WELLTON, AZ · Yuma County
WELLTON MOHAWK IRRIGATION Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of February 9, 2017. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Yuma County, AZ.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Arizona’s official records. Always confirm current status with Arizona before making decisions based on this information.
System facts
- System ID (PWSID)
- AZ0414390
- System type
- Community Water System
- Population served
- 57
- Service connections
- 18
- Ownership
- public/private mix
- Water source
- surface water (rivers, lakes, or reservoirs)
WELLTON MOHAWK IRRIGATION is one of 1,189 community water systems in Arizona in the 500 or fewer people size category, formerly serving 57 people from surface water.
EPA's federal records list this system as inactive in 2017; the record below is historical.
As of August 1, 2026, its federal record holds 40 entries between 1978 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.
Of the 40, 39 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, inorganic chemicals, and the Total Coliform Rules.
Violation history
Consumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
October 1, 2016 – February 9, 2017
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 1, 2014 – February 28, 2014
ResolvedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
August 1, 2008 – August 31, 2008
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2008 – December 31, 2008
ResolvedMonitoring and Reporting (DBP)
—Chlorine
January 1, 2007 – March 31, 2007
ResolvedMonitoring, Regular
—BHC-GAMMA
August 31, 1990 – August 30, 1993
ArchivedMonitoring, Regular
—2,4-D
August 31, 1990 – August 30, 1993
ArchivedMonitoring, Regular
—Toxaphene
August 31, 1990 – August 30, 1993
ArchivedMonitoring, Regular
—Methoxychlor
August 31, 1990 – August 30, 1993
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1987 – December 31, 1987
ArchivedMonitoring, Regular
—2,4,5-TP
September 1, 1987 – August 30, 1990
ArchivedMonitoring, Regular
—2,4-D
September 1, 1987 – August 30, 1990
ArchivedMonitoring, Regular
—Methoxychlor
September 1, 1987 – August 30, 1990
ArchivedMonitoring, Regular
—BHC-GAMMA
September 1, 1987 – August 30, 1990
ArchivedMonitoring, Regular
—Endrin
September 1, 1987 – August 30, 1990
ArchivedMonitoring, Regular
—Toxaphene
September 1, 1987 – August 30, 1990
ArchivedMonitoring, Regular
—BHC-GAMMA
July 1, 1987 – September 30, 1987
ArchivedMonitoring, Regular
—Endrin
July 1, 1987 – September 30, 1987
ArchivedMonitoring, Regular
—2,4,5-TP
July 1, 1987 – September 30, 1987
ArchivedMonitoring, Regular
—2,4-D
July 1, 1987 – September 30, 1987
ArchivedMonitoring, Regular
—Toxaphene
July 1, 1987 – September 30, 1987
ArchivedMonitoring, Regular
—Methoxychlor
July 1, 1987 – September 30, 1987
ArchivedMonitoring, Regular
—Barium
June 25, 1981 – June 24, 1982
ArchivedMonitoring, Regular
—Mercury
June 25, 1981 – June 24, 1982
ArchivedMonitoring, Regular
—Fluoride
June 25, 1981 – June 24, 1982
ArchivedMonitoring, Regular
—Nitrate
June 25, 1981 – June 24, 1982
ArchivedMonitoring, Regular
—Selenium
June 25, 1981 – June 24, 1982
ArchivedMonitoring, Regular
—Barium
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Mercury
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Fluoride
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Chromium
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Cadmium
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Arsenic
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Selenium
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—Nitrate
June 24, 1980 – June 23, 1981
ArchivedMonitoring, Regular
—2,4-D
June 24, 1978 – June 23, 1981
ArchivedMonitoring, Regular
—Toxaphene
June 24, 1978 – June 23, 1981
ArchivedMonitoring, Regular
—Methoxychlor
June 24, 1978 – June 23, 1981
ArchivedMonitoring, Regular
—BHC-GAMMA
June 24, 1978 – June 23, 1981
ArchivedMonitoring, Regular
—Endrin
June 24, 1978 – June 23, 1981
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2016 – February 9, 2017 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| February 1, 2014 – February 28, 2014 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 2008 – August 31, 2008 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2008 – December 31, 2008 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2007 – March 31, 2007 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| August 31, 1990 – August 30, 1993 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| August 31, 1990 – August 30, 1993 | Monitoring, Regular | 2,4-D | — | Archived |
| August 31, 1990 – August 30, 1993 | Monitoring, Regular | Toxaphene | — | Archived |
| August 31, 1990 – August 30, 1993 | Monitoring, Regular | Methoxychlor | — | Archived |
| October 1, 1987 – December 31, 1987 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| September 1, 1987 – August 30, 1990 | Monitoring, Regular | 2,4,5-TP | — | Archived |
| September 1, 1987 – August 30, 1990 | Monitoring, Regular | 2,4-D | — | Archived |
| September 1, 1987 – August 30, 1990 | Monitoring, Regular | Methoxychlor | — | Archived |
| September 1, 1987 – August 30, 1990 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| September 1, 1987 – August 30, 1990 | Monitoring, Regular | Endrin | — | Archived |
| September 1, 1987 – August 30, 1990 | Monitoring, Regular | Toxaphene | — | Archived |
| July 1, 1987 – September 30, 1987 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| July 1, 1987 – September 30, 1987 | Monitoring, Regular | Endrin | — | Archived |
| July 1, 1987 – September 30, 1987 | Monitoring, Regular | 2,4,5-TP | — | Archived |
| July 1, 1987 – September 30, 1987 | Monitoring, Regular | 2,4-D | — | Archived |
| July 1, 1987 – September 30, 1987 | Monitoring, Regular | Toxaphene | — | Archived |
| July 1, 1987 – September 30, 1987 | Monitoring, Regular | Methoxychlor | — | Archived |
| June 25, 1981 – June 24, 1982 | Monitoring, Regular | Barium | — | Archived |
| June 25, 1981 – June 24, 1982 | Monitoring, Regular | Mercury | — | Archived |
| June 25, 1981 – June 24, 1982 | Monitoring, Regular | Fluoride | — | Archived |
| June 25, 1981 – June 24, 1982 | Monitoring, Regular | Nitrate | — | Archived |
| June 25, 1981 – June 24, 1982 | Monitoring, Regular | Selenium | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Barium | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Mercury | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Fluoride | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Chromium | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Cadmium | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Arsenic | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Selenium | — | Archived |
| June 24, 1980 – June 23, 1981 | Monitoring, Regular | Nitrate | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | 2,4-D | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | Toxaphene | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | Methoxychlor | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| June 24, 1978 – June 23, 1981 | Monitoring, Regular | Endrin | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- May 22, 2017State Violation/Reminder Notice36 linked violations
- May 22, 2017State Violation/Reminder Notice46 linked violations
- November 6, 2012State Compliance achieved27 linked violations
- February 26, 2010State Violation/Reminder Notice8 linked violations
- June 26, 2007State Violation/Reminder Notice14 linked violations
Last known contact on file (system is inactive)
WELLTON MOHAWK IRRIGATION DIST
928-785-3351
WELLTON, AZ 85356