OHA Drinking Water Services
OR41
PWS ID: 00252 ---- DAYTON, CITY OF
GW/GWUDI Source Detail

Non-purchased Groundwater/GWUDI Sources:
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SRC-AA:  SPRING AREA A (LOWER SPRINGS)
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
Disinfection:  GWR 4-LOG VIRUS COMPLIANCE MON
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: Yes
Construction adequate?: Unknown   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 7/19/2010
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Complete

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 5/1/2011 - 2/29/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-
Outcome/Determination:  N/A
No historic GWUDI data were found.
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SRC-AB:  SPRING AREA B (UPPER SPRINGS)
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
Disinfection:  GWR 4-LOG VIRUS COMPLIANCE MON
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: Yes
Construction adequate?: Unknown   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 7/19/2010
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Complete

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 5/1/2011 - 2/29/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-		 0
-
-
Outcome/Determination:  N/A
No historic GWUDI data were found.
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SRC-AC:  MCDOUGAL WELL 1
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?: No - Seal Missing or Unknown   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 7/19/2010
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 1/1/2010 - 6/30/2011
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		2
1
0		 2
0
0		 1
0
0		 1
0
0		 1
0
0		 1
1
0		 0
-
-		 1
0
0		 2
0
0		 1
0
0		 1
1
0		 1
0
0		 14
3
0
Outcome/Determination:  Low Risk
No historic GWUDI data were found.
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SRC-AD:  MCDOUGAL WELL 2
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?: No - Open to More Than One Aquifer   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 7/19/2010
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed

Monthly Schedule (Closed): 1 sample(s) per month to be taken beginning 5/1/2011 - 5/31/2012
 JanFebMarAprMayJunJulAugSepOctNovDecTotal
# Samples
TC+
E. coli+ 		1
0
0		 1
0
0		 1
0
0		 1
0
0		 1
0
0		 1
0
0		 1
0
0		 0
-
-		 1
0
0		 1
0
0		 1
0
0		 1
0
0		 11
0
0
Outcome/Determination:  Low Risk
No historic GWUDI data were found.
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SRC-BA:  WELL #1
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  MIXED OXIDANTS, PRE ;  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: Moderate   Surface water within 500 feet: No
Construction adequate?: Yes   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 12/11/2012
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-BB:  WELL #3
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
Disinfection:  MIXED OXIDANTS, PRE ;  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: Moderate   Surface water within 500 feet: No
Construction adequate?: Yes   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: No   Data last updated: 3/2/2021
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-BC:  WELL #4
GW, Active, Permanent ---- Operating Period: Jan 1 - Dec 31
Disinfection:  MIXED OXIDANTS, PRE ;  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: Moderate   Surface water within 500 feet: No
Construction adequate?: Yes   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: No   Data last updated: 3/3/2021
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-BF:  WELL #2
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  MIXED OXIDANTS, PRE ;  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: No
Construction adequate?: No - Inappropriate Materials   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: No   Data last updated: 3/3/2021
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-BG:  WELL #5
GW, Active, Permanent ---- Operating Period Unknown
Disinfection:  MIXED OXIDANTS, PRE ;  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: No
Construction adequate?: No - Inappropriate Materials   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: No   Data last updated: 6/5/2025
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-BD:  FLOWER LN WELL
GW, Inactive, Emergency ---- Operating Period Unknown
Disinfection:  MIXED OXIDANTS, PRE ;  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: Moderate   Surface water within 500 feet: No
Construction adequate?: Yes   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Unknown   Data last updated: 7/19/2010
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-BE:  11TH ST. WELL (PALMER)
GW, Inactive, Emergency ---- Operating Period Unknown
Disinfection:  MIXED OXIDANTS, PRE ;  RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
Aquifer sensitivity: Moderate   Surface water within 500 feet: No
Construction adequate?: Yes   Surface water type: Unknown
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 7/19/2010
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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SRC-DA:  POST OFFICE WELL (FERRY ST.)
GW, Inactive (Disconnected), Other ---- Operating Period Unknown
Disinfection: None
Sensitivity Analysis Data
Aquifer sensitivity: High   Surface water within 500 feet: Yes
Construction adequate?: No - Seal Missing or Unknown   Surface water type: Stream
E. coli sources within 2-year time-of-travel: Yes   Data last updated: 7/19/2010
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
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