01-31 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

0values over a limit
0required values missing, on 0 form(s)
0of 43 forms filed late

Last period with anything received: 2026-07-31.

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 (53)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspended7 DA AVG <= 45 mg/L all year
001Solids, total suspended7G report only all year
001Solids, total suspended7G report only all year
001Solids, settleableDAILY MX <= .3 mL/L all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, nitrite total [as N]DAILY MX report only all year
001Nitrogen, nitrate total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MX report only (alert) all year
001Cadmium, total [as Cd]DAILY MX <= 3 lb/d (alert) all year
001Chromium, total [as Cr]DAILY MX report only (alert) all year
001Chromium, total [as Cr]DAILY MX <= 8 lb/d (alert) all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX <= 33 lb/d all year
001Lead, total [as Pb]DAILY MX report only (alert) all year
001Lead, total [as Pb]DAILY MX <= 3.3 lb/d (alert) all year
001Nickel, total [as Ni]DAILY MX report only (alert) all year
001Nickel, total [as Ni]DAILY MX <= 9.4 lb/d (alert) all year
001Zinc, total [as Zn]DAILY MX report only (alert) all year
001Zinc, total [as Zn]DAILY MX <= 72 lb/d (alert) all year
001Phosphate, ortho [as P]DAILY MX report only all year
001Phosphate, ortho [as P]DAILY MX report only all year
001TolueneDAILY MX report only (alert) all year
001TolueneDAILY MX <= 3.6 lb/d (alert) all year
001Methylene chlorideDAILY MX report only (alert) all year
001Methylene chlorideDAILY MX <= 14 lb/d (alert) all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG <= 72 MGD all year
001Chlorine, total residualDAILY MX <= 2 mg/L all year
001Enterococci30DA GM report only all year
001Mercury, total [as Hg]DAILY MX <= 50 ng/L all year
001Mercury, total [as Hg]ROLL AVG <= 19 ng/L all year
001Coliform, fecal general30DA GM <= 200 #/100mL all year
001Coliform, fecal general7 DA GEO <= 400 #/100mL all year
001Coliform, total generalMO MED <= 700 #/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]7 DA 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
001TetrachloroethyleneDAILY MX report only (alert) all year
001TetrachloroethyleneDAILY MX <= .8 lb/d (alert) all year
00148Hr Acute Mysidopsis BahiaMAXIMUM <= 18.9 tox acute (alert) all year
001TU 48Hr Acute Cyprinodon variegatusMAXIMUM <= 18.9 tox acute (alert) all year
001TU Static Renewal Chronic Cyprinodeon variegatusMAXIMUM <= 130 tox chronic (alert) all year
001TU Static Renewal 7-Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MAXIMUM <= 130 tox chronic (alert) 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