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Tap water quality report

Maricopa Consolidated Dwid

EPA monitoring tested this supplier for 71 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
12
detected
928
people served
7
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Private
Counties served
Pinal

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.

7
health-based violations
129
violations on file
2
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
MCL Health-based Archived 2020-10-01 → 2020-12-31
TT Health-based Unaddressed 2018-06-15
MCL Health-based Resolved 2002-07-01 → 2002-07-31
MR Monitoring Archived 2026-01-01 → 2026-01-31
RPT Monitoring Unaddressed 2025-07-02
Other Monitoring Resolved 2024-12-20

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
9700 µg/L 97%
of the EPA limit 10000 µg/L
worst single sample: 10000 µg/L
58/58 SYR4 2012–2019
Arsenic
9.93 µg/L 99%
of the EPA limit 10 µg/L
worst single sample: 12 µg/L
43/43 SYR4 2012–2019
Copper
168 µg/L 13%
of the EPA limit 1300 µg/L
worst single sample: 540 µg/L
33/34 SYR4 2013–2019
Fluoride
2600 µg/L 65%
of the EPA limit 4000 µg/L
 19/20 SYR4 2012–2018
Lead
6.86 µg/L 46%
of the EPA limit 15 µg/L
worst single sample: 8 µg/L
7/34 SYR4 2013–2019
TTHM
60.8 µg/L 76%
of the EPA limit 80 µg/L
worst single sample: 80 µg/L
7/7 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2025
Total Haloacetic Acids (HAA5)
2.45 µg/L 4.1%
of the EPA limit 60 µg/L
worst single sample: 2.5 µg/L
6/7 SYR4 2012–2019
Barium
90.8 µg/L 4.5%
of the EPA limit 2000 µg/L
worst single sample: 91 µg/L
3/3 SYR4 2016–2018
Chromium
4.8 µg/L 4.8%
of the EPA limit 100 µg/L
 3/3 SYR4 2016–2018
Selenium
14.25 µg/L 28%
of the EPA limit 50 µg/L
worst single sample: 15 µg/L
3/3 SYR4 2016–2018
Nitrate-Nitrite
3900 µg/L 39%
of the EPA limit 10000 µg/L
 1/1 SYR4 2013
59 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 TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HAZEN, ADAM
Phone
520-752-7516
Email
mcdwaterfield@gmail.com

Frequently asked questions about Maricopa Consolidated Dwid

Is Maricopa Consolidated Dwid tap water safe to drink?

EPA monitoring detected 12 contaminants in Maricopa Consolidated Dwid'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 Maricopa Consolidated Dwid's water?

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

How many people does Maricopa Consolidated Dwid serve?

Maricopa Consolidated Dwid reports serving 928 people in Arizona, per its EPA record.

Has Maricopa Consolidated Dwid had any water quality violations?

The EPA has 129 violations on file for Maricopa Consolidated Dwid, of which 7 are health-based (a contaminant limit or required treatment was breached) and 2 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.