OHA Drinking Water Services
PWS ID:
06118 ---- COLUMBIA HILLS HOA
GW/GWUDI Source Detail
Non-purchased Groundwater/GWUDI Sources:
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SRC-AA: WELL #1
GW, Active, Seasonal ---- Operating Period: Jan 1 - Dec 31
Disinfection: HYPOCHLORINATION, 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: |
1/24/2013 |
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
SRC-AG: WELL #11
GW, Active, Permanent ---- Operating Period Unknown
Disinfection: HYPOCHLORINATION, PRE ; RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
| Aquifer sensitivity: |
Moderate |
|
Surface water within 500 feet: |
Yes |
| Construction adequate?: |
Yes |
|
Surface water type: |
Unknown |
| E. coli sources within 2-year time-of-travel: |
No |
|
Data last updated: |
7/19/2023 |
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
SRC-AH: WELL #14
GW, Active, Permanent ---- Operating Period Unknown
Disinfection: HYPOCHLORINATION, PRE ; RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
| Aquifer sensitivity: |
Moderate |
|
Surface water within 500 feet: |
Yes |
| Construction adequate?: |
Yes |
|
Surface water type: |
Stream |
| E. coli sources within 2-year time-of-travel: |
Yes |
|
Data last updated: |
7/17/2023 |
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
SRC-AB: WELL #7
GW, Inactive, Other ---- Operating Period: Jan 1 - Dec 31
Disinfection: HYPOCHLORINATION, 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: |
1/24/2013 |
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
SRC-AC: WELL #4
GW, Inactive, Emergency ---- Operating Period Unknown
Disinfection: HYPOCHLORINATION, PRE ; RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
| Aquifer sensitivity: |
High |
|
Surface water within 500 feet: |
No |
| Construction adequate?: |
No - Inappropriate Depth |
|
Surface water type: |
Unknown |
| E. coli sources within 2-year time-of-travel: |
Yes |
|
Data last updated: |
1/24/2013 |
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Completed
Monthly Schedule (Closed):
1 sample(s) per month to be taken
beginning 10/1/2012
- 9/30/2013
| | Jan | Mar | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
# Samples
TC+
E. coli+
|
1
0
0 |
1
0
0 |
1
0
0 |
0
-
- |
1
0
0 |
1
0
0 |
1
0
0 |
1
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.
SRC-AD: WELL #2
GW, Inactive, Other ---- Operating Period: Jan 1 - Dec 31
Disinfection: HYPOCHLORINATION, 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: |
3/18/2015 |
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? No
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
SRC-AE: WELL #8
GW, Inactive, Emergency ---- Operating Period Unknown
Disinfection: HYPOCHLORINATION, PRE ; RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
| Aquifer sensitivity: |
Unknown |
|
Surface water within 500 feet: |
Unknown |
| Construction adequate?: |
Unknown |
|
Surface water type: |
Unknown |
| E. coli sources within 2-year time-of-travel: |
Unknown |
|
Data last updated: |
|
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Unknown
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
SRC-AF: WELL #6
GW, Inactive, Seasonal ---- Operating Period Unknown
Disinfection: HYPOCHLORINATION, PRE ; RESID. MAINT. HYPOCHLORINATION
Sensitivity Analysis Data
| Aquifer sensitivity: |
Unknown |
|
Surface water within 500 feet: |
Unknown |
| Construction adequate?: |
Unknown |
|
Surface water type: |
Unknown |
| E. coli sources within 2-year time-of-travel: |
Unknown |
|
Data last updated: |
|
Monthly Assessment Monitoring Data
Monthly Assessment Monitoring Required? Unknown
No monthly assessment monitoring schedule found.
No historic GWUDI data were found.
SRC-CA: WELL #8F1 (NOW SRC-AA IN 06211)
GW, Inactive (Disconnected), Other ---- Operating Period Unknown
Disinfection: None
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: |
1/24/2013 |
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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More information for this water system:
SDWIS ID 4836
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