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Tap water quality report

Patterson Valley Wc

EPA monitoring tested this supplier for 108 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
20
detected
96
people served
443
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Ground water
Ownership
Private
Counties served
Otero

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.

443
health-based violations
532
violations on file
6
still open
ViolationTypeStatusPeriod
MCL Health-based Addressed 2026-04-01 → 2026-06-30
MCL Health-based Addressed 2026-04-01 → 2026-06-30
MCL Health-based Addressed 2026-04-01 → 2026-06-30
MCL Health-based Addressed 2026-04-01 → 2026-06-30
MCL Health-based Addressed 2026-04-01 → 2026-06-30
MCL Health-based Addressed 2026-04-01 → 2026-06-30
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31

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 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
Lead
0.00050 mg/L 3.3%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
Nitrate
330 µg/L 3.3%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Combined Radium (-226 And -228)
31.2 pCi/L 624%
of the EPA limit, in the worst sample — 5 pCi/L
 13/13 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
45 pCi/L 300%
of the EPA limit, in the worst sample — 15 pCi/L
 13/13 SYR4 2012–2019
Barium
10 µg/L 0.5%
of the EPA limit 2000 µg/L
 3/3 SYR4 2013–2017
Bromoform
16 µg/L
No EPA limit set
 3/3 SYR4 2012–2019
Fluoride
1100 µg/L 28%
of the EPA limit 4000 µg/L
 3/3 SYR4 2013–2017
TTHM
29 µg/L 36%
of the EPA limit 80 µg/L
 3/3 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
12.5 µg/L 21%
of the EPA limit 60 µg/L
 3/3 SYR4 2012–2019
Bromodichloromethane
3.5 µg/L
No EPA limit set
 2/3 SYR4 2012–2019
Chloroform
1.6 µg/L
No EPA limit set
 2/3 SYR4 2012–2019
Dibromoacetic Acid
5.23 µg/L
No EPA limit set
 2/2 SYR4 2016–2019
Dibromochloromethane
8.4 µg/L
No EPA limit set
 2/3 SYR4 2012–2019
Lithium
309 µg/L
No EPA limit set
 2/2 UCMR-5 2024
Dichloroacetic Acid
3.08 µg/L
No EPA limit set
 1/2 SYR4 2016–2019
Monochloroacetic Acid
3.16 µg/L
No EPA limit set
 1/2 SYR4 2016–2019
Nitrate-Nitrite
100 µg/L 1%
of the EPA limit 10000 µg/L
 1/1 SYR4 2012
Nitrite
20 µg/L 2%
of the EPA limit 1000 µg/L
 1/1 SYR4 2012
Selenium
0.8100 µg/L 1.6%
of the EPA limit 50 µg/L
 1/3 SYR4 2013–2017
Trichloroacetic Acid
1 µg/L
No EPA limit set
 1/2 SYR4 2016–2019
88 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PROCTOR, KELCIE
Phone
719-468-0038
Email
NDGVWATER@GMAIL.COM

Frequently asked questions about Patterson Valley Wc

Is Patterson Valley Wc tap water safe to drink?

EPA monitoring detected 20 contaminants in Patterson Valley Wc'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 Patterson Valley Wc's water?

EPA monitoring detected Lead, Nitrate, Combined Radium (-226 And -228), Gross Alpha, Excl. Radon And U, Barium, and others. The full list with the level and data source for each is above.

How many people does Patterson Valley Wc serve?

Patterson Valley Wc reports serving 96 people in Colorado, per its EPA record.

Has Patterson Valley Wc had any water quality violations?

The EPA has 532 violations on file for Patterson Valley Wc, of which 443 are health-based (a contaminant limit or required treatment was breached) and 6 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.