OHA Drinking Water Services
OR41
PWS ID: 95706 ---- NPS OREGON CAVES NATIONAL MONUMENT O&M
Lead & Copper

More Information
Summary Results
Detailed Results
Corrosion Control
Service Lines
90th Percentile Summary Results

Sample Dates Date
Received
Sample
Count
Frequency Lead
(mg/L)
Copper
(mg/L)
Consumer
Notice Date
3/3/2026  3/6/2026 5 6 months 0 0.237
12/2/2025  12/10/2025 5 6 months 0 0.022
6/17/2025  7/9/2025 5 6 months 0 0.132
7/30/2024  9/10/2024 5 6 months 0 0.157
1/11/2024  2/8/2024 5 6 months 0 0.326