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Tap water quality report

Garfield Co Rwd # 4

EPA monitoring tested this supplier for 14 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
10
detected
334
people served
1
health-based violations
Oklahoma rankingsLead in OklahomaPFAS in Oklahoma
Water source
GWP
Ownership
Local government
Counties served
Garfield

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.

1
health-based violations
29
violations on file
4
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2024-10-17
Other Monitoring Unaddressed 2025-07-01
RPT Monitoring Unaddressed 2024-10-17
Other Monitoring Unaddressed 2024-07-01
Other Monitoring Resolved 2023-10-02
Other Monitoring Resolved 2023-10-02
MON Monitoring Resolved 2022-12-01 → 2022-12-31
MON Monitoring Resolved 2022-12-01 → 2022-12-31
MON Monitoring Resolved 2022-12-01 → 2022-12-31
MON Monitoring Resolved 2022-11-01 → 2022-11-30

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
Copper
185 µg/L 14%
of the EPA limit 1300 µg/L
 33/33 SYR4 2015–2018
TTHM
34.5 µg/L 43%
of the EPA limit 80 µg/L
 13/13 SYR4 2013–2019
Bromoform
10.4 µg/L
No EPA limit set
 10/10 SYR4 2013–2019
Dibromoacetic Acid
5.2 µg/L
No EPA limit set
 10/10 SYR4 2013–2019
Dibromochloromethane
13.5 µg/L
No EPA limit set
 10/10 SYR4 2013–2019
Bromodichloromethane
9.9 µg/L
No EPA limit set
 8/10 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2024
Total Haloacetic Acids (HAA5)
6.7 µg/L 11%
of the EPA limit 60 µg/L
 4/13 SYR4 2013–2019
Chloroform
4.1 µg/L
No EPA limit set
 2/10 SYR4 2013–2019
Dichloroacetic Acid
2.3 µg/L
No EPA limit set
 2/10 SYR4 2013–2019
4 contaminants tested, none detected
LeadMonobromoacetic AcidMonochloroacetic AcidTrichloroacetic Acid

Utility contact

Contact
GARFIELD COUNTY RWD # 4
Email
gcrwd4@gmail.com

Frequently asked questions about Garfield Co Rwd # 4

Is Garfield Co Rwd # 4 tap water safe to drink?

EPA monitoring detected 10 contaminants in Garfield Co Rwd # 4'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 Garfield Co Rwd # 4's water?

EPA monitoring detected Copper, TTHM, Bromoform, Dibromoacetic Acid, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Garfield Co Rwd # 4 serve?

Garfield Co Rwd # 4 reports serving 334 people in Oklahoma, per its EPA record.

Has Garfield Co Rwd # 4 had any water quality violations?

The EPA has 29 violations on file for Garfield Co Rwd # 4, of which 1 is health-based (a contaminant limit or required treatment was breached) and 4 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.