Sewer overflows in New York

Name: Sewer overflow events in New York
Creator: Sewage Monitor

Sewer overflow record — reported spills, the worst utilities, and how often overflows reached waterways in New York.

Reported events

14,394

Total volume

17.1B gal

Reached waterways

13,338(93%)

Latest event

Mar 29, 2023

Worst utilities in New York

Ranked by number of reported overflow events.

#	Utility	Events	Volume	Reached water
1	Kenmore (V) POSS	2,817	160 gal	2,817
2	Cheektowaga Sanitary Sewer	1,020	220.5M gal	1,020
3	Metropolitan Syracuse WWTP	978	85K gal	949
4	West Seneca (T) Sanitary ORF	657	2K gal	655
5	Niagara Falls (C) WWTP	542	5.8B gal	540
6	Kingston (C) WWTP	455	645.9M gal	179
7	Watertown (C) WPCP	453	268.5M gal	453
8	Ogdensburg WWTP	404	150.8M gal	404
9	City of Albany CSOs	306	3.6B gal	303
10	Rensselaer (C) CSOs	256	10.8M gal	256
11	Hudson (C) STP	229	90.6M gal	228
12	NYCDEP City Wide CSO	211	0 gal	210
13	Tonawanda (T) SD #2 WWTP	210	175K gal	209
14	Southtowns AWTF- ECSD #3	204	13.3M gal	201
15	Buffalo Sewer Authority -Bird Island	198	1.8B gal	186
16	Troy CSOs	195	0 gal	195
17	Auburn (C) STP	194	74.2M gal	191
18	Grand Island (T) SD#2 WWTP	190	9.4M gal	186
19	Washington County SD #2 WWTP	190	10.9M gal	187
20	Newburgh (C) WWTP	185	1K gal	180
21	Poughkeepsie (C) WPCP	175	95K gal	175
22	Warwick (T) SD #1 NY0021890	161	276 gal	69
23	Mount Vernon Sewer District	156	13.1M gal	154
24	Plattsburgh (C) WPCP/WRRF	149	7.7M gal	148
25	Lancaster (V) Sanitary Sewer Overflow NY0243124	134	278 gal	134
26	Lockport (C) WWTP	130	822K gal	130
27	ECSD #4 NY0110698	129	190.6M gal	126
28	Green Island (V) CSOs	118	0 gal	118
29	Tonawanda (C) Sanitary Sewers	116	101.0M gal	98
30	Chemung Co Elmira SD STP	109	45.7M gal	109

The largest single reported overflow events.

321.0M galFeb 16, 2022
Niagara Falls (C) WWTP
Reached Lower Niagara River
313.1M galFeb 16, 2022
Niagara Falls (C) WWTP
Reached Lower Niagara River
313.1M galFeb 16, 2022
Niagara Falls (C) WWTP
Reached Lower Niagara River
310.6M galFeb 16, 2022
Niagara Falls (C) WWTP
Reached Lower Niagara River
302.7M galFeb 16, 2022
Niagara Falls (C) WWTP
Reached Lower Niagara River
250.0M galAug 30, 2022
Buffalo Sewer Authority -Bird Island
Reached Buffalo River,Black Rock Canal, Scajaquada Creek, Niagara River, Cazenovia Creek, Erie Basin
173.8M galDec 22, 2022
Kingston (C) WWTP
Reached Rondout Creek
173.8M galDec 22, 2022
Kingston (C) WWTP
Reached Rondout Creek
150.0M galFeb 16, 2022
Niagara Falls (C) WWTP
Reached Lower Niagara River
150.0M galFeb 16, 2022
Niagara Falls (C) WWTP
Reached Lower Niagara River