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Tap water quality report

Rimrock West Imprvmnt Dist

EPA monitoring tested this supplier for 70 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

70
contaminants tested
10
detected
150
people served
0
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Ground water
Ownership
Local government
Counties served
Deschutes

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
290
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2020-07-01
MR Monitoring Resolved 2018-08-26
MR Monitoring Resolved 2005-10-01 → 2005-10-31
MR Monitoring Resolved 2005-09-01 → 2005-09-30
MR Monitoring Resolved 2005-01-01
MR Monitoring Resolved 2005-01-01
MR Monitoring Resolved 2004-01-01
MR Monitoring Resolved 2004-01-01
Other Monitoring Resolved 2003-10-19
MR Monitoring Resolved 2003-08-01 → 2003-08-31

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
Nitrate
2507 µg/L 25%
of the EPA limit 10000 µg/L
worst single sample: 2520 µg/L
34/34 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Copper
139 µg/L 11%
of the EPA limit 1300 µg/L
worst single sample: 168 µg/L
11/15 SYR4 2012–2018
Combined Uranium
2 µg/L 6.7%
of the EPA limit 30 µg/L
 4/4 SYR4 2012–2018
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
 3/4 SYR4 2012–2018
Barium
8.9 µg/L 0.4%
of the EPA limit 2000 µg/L
worst single sample: 9 µg/L
2/2 SYR4 2015–2018
Fluoride
187.5 µg/L 4.7%
of the EPA limit 4000 µg/L
worst single sample: 190 µg/L
2/2 SYR4 2015–2018
Nitrate-Nitrite
2491 µg/L 25%
of the EPA limit 10000 µg/L
worst single sample: 2520 µg/L
2/2 SYR4 2015–2018
Gross Alpha, Excl. Radon And U
6.34 pCi/L 42%
of the EPA limit 15 pCi/L
 1/3 SYR4 2012–2018
Lead
4 µg/L 27%
of the EPA limit 15 µg/L
 1/15 SYR4 2012–2018
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
RIMROCK WEST IMPRVMNT DIST
Phone
503-318-7699
Email
[email protected]

Frequently asked questions about Rimrock West Imprvmnt Dist

Is Rimrock West Imprvmnt Dist tap water safe to drink?

EPA monitoring detected 10 contaminants in Rimrock West Imprvmnt Dist'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 Rimrock West Imprvmnt Dist's water?

EPA monitoring detected Nitrate, Lead, Copper, Combined Uranium, Arsenic, and others. The full list with the level and data source for each is above.

How many people does Rimrock West Imprvmnt Dist serve?

Rimrock West Imprvmnt Dist reports serving 150 people in Oregon, per its EPA record.

Has Rimrock West Imprvmnt Dist had any water quality violations?

The EPA has 290 violations on file for Rimrock West Imprvmnt Dist, 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.