OHA Drinking Water Services
OR41
PWS ID: 05384 ---- SHANIKO WATER SYSTEM
GW/GWUDI Source Detail

Non-purchased Groundwater/GWUDI Sources:
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SRC-AA:  SPRING #4
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
Disinfection:  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: Yes
Construction adequate?: Unknown   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 12/7/2023
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Unknown

Monthly Schedule (Open): 1 sample(s) per month to be taken beginning 2/1/2026 -
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		0
-
-		 1
1
0		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 1
1
0
No historic GWUDI data were found.
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SRC-AB:  SPRING #5
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
Disinfection:  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: Yes
Construction adequate?: Unknown   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 12/7/2023
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Unknown

Monthly Schedule (Open): 1 sample(s) per month to be taken beginning 2/1/2026 -
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		0
-
-		 1
1
0		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 1
1
0
No historic GWUDI data were found.
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