OHA Drinking Water Services
OR41
PWS ID: 95706 ---- NPS OREGON CAVES NATIONAL MONUMENT O&M
Single Chemical Schedule

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Facility
ID
Facility Name Analyte
Code
Analyte Sampling
Interval
Monitoring
Period
Start
Monitoring
Period
Due Date
Days
Until
Due
Samples
Required
Samples
Received
Last
Sample
Date
Seasonal Sampling
Period
EP-A EP FOR UNNAMED SPRINGS 2816 HFPO-DA notes Quarterly4/1/2026 - 6/30/2026 82 1 0
EP-A EP FOR UNNAMED SPRINGS 2801 PERFLUOROBUTANE SULFONIC ACID (PFBS) notes Quarterly4/1/2026 - 6/30/2026 82 1 0
EP-A EP FOR UNNAMED SPRINGS 2805 PERFLUOROCTANE SULFONIC ACID (PFOS) notes Quarterly4/1/2026 - 6/30/2026 82 1 0
EP-A EP FOR UNNAMED SPRINGS 2806 PERFLUOROCTANOIC ACID (PFOA) notes Quarterly4/1/2026 - 6/30/2026 82 1 0
EP-A EP FOR UNNAMED SPRINGS 2803 PERFLUOROHEXANE SULFONIC ACID (PFHxS) notes Quarterly4/1/2026 - 6/30/2026 82 1 0
EP-A EP FOR UNNAMED SPRINGS 2804 PERFLUORONONANOIC ACID (PFNA) notes Quarterly4/1/2026 - 6/30/2026 82 1 0