MT TERRACE MHP EPA Drinking Water Compliance Record

TapScore summarizes EPA Safe Drinking Water Information System records for public water system OR4105364. It does not test household tap water or determine whether water is currently safe to drink.

C

Some recent records

TapScore compliance-history grade

20 EPA violation records from July 1, 2021 through June 30, 2026

System details

PWSID
OR4105364
Population served
60
Water source
Ground Water
Owner type
Private
State
Oregon
EPA region
10
All historical records
311
Not marked resolved
5

How to read this grade

Grade C means “Some recent records” under TapScore's published method. It is a comparison of recent EPA compliance records, not an EPA grade, laboratory result, health recommendation, or guarantee of present water quality.

EPA contaminant categories in violation records

EPA categoryClassificationRecords
Coliform (TCR)Health-based record76
ArsenicHealth-based record19
Revised Total Coliform RuleMonitoring/reporting record15
NitrateMonitoring/reporting record11
Gross AlphaMonitoring/reporting record9
Radium-226Monitoring/reporting record8
Lead and Copper RuleHealth-based record7
UraniumMonitoring/reporting record7
COLIPHAGEMonitoring/reporting record7
Consumer Confidence RuleMonitoring/reporting record4
Public NoticeMonitoring/reporting record4
Vinyl ChlorideMonitoring/reporting record3
Xylenes, TotalMonitoring/reporting record3
Tetrachloroethylene (PCE)Monitoring/reporting record3
Vinyl chlorideMonitoring/reporting record3
trans-1,2-DichloroethyleneMonitoring/reporting record3
1,2-DichloroethaneMonitoring/reporting record3
ChloramineMonitoring/reporting record3
CHLOROBENZENEMonitoring/reporting record3
BenzeneMonitoring/reporting record3

Showing the 20 categories with the most records out of 76 categories in this system's history.

These are compliance records associated with an EPA contaminant code, not current tap-water test results or proof that a substance is presently detected.

Violation history by year

2025
4
2024
3
2023
2
2022
8
2021
6
2020
2
2019
7
2018
6
2017
8
2016
3

Historical counts may include resolved records. For current notices and local sampling results, check the utility's latest Consumer Confidence Report and your state drinking-water agency.

Reported service area

Cities served

ZIP codes served

County: Coos