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Tap water quality report

Cobblestone Mhp

EPA monitoring tested this supplier for 72 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

72
contaminants tested
9
detected
100
people served
11
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
SWP
Ownership
Private
Counties served
Jackson

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.

11
health-based violations
74
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2014-04-01 → 2014-04-30
MCL Health-based Resolved 2014-04-01 → 2014-04-30
MCL Health-based Resolved 2014-04-01 → 2014-04-30
TT Health-based Resolved 2000-01-01
TT Health-based Resolved 2000-01-01
TT Health-based Resolved 2000-01-01
MCL Health-based Resolved 1997-12-01 → 1997-12-31
TT Health-based Resolved 1996-02-01
TT Health-based Resolved 1996-02-01
TT Health-based Resolved 1996-01-01

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
Copper
117.5 µg/L 9%
of the EPA limit 1300 µg/L
worst single sample: 148 µg/L
30/30 SYR4 2013–2018
Lead
9.374 µg/L 62%
of the EPA limit 15 µg/L
worst single sample: 10.9 µg/L
30/30 SYR4 2013–2018
Lead
0.0015 mg/L 10%
of the EPA limit 0.0150 mg/L
 28/28 LCR 2025
Fluoride
4764 µg/L 119%
of the EPA limit, at the 95th percentile of samples — 4000 µg/L
worst single sample: 4970 µg/L
5/5 SYR4 2018–2019
Nitrate
783 µg/L 7.8%
of the EPA limit 10000 µg/L
 4/16 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
6.6 pCi/L 44%
of the EPA limit 15 pCi/L
 1/1 SYR4 2016
Selenium
0.8090 µg/L 1.6%
of the EPA limit 50 µg/L
 1/1 SYR4 2019
TTHM
36.6 µg/L 46%
of the EPA limit 80 µg/L
 1/3 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
10.7 µg/L 18%
of the EPA limit 60 µg/L
 1/3 SYR4 2012–2019
63 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, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
COBBLESTONE MHP
Phone
541-227-9744
Email
[email protected]

Frequently asked questions about Cobblestone Mhp

Is Cobblestone Mhp tap water safe to drink?

EPA monitoring detected 9 contaminants in Cobblestone Mhp'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 Cobblestone Mhp's water?

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

How many people does Cobblestone Mhp serve?

Cobblestone Mhp reports serving 100 people in Oregon, per its EPA record.

Has Cobblestone Mhp had any water quality violations?

The EPA has 74 violations on file for Cobblestone Mhp, of which 11 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.