Public water system record
Town of Gilbert
Serves Gilbert, Maricopa County, AZ · 247,600 people served
Federal records show 3 health-based violations and 216 monitoring/reporting issues for Town of Gilbert in the last ten years. The most serious issue in this window was a resolved Long Term 2 Enhanced Surface Water Treatment Rule violation.
System profile
Source water
Surface water
ZIP
85234
EPA system ID
AZ0407092
- Health-based violations, last 10 years
- 3
- Resolved
- 3
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 216
Key facts
- Town of Gilbert draws water from 20 wells and 2 surface water intakes.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2017.
- Record on file since 1986, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 9,578 unknown out of 86,557 service lines.
Check whether Town of Gilbert 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 |
|---|---|---|---|---|
|
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jul 1, 2017 | 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 | Apr 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2025 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
RPT
|
Jul 1, 2025 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2025 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2024 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Jul 1, 2024 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Styrene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Ethylbenzene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Toluene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Benzene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
CHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Tetrachloroethylene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Trichloroethylene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,2-Dichloropropane
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Carbon tetrachloride
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,2-Dichloroethane
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,1-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Vinyl chloride
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
p-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
o-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
DICHLOROMETHANE
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Xylenes, Total
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Styrene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Feb 1, 2022 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Feb 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2021 | Resolved |
|
CARBON, TOTAL
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Diquat
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Endothall
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Picloram
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
2,4-D
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Simazine
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Selenium
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Nickel
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Mercury
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
CYANIDE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Cadmium
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Barium
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Selenium
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Nickel
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Mercury
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
CYANIDE
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Cadmium
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Barium
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Bromate
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Oct 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Dalapon
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jul 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Arsenic
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Bromate
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Endrin
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Diquat
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Endothall
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Simazine
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
LASSO
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Radium-228
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Radium-226
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
May 1, 2018 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
May 1, 2018 | Resolved |
|
Revised Total Coliform Rule
RPT
|
May 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2017 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
Full record since 1986
EPA's records for Town of Gilbert go back to 1986. Before October 19, 2016 they list 2 health-based violations (1 resolved, 1 archived by EPA without a recorded fix) and 664 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 1 | 3 |
| 1990s | 0 | 41 |
| 2000s | 1 | 454 |
| 2010 to October 18, 2016 | 0 | 166 |
| October 19, 2016 to 2019 | 3 | 38 |
| 2020s | 0 | 178 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began January 2001, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 2001 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 1, 1989 | Archived |
What the violations mean
Total Trihalomethanes (TTHMs)
2 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Long Term 2 Enhanced Surface Water Treatment Rule
1 incidentThe system failed required surface water treatment or filtration standards
Untreated or inadequately treated surface water can contain bacteria and viruses
Where the water comes from
Town of Gilbert draws water from 20 wells and 2 surface water intakes. 1 other public water system has an emergency connection to Town of Gilbert.
Annual water quality report
Town of Gilbert 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