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Tap water quality report

Stonegate Md

EPA monitoring tested this supplier for 105 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

105
contaminants tested
24
detected
15,295
people served
0
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
SWP
Ownership
Local government
Counties served
Douglas

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.

0
health-based violations
282
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2020-07-01 → 2020-09-30
MR Monitoring Resolved 2020-07-01 → 2020-09-30
MR Monitoring Resolved 2020-07-01 → 2020-09-30
MR Monitoring Resolved 2020-07-01 → 2020-09-30
MR Monitoring Resolved 2020-07-01 → 2020-09-30
MR Monitoring Resolved 2020-07-01 → 2020-09-30
MR Monitoring Resolved 2017-07-01 → 2017-09-30
MR Monitoring Resolved 2017-07-01 → 2017-09-30
MR Monitoring Resolved 2017-07-01 → 2017-09-30
MR Monitoring Resolved 2017-07-01 → 2017-09-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0039 µg/L 1/4 2024
Pfhpa 0.0031 µg/L 1/4 2024
Pfhxa 0.0038 µg/L 1/4 2024
PFOA 0.0056 µg/L 1/4 2024
PFOS 0.0051 µg/L 1/4 2024
Pfpea 0.0037 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
35.01 µg/L 44%
of the EPA limit 80 µg/L
worst single sample: 48 µg/L
74/74 SYR4 2012–2019
Bromodichloromethane
8.245 µg/L
No EPA limit set
worst single sample: 9.9 µg/L
52/52 SYR4 2015–2019
Dibromochloromethane
14.145 µg/L
No EPA limit set
worst single sample: 17.6 µg/L
52/52 SYR4 2015–2019
Total Haloacetic Acids (HAA5)
5.134 µg/L 8.6%
of the EPA limit 60 µg/L
worst single sample: 6.49 µg/L
49/74 SYR4 2012–2019
Bromoform
11.525 µg/L
No EPA limit set
worst single sample: 17.7 µg/L
48/52 SYR4 2015–2019
Chloroform
3.775 µg/L
No EPA limit set
worst single sample: 5.5 µg/L
46/52 SYR4 2015–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 30/30 LCR 2026
Dibromoacetic Acid
2.125 µg/L
No EPA limit set
worst single sample: 2.6 µg/L
20/52 SYR4 2015–2019
Nitrate
200 µg/L 2%
of the EPA limit 10000 µg/L
 16/32 SYR4 2012–2019
Dichloroacetic Acid
1.59 µg/L
No EPA limit set
worst single sample: 1.7 µg/L
12/52 SYR4 2015–2019
Barium
128.4 µg/L 6.4%
of the EPA limit 2000 µg/L
worst single sample: 134 µg/L
5/5 SYR4 2012–2017
Fluoride
1970 µg/L 49%
of the EPA limit 4000 µg/L
worst single sample: 2020 µg/L
5/5 SYR4 2012–2017
Lithium
23.2 µg/L
No EPA limit set
 4/4 UCMR-5 2024
Arsenic
3.8 µg/L 38%
of the EPA limit 10 µg/L
worst single sample: 4 µg/L
3/5 SYR4 2012–2017
Chromium
2.9 µg/L 2.9%
of the EPA limit 100 µg/L
worst single sample: 3 µg/L
2/5 SYR4 2012–2017
Monochloroacetic Acid
1.499 µg/L
No EPA limit set
worst single sample: 1.52 µg/L
2/52 SYR4 2015–2019
Combined Uranium
1.2 µg/L 4%
of the EPA limit 30 µg/L
 1/2 SYR4 2013–2015
Gross Alpha, Excl. Radon And U
0.6000 pCi/L 4%
of the EPA limit 15 pCi/L
 1/2 SYR4 2013–2015
81 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-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPfdaPfdoaPfeesaPfhpsPFHXSPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PLUMMER, HEIDI
Phone
303-858-9909
Email
[email protected]

Frequently asked questions about Stonegate Md

Is Stonegate Md tap water safe to drink?

EPA monitoring detected 24 contaminants in Stonegate Md'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 Stonegate Md's water?

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

How many people does Stonegate Md serve?

Stonegate Md reports serving 15,295 people in Colorado, per its EPA record.

Has Stonegate Md had any water quality violations?

The EPA has 282 violations on file for Stonegate Md, of which 0 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.