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Tap water quality report

Roxborough Wsd

EPA monitoring tested this supplier for 104 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

104
contaminants tested
20
detected
13,765
people served
8
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Surface water
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.

8
health-based violations
25
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2020-06-01 → 2020-06-30
TT Health-based Resolved 2020-06-01 → 2020-06-30
TT Health-based Resolved 2020-06-01 → 2020-06-30
TT Health-based Resolved 2020-06-01 → 2020-06-30
MCL Health-based Resolved 2010-08-01 → 2010-08-31
MCL Health-based Resolved 2010-08-01 → 2010-08-31
MCL Health-based Resolved 2010-08-01 → 2010-08-31
MCL Health-based Resolved 2010-08-01 → 2010-08-31
MR Monitoring Resolved 2013-10-01 → 2013-12-31
MR Monitoring Resolved 2013-10-01 → 2013-12-31

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
Total Haloacetic Acids (HAA5)
41.0255 µg/L 68%
of the EPA limit 60 µg/L
worst single sample: 54.22 µg/L
94/94 SYR4 2012–2019
TTHM
80.44 µg/L 101%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 96.2 µg/L
93/93 SYR4 2012–2019
Bromodichloromethane
18.36 µg/L
No EPA limit set
worst single sample: 19.2 µg/L
57/57 SYR4 2012–2019
Chloroform
63.06 µg/L
No EPA limit set
worst single sample: 71.9 µg/L
57/57 SYR4 2012–2019
Dibromochloromethane
8.06 µg/L
No EPA limit set
worst single sample: 9.3 µg/L
57/57 SYR4 2012–2019
Dichloroacetic Acid
20.556 µg/L
No EPA limit set
worst single sample: 25 µg/L
54/54 SYR4 2015–2019
Trichloroacetic Acid
17.001 µg/L
No EPA limit set
worst single sample: 20.25 µg/L
54/54 SYR4 2015–2019
Dibromoacetic Acid
1.908 µg/L
No EPA limit set
worst single sample: 1.94 µg/L
25/54 SYR4 2015–2019
Monochloroacetic Acid
2.546 µg/L
No EPA limit set
worst single sample: 2.83 µg/L
25/54 SYR4 2015–2019
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2025
Nitrate
200 µg/L 2%
of the EPA limit 10000 µg/L
 16/22 SYR4 2012–2019
Fluoride
655 µg/L 16%
of the EPA limit 4000 µg/L
worst single sample: 770 µg/L
11/11 SYR4 2012–2019
Barium
46.65 µg/L 2.3%
of the EPA limit 2000 µg/L
worst single sample: 48 µg/L
10/10 SYR4 2012–2019
Bromoform
1.1 µg/L
No EPA limit set
 4/57 SYR4 2012–2019
Monobromoacetic Acid
2.614 µg/L
No EPA limit set
worst single sample: 2.74 µg/L
3/54 SYR4 2015–2019
Chromium
1.95 µg/L 2%
of the EPA limit 100 µg/L
worst single sample: 2 µg/L
2/10 SYR4 2012–2019
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
 1/10 SYR4 2012–2019
Nitrate-Nitrite
86 µg/L 0.9%
of the EPA limit 10000 µg/L
 1/1 SYR4 2012
Selenium
2 µg/L 4%
of the EPA limit 50 µg/L
 1/10 SYR4 2012–2019
Lithium
9.09 µg/L
No EPA limit set
 1/4 UCMR-5 2025
84 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 TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MARCUM, MIKE
Phone
303-979-7286
Email
[email protected]

Frequently asked questions about Roxborough Wsd

Is Roxborough Wsd tap water safe to drink?

EPA monitoring detected 20 contaminants in Roxborough Wsd'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 Roxborough Wsd's water?

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

How many people does Roxborough Wsd serve?

Roxborough Wsd reports serving 13,765 people in Colorado, per its EPA record.

Has Roxborough Wsd had any water quality violations?

The EPA has 25 violations on file for Roxborough Wsd, 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.