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Tap water quality report

Jones Coop Water Assoc

EPA monitoring tested this supplier for 69 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
8
detected
35
people served
58
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Mixed public/private
Counties served
Yuma

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.

58
health-based violations
388
violations on file
51
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
MCL Health-based Resolved 2024-10-01 → 2024-12-31
MCL Health-based Resolved 2024-10-01 → 2024-12-31
MCL Health-based Resolved 2024-10-01 → 2024-12-31
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-07-01 → 2024-09-30

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
2700 µg/L 27%
of the EPA limit 10000 µg/L
 18/18 SYR4 2012–2019
Arsenic
14 µg/L 140%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
 13/19 SYR4 2016–2019
Copper
147.75 µg/L 11%
of the EPA limit 1300 µg/L
worst single sample: 170 µg/L
6/10 SYR4 2012–2016
Lead
0.0126 mg/L 84%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2018
Lead
15.385 µg/L 103%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 16.6 µg/L
4/10 SYR4 2012–2016
Barium
53.7 µg/L 2.7%
of the EPA limit 2000 µg/L
worst single sample: 54 µg/L
2/2 SYR4 2016–2019
Fluoride
1094 µg/L 27%
of the EPA limit 4000 µg/L
worst single sample: 1100 µg/L
2/2 SYR4 2016–2019
Nitrate-Nitrite
2171 µg/L 22%
of the EPA limit 10000 µg/L
worst single sample: 2180 µg/L
2/2 SYR4 2012–2013
61 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KNOWLTON, CAROLYN
Email
[email protected]

Frequently asked questions about Jones Coop Water Assoc

Is Jones Coop Water Assoc tap water safe to drink?

EPA monitoring detected 8 contaminants in Jones Coop Water Assoc'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 Jones Coop Water Assoc's water?

EPA monitoring detected Nitrate, Arsenic, Copper, Lead, Lead, and others. The full list with the level and data source for each is above.

How many people does Jones Coop Water Assoc serve?

Jones Coop Water Assoc reports serving 35 people in Arizona, per its EPA record.

Has Jones Coop Water Assoc had any water quality violations?

The EPA has 388 violations on file for Jones Coop Water Assoc, of which 58 are health-based (a contaminant limit or required treatment was breached) and 51 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.