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Tap water quality report

Twin Cedars Mhp

EPA monitoring tested this supplier for 70 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

70
contaminants tested
5
detected
200
people served
0
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Ground water
Ownership
Private
Counties served
Linn

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
223
violations on file
1
still open
ViolationTypeStatusPeriod
MR Monitoring Unaddressed 2025-10-01
Other Monitoring Resolved 2023-10-01
MON Monitoring Resolved 2023-10-01 → 2023-10-31
MON Monitoring Resolved 2023-08-01 → 2023-08-31
Other Monitoring Resolved 2023-07-01
MON Monitoring Resolved 2023-05-01 → 2023-05-31
MON Monitoring Resolved 2022-04-01 → 2022-04-30
MON Monitoring Resolved 2022-03-01 → 2022-03-31
MON Monitoring Resolved 2022-02-01 → 2022-02-28
MON Monitoring Resolved 2022-01-01 → 2022-01-31

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
445 µg/L 4.5%
of the EPA limit 10000 µg/L
 12/16 SYR4 2012–2019
Lead
0.00056 mg/L 3.7%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2025
Lead
17.41 µg/L 116%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 18.4 µg/L
7/20 SYR4 2012–2019
Copper
268.15 µg/L 21%
of the EPA limit 1300 µg/L
worst single sample: 270 µg/L
2/20 SYR4 2012–2019
Arsenic
2.37 µg/L 24%
of the EPA limit 10 µg/L
 1/2 SYR4 2012–2016
65 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-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TWIN CEDARS MHP
Phone
541-405-4232
Email
[email protected]

Frequently asked questions about Twin Cedars Mhp

Is Twin Cedars Mhp tap water safe to drink?

EPA monitoring detected 5 contaminants in Twin Cedars 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 Twin Cedars Mhp's water?

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

How many people does Twin Cedars Mhp serve?

Twin Cedars Mhp reports serving 200 people in Oregon, per its EPA record.

Has Twin Cedars Mhp had any water quality violations?

The EPA has 223 violations on file for Twin Cedars Mhp, of which 0 are health-based (a contaminant limit or required treatment was breached) and 1 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.