CORTLAND (C)

NPDES permit NY0027561 · Major POTW · effective, expires 2031-04-30 · 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

8values over a limit
2required values missing, on 1 form(s)
2of 38 forms filed late

Last period with anything received: 2026-07-31. Most often over: Phosphorus, total [as P] (3), Flow, in conduit or thru treatment plant (1), Solids, suspended percent removal (1).

Reporting

Reports are due about 59 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (83)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN 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 suspendedMO AVG <= 2200 lb/d all year
001Solids, total suspended7 DA AVG <= 3400 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspended7 DA AVG report only all year
001Solids, settleableDAILY MX <= .3 mL/L all year
001Solids, settleableDAILY MX report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO TOTAL report only all year
001Nitrogen, total [as N]12 <= 219000 lb/yr all year
001Nitrogen, ammonia total [as N]MO AVG <= 2.2 mg/L Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 1.9 mg/L Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 7 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, nitrite total [as N]MO AVG report only (alert) Jun, Jul, Aug, Sep, Oct
001Nitrogen, nitrite total [as N]MO AVG report only (alert) Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, nitrite total [as N]DAILY MX <= .35 mg/L (alert) Jun, Jul, Aug, Sep, Oct
001Nitrogen, nitrite total [as N]DAILY MX <= .62 mg/L (alert) Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, nitrite total [as N]MO AVG report only (alert) Jun, Jul, Aug, Sep, Oct
001Nitrogen, nitrite total [as N]MO AVG report only (alert) Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, nitrite total [as N]DAILY MX report only (alert) Jun, Jul, Aug, Sep, Oct
001Nitrogen, nitrite total [as N]DAILY MX report only (alert) Jan, Feb, Mar, Apr, May, Nov, Dec
001Nitrogen, nitrate total [as N]MO AVG report only all year
001Nitrogen, nitrate total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]MO TOTAL report only all year
001Phosphorus, total [as P]12 <= 13700 lb/yr all year
001Cyanide, free [amenable to chlorination]DAILY MX <= 19 ug/L all year
001Cyanide, free [amenable to chlorination]DAILY MX report only all year
001Cyanide, free [amenable to chlorination]DAILY MX report only all year
001Cyanide, free [amenable to chlorination]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only (alert) all year
001Copper, total [as Cu]DAILY MX <= 2.7 lb/d (alert) all year
001Iron, total [as Fe]DAILY MX report only (alert) all year
001Iron, total [as Fe]DAILY MX <= 130 lb/d (alert) all year
001Lead, total [as Pb]DAILY MX report only (alert) all year
001Lead, total [as Pb]DAILY MX <= 1.2 lb/d (alert) all year
001Silver, total [as Ag]DAILY MX report only (alert) all year
001Silver, total [as Ag]DAILY MX <= .15 lb/d (alert) all year
001Cadmium, total recoverableDAILY MX report only all year
001Cadmium, total recoverableDAILY MX <= .74 lb/d all year
001Phenolics, total recoverableDAILY MX report only all year
001Phenolics, total recoverableDAILY MX <= .83 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX report only (alert) all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .6 lb/d (alert) all year
001Flow, in conduit or thru treatment plantMO AVG <= 9 MGD all year
001Chlorine, total residualMO AVG <= 100 ug/L all year
001Chlorine, total residualDAILY MX <= 30 ug/L all year
001Chlorine, total residualDAILY MX <= 100 ug/L all year
001Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute (alert) Jun, Jul, Aug, Sep, Oct
001Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1.5 tox acute (alert) Jan, Feb, Mar, Apr, May, Nov, Dec
001Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 3.5 tox chronic (alert) Jun, Jul, Aug, Sep, Oct
001Toxicity [chronic], Ceriodaphnia dubiaDAILY MX <= 6.2 tox chronic (alert) Jan, Feb, Mar, Apr, May, Nov, Dec
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1.5 tox acute (alert) Jan, Feb, Mar, Apr, May, Nov, Dec
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute (alert) Jun, Jul, Aug, Sep, Oct
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 3.5 tox chronic (alert) Jun, Jul, Aug, Sep, Oct
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX <= 6.2 tox chronic (alert) Jan, Feb, Mar, Apr, May, Nov, Dec
001Mercury, total [as Hg]DAILY MX <= 50 ng/L all year
001Mercury, total [as Hg]ROLL AVG <= 12 ng/L all year
001Phenols, chlorinatedDAILY MX report only all year
001Coliform, fecal general30DA GEO <= 200 #/100mL May, Jun, Jul, Aug, Sep, Oct
001Coliform, fecal general7 DA GEO <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
001Phenolic compounds, unchlorinatedDAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 30 mg/L Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 1900 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 1900 lb/d Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 3000 lb/d Jan, Feb, Mar, Apr, May, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 2300 lb/d Jun, Jul, Aug, Sep, Oct
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