Public water system record
Apache Junction Water District
Serves Apache Junction, Pinal County, AZ · 15,610 people served
Federal records show 5 health-based violations and 152 monitoring/reporting issues for Apache Junction Water District in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.
System profile
Source water
Surface water
ZIP
85119
EPA system ID
AZ0411039
- Health-based violations, last 10 years
- 5
- Resolved
- 5
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 152
Key facts
- Apache Junction Water District draws water from 2 wells and 1 surface water intake.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2018.
- Record on file since 1998, with 3 health-based violations before October 19, 2016.
Check whether Apache Junction Water District serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Apr 1, 2025 | Resolved | No |
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Jan 1, 2019 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Oct 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jul 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Chlorite
Monitoring and reporting
|
Sep 1, 2025 | Resolved |
|
Chlorite
Monitoring and reporting
|
Sep 1, 2025 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Sep 1, 2025 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Sep 1, 2025 | Resolved |
|
Chlorite
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2025 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Sep 1, 2024 | Resolved |
|
Chlorite
Monitoring and reporting
|
Sep 1, 2024 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Jun 1, 2024 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Jun 1, 2024 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
May 1, 2024 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2023 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2023 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Sep 1, 2023 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Aug 1, 2023 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Chlorite
Monitoring and reporting
|
Dec 1, 2022 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
2,4-D
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
LASSO
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Picloram
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Simazine
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Endothall
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Diquat
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Endrin
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
2,4-D
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
LASSO
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Picloram
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Simazine
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Endothall
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Diquat
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Endrin
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Selenium
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Nickel
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Mercury
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
CYANIDE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Cadmium
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Barium
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Chlorite
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Chlorite
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
Chlorite
Monitoring and reporting
|
Aug 1, 2019 | Resolved |
|
Chlorite
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Mar 13, 2019 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Styrene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Toluene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Benzene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2016 | Resolved |
|
E. coli
Monitoring and reporting
|
Nov 1, 2016 | Resolved |
Full record since 1998
EPA's records for Apache Junction Water District go back to 1998. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 125 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 5 |
| 2000s | 2 | 48 |
| 2010 to October 18, 2016 | 1 | 72 |
| October 19, 2016 to 2019 | 3 | 56 |
| 2020s | 2 | 96 |
Most recent health-based violation before October 19, 2016: Total Coliform, began March 2015, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2000 | Resolved |
What the violations mean
Total Trihalomethanes (TTHMs)
4 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Apache Junction Water District draws water from 2 wells and 1 surface water intake. It also buys water from City of Mesa.
Buys water from
- City of Mesa Mesa, AZ
Annual water quality report
Apache Junction Water District must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Arizona.
Certified drinking water labs by state EPA guidance for private wells