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Tap water quality report

Cook Road Water District

EPA monitoring tested this supplier for 79 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
17
detected
291
people served
8
health-based violations
Wyoming rankingsLead in WyomingPFAS in Wyoming
Water source
Ground water
Ownership
Local government
Counties served
Campbell

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.

8
health-based violations
12
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2012-04-01 → 2012-06-30
MCL Health-based Resolved 2012-04-01 → 2012-06-30
MCL Health-based Resolved 2012-01-01 → 2012-03-31
MCL Health-based Resolved 2012-01-01 → 2012-03-31
MCL Health-based Resolved 2009-01-01 → 2011-12-31
MCL Health-based Resolved 2009-01-01 → 2011-12-31
MCL Health-based Archived 2001-10-01 → 2001-10-31
MCL Health-based Archived 2000-11-01 → 2000-11-30
MR Monitoring Archived 1998-01-01 → 1998-01-31
MR Monitoring Archived 1998-01-01 → 1998-03-31

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate-Nitrite
3100 µg/L 31%
of the EPA limit 10000 µg/L
 18/18 SYR4 2012–2019
Combined Radium (-226 And -228)
6.6 pCi/L 132%
of the EPA limit, at the 95th percentile of samples — 5 pCi/L
worst single sample: 9.7 pCi/L
11/11 SYR4 2012–2017
Copper
121.85 µg/L 9.4%
of the EPA limit 1300 µg/L
worst single sample: 125 µg/L
10/10 SYR4 2014–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2024
Gross Alpha, Excl. Radon And U
14.95 pCi/L 100%
of the EPA limit 15 pCi/L
worst single sample: 17.7 pCi/L
6/7 SYR4 2012–2017
Bromodichloromethane
4.06 µg/L
No EPA limit set
worst single sample: 4.2 µg/L
5/5 SYR4 2014–2017
Bromoform
2.52 µg/L
No EPA limit set
worst single sample: 2.6 µg/L
5/5 SYR4 2014–2017
Chloroform
2.56 µg/L
No EPA limit set
worst single sample: 2.6 µg/L
5/5 SYR4 2014–2017
Dibromochloromethane
5.22 µg/L
No EPA limit set
worst single sample: 5.3 µg/L
5/5 SYR4 2014–2017
Lead
7.6 µg/L 51%
of the EPA limit 15 µg/L
worst single sample: 9 µg/L
5/10 SYR4 2014–2017
TTHM
12.6 µg/L 16%
of the EPA limit 80 µg/L
worst single sample: 13 µg/L
5/5 SYR4 2014–2017
Xylenes, Total
1.185 µg/L 0%
of the EPA limit 10000 µg/L
worst single sample: 1.2 µg/L
4/10 SYR4 2013–2019
Barium
297 µg/L 15%
of the EPA limit 2000 µg/L
worst single sample: 300 µg/L
3/3 SYR4 2013–2017
Fluoride
1470 µg/L 37%
of the EPA limit 4000 µg/L
worst single sample: 1500 µg/L
3/3 SYR4 2013–2017
Dibromoacetic Acid
2.145 µg/L
No EPA limit set
worst single sample: 2.2 µg/L
2/2 SYR4 2014–2017
Dichloroacetic Acid
1.558 µg/L
No EPA limit set
worst single sample: 1.6 µg/L
2/2 SYR4 2014–2017
Total Haloacetic Acids (HAA5)
3 µg/L 5%
of the EPA limit 60 µg/L
 2/2 SYR4 2014–2017
62 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MELICK, CHEYENNE
Phone
307-299-3544
Email
[email protected]

Frequently asked questions about Cook Road Water District

Is Cook Road Water District tap water safe to drink?

EPA monitoring detected 17 contaminants in Cook Road 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 Cook Road Water District's water?

EPA monitoring detected Nitrate-Nitrite, Combined Radium (-226 And -228), Copper, Lead, Gross Alpha, Excl. Radon And U, and others. The full list with the level and data source for each is above.

How many people does Cook Road Water District serve?

Cook Road Water District reports serving 291 people in Wyoming, per its EPA record.

Has Cook Road Water District had any water quality violations?

The EPA has 12 violations on file for Cook Road Water District, of which 8 are health-based (a contaminant limit or required treatment was breached) and 0 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.