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Tap water quality report

Consolidated Mutual Maple Grove

EPA monitoring tested this supplier for 110 contaminants and detected 28. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

110
contaminants tested
28
detected
81,400
people served
9
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Surface water
Ownership
Local government
Counties served
Jefferson

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.

9
health-based violations
18
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2005-01-01 → 2005-03-31
TT Health-based Resolved 2005-01-01 → 2005-03-31
TT Health-based Resolved 2005-01-01 → 2005-03-31
TT Health-based Resolved 2004-10-01 → 2004-12-31
TT Health-based Resolved 2004-10-01 → 2004-12-31
TT Health-based Resolved 2004-10-01 → 2004-12-31
TT Health-based Resolved 2004-07-01 → 2004-07-31
TT Health-based Resolved 2004-07-01 → 2004-07-31
TT Health-based Resolved 2004-07-01 → 2004-07-31
MR Monitoring Resolved 2016-12-01 → 2016-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0040 µg/L 1/4 2024
Pfhxa 0.0038 µg/L 1/4 2024
Pfpea 0.0035 µg/L 1/4 2024

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
TTHM
48.12 µg/L 60%
of the EPA limit 80 µg/L
worst single sample: 56.94 µg/L
136/136 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
17.085 µg/L 28%
of the EPA limit 60 µg/L
worst single sample: 27.95 µg/L
110/128 SYR4 2012–2019
Chlorite
560 µg/L 56%
of the EPA limit 1000 µg/L
worst single sample: 740 µg/L
102/102 SYR4 2012–2019
Bromodichloromethane
9.235 µg/L
No EPA limit set
worst single sample: 9.6 µg/L
43/43 SYR4 2017–2019
Chloroform
7.9 µg/L
No EPA limit set
worst single sample: 8.2 µg/L
43/43 SYR4 2017–2019
Dibromochloromethane
9.035 µg/L
No EPA limit set
worst single sample: 11 µg/L
43/43 SYR4 2017–2019
Dichloroacetic Acid
5.715 µg/L
No EPA limit set
worst single sample: 5.87 µg/L
39/39 SYR4 2017–2019
Bromoform
2.679 µg/L
No EPA limit set
worst single sample: 3.16 µg/L
35/43 SYR4 2017–2019
Dibromoacetic Acid
3.444 µg/L
No EPA limit set
worst single sample: 3.7 µg/L
35/39 SYR4 2017–2019
Trichloroacetic Acid
2.075 µg/L
No EPA limit set
worst single sample: 2.11 µg/L
26/39 SYR4 2017–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 22/22 LCR 2025
Monobromoacetic Acid
8.0345 µg/L
No EPA limit set
worst single sample: 13.5 µg/L
18/39 SYR4 2017–2019
Nitrate
530 µg/L 5.3%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Barium
45.65 µg/L 2.3%
of the EPA limit 2000 µg/L
worst single sample: 46 µg/L
8/8 SYR4 2012–2019
Fluoride
483.65 µg/L 12%
of the EPA limit 4000 µg/L
worst single sample: 491 µg/L
8/8 SYR4 2012–2019
Lithium
18.7 µg/L
No EPA limit set
 4/4 UCMR-5 2024
Monochloroacetic Acid
4.073 µg/L
No EPA limit set
worst single sample: 4.08 µg/L
3/39 SYR4 2017–2019
Selenium
4.515 µg/L 9%
of the EPA limit 50 µg/L
worst single sample: 4.7 µg/L
2/8 SYR4 2012–2019
2,4-D
0.1890 µg/L 0.3%
of the EPA limit 70 µg/L
 1/8 SYR4 2012–2019
Combined Uranium
0.8642 µg/L 2.9%
of the EPA limit 30 µg/L
 1/2 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
3.8 pCi/L 25%
of the EPA limit 15 pCi/L
 1/2 SYR4 2013–2019
Mercury
0.0610 µg/L 3.1%
of the EPA limit 2 µg/L
 1/8 SYR4 2012–2019
Nitrate-Nitrite
530 µg/L 5.3%
of the EPA limit 10000 µg/L
 1/1 SYR4 2013
Pentachlorophenol
0.4000 µg/L 40%
of the EPA limit 1 µg/L
 1/8 SYR4 2013–2019
Thallium, Total
1.7 µg/L 85%
of the EPA limit 2 µg/L
 1/8 SYR4 2012–2019
82 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPicloramSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JONES, CHRISTOPHER
Phone
303-238-0451
Email
[email protected]

Frequently asked questions about Consolidated Mutual Maple Grove

Is Consolidated Mutual Maple Grove tap water safe to drink?

EPA monitoring detected 28 contaminants in Consolidated Mutual Maple Grove'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 Consolidated Mutual Maple Grove's water?

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

How many people does Consolidated Mutual Maple Grove serve?

Consolidated Mutual Maple Grove reports serving 81,400 people in Colorado, per its EPA record.

Has Consolidated Mutual Maple Grove had any water quality violations?

The EPA has 18 violations on file for Consolidated Mutual Maple Grove, of which 9 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.