Tap WaterIndex

← Colorado

Tap water quality report

Parker Wsd

EPA monitoring tested this supplier for 111 contaminants and detected 32. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

111
contaminants tested
32
detected
75,949
people served
9
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.

9
health-based violations
465
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2000-08-01 → 2000-08-31
MCL Health-based Resolved 2000-08-01 → 2000-08-31
MCL Health-based Resolved 2000-08-01 → 2000-08-31
MCL Health-based Resolved 2000-08-01 → 2000-08-31
MCL Health-based Resolved 2000-08-01 → 2000-08-31
MCL Health-based Resolved 2000-08-01 → 2000-08-31
MCL Health-based Resolved 1996-03-01 → 1996-03-31
MCL Health-based Resolved 1996-03-01 → 1996-03-31
MCL Health-based Resolved 1996-03-01 → 1996-03-31
RPT Monitoring Resolved 2025-07-02

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0119 µg/L 8/26 2025
Pfpea 0.0140 µg/L 8/26 2025
Pfba 0.0086 µg/L 5/26 2025
PFBS 0.0046 µg/L 5/26 2025
PFOA 0.0048 µg/L 2/26 2025

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
52.2 µg/L 65%
of the EPA limit 80 µg/L
 153/159 SYR4 2012–2019
Nitrate
895 µg/L 9%
of the EPA limit 10000 µg/L
 130/268 SYR4 2012–2019
Chloroform
13 µg/L
No EPA limit set
 116/140 SYR4 2012–2019
Dibromochloromethane
19 µg/L
No EPA limit set
 115/140 SYR4 2012–2019
Bromodichloromethane
17 µg/L
No EPA limit set
 114/140 SYR4 2012–2019
Bromoform
10 µg/L
No EPA limit set
 98/140 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
17.4 µg/L 29%
of the EPA limit 60 µg/L
 96/156 SYR4 2012–2019
Dichloroacetic Acid
12 µg/L
No EPA limit set
 80/120 SYR4 2015–2019
Dibromoacetic Acid
7.5 µg/L
No EPA limit set
 77/120 SYR4 2015–2019
Chlorite
350 µg/L 35%
of the EPA limit 1000 µg/L
 71/138 SYR4 2015–2019
Nitrate-Nitrite
895 µg/L 9%
of the EPA limit 10000 µg/L
 64/132 SYR4 2012–2019
Fluoride
1900 µg/L 48%
of the EPA limit 4000 µg/L
 49/51 SYR4 2012–2019
Barium
231 µg/L 12%
of the EPA limit 2000 µg/L
 48/48 SYR4 2012–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 34/34 LCR 2025
Combined Radium (-226 And -228)
5.8 pCi/L 116%
of the EPA limit, in the worst sample — 5 pCi/L
 30/30 SYR4 2012–2019
Lithium
27.6 µg/L
No EPA limit set
 26/26 UCMR-5 2025
Gross Beta Particle Activity
13.1 pCi/L
No EPA limit set
 22/22 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
8.9 pCi/L 59%
of the EPA limit 15 pCi/L
 20/22 SYR4 2012–2019
Trichloroacetic Acid
4.3 µg/L
No EPA limit set
 17/120 SYR4 2015–2019
Combined Uranium
13.9 µg/L 46%
of the EPA limit 30 µg/L
 11/22 SYR4 2012–2019
Selenium
3 µg/L 6%
of the EPA limit 50 µg/L
 10/48 SYR4 2012–2019
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 4/48 SYR4 2012–2019
Di(2-ethylhexyl) Adipate
11 µg/L 2.8%
of the EPA limit 400 µg/L
 4/100 SYR4 2012–2019
Monobromoacetic Acid
1.2 µg/L
No EPA limit set
 4/120 SYR4 2015–2019
Chromium
2.6 µg/L 2.6%
of the EPA limit 100 µg/L
 1/48 SYR4 2012–2019
Di(2-ethylhexyl) Phthalate
4.6 µg/L 77%
of the EPA limit 6 µg/L
 1/99 SYR4 2012–2019
Nitrite
57 µg/L 5.7%
of the EPA limit 1000 µg/L
 1/134 SYR4 2012–2019
79 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ROCHE, JAMES
Phone
303-841-2058
Email
JROCHE@PWSD.ORG

Frequently asked questions about Parker Wsd

Is Parker Wsd tap water safe to drink?

EPA monitoring detected 32 contaminants in Parker 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 Parker Wsd's water?

EPA monitoring detected TTHM, Nitrate, Chloroform, Dibromochloromethane, Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Parker Wsd serve?

Parker Wsd reports serving 75,949 people in Colorado, per its EPA record.

Has Parker Wsd had any water quality violations?

The EPA has 465 violations on file for Parker Wsd, 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.