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Tap water quality report

Cooks Falls Water District

EPA monitoring tested this supplier for 74 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

74
contaminants tested
9
detected
150
people served
1
health-based violations
Water source
Ground water
Ownership
Local government
Counties served
Delaware

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

1
health-based violations
423
violations on file
14
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2001-05-01 → 2001-05-31
MON Monitoring Resolved 2025-12-01 → 2025-12-31
MON Monitoring Resolved 2025-12-01 → 2025-12-31
MON Monitoring Resolved 2025-12-01 → 2025-12-31
MR Monitoring Archived 2025-07-01 → 2025-12-31
MR Monitoring Archived 2025-07-01 → 2025-12-31
MR Monitoring Unaddressed 2025-07-01
MR Monitoring Unaddressed 2025-07-01
MON Monitoring Resolved 2025-07-01 → 2025-07-31
MON Monitoring Resolved 2025-07-01 → 2025-07-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
37/37 LCR 2025
Nitrate
637 µg/L 6.4%
of the EPA limit 10000 µg/L
16/16 SYR4 2012–2019
TTHM
8.07 µg/L 10%
of the EPA limit 80 µg/L
4/4 SYR4 2014–2019
Barium
20.4 µg/L 1%
of the EPA limit 2000 µg/L
3/3 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
5.7 µg/L 9.5%
of the EPA limit 60 µg/L
3/4 SYR4 2014–2019
Copper
186 µg/L 14%
of the EPA limit 1300 µg/L
2/6 SYR4 2018–2019
Chloroform
1.04 µg/L
No EPA limit set
1/1 SYR4 2014
Combined Radium (-226 And -228)
0.2000 pCi/L 4%
of the EPA limit 5 pCi/L
1/1 SYR4 2014
Lead
1.1 µg/L 7.3%
of the EPA limit 15 µg/L
1/6 SYR4 2018–2019
65 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
COLCHESTER SUPERVISOR AND TOWN BOARD
Phone
607-363-7906
Email
r.hafele@colchesterny.gov

Frequently asked questions about Cooks Falls Water District

Is Cooks Falls Water District tap water safe to drink?

EPA monitoring detected 9 contaminants in Cooks Falls Water District's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Cooks Falls Water District's water?

EPA monitoring detected Lead, Nitrate, TTHM, Barium, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Cooks Falls Water District serve?

Cooks Falls Water District reports serving 150 people in New York, per its EPA record.

Has Cooks Falls Water District had any water quality violations?

The EPA has 423 violations on file for Cooks Falls Water District, of which 1 is health-based (a contaminant limit or required treatment was breached) and 14 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.