TOWN & COUNTRY - PRESTON
Arizona — Community Water System — PWSID: AZ0412311
System Information
| PWSID | AZ0412311 |
| System Name | TOWN & COUNTRY - PRESTON |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Oct 5, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | Arizona |
| City | NOGALES |
| ZIP Code | 85628 |
| Address | — |
| Organization | AGUILAR, ALBERTO |
| Phone | 520-281-1988 |
Population & Service
| Population Served | 430 |
| Service Connections | 90 |
Drinking Water Violations (254)
This water system has 254 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 27, 2025 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 31, 2025 | Public Notice Rule and Revised PN Rule |
| Jun 27, 2025 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 31, 2025 | Public Notice Rule and Revised PN Rule |
| Apr 14, 2025 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | May 13, 2025 | Ground Water Rule |
| Apr 14, 2025 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | May 13, 2025 | Ground Water Rule |
| Apr 14, 2025 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | May 13, 2025 | Ground Water Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 22, 2025 | Lead and Copper Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 22, 2025 | Lead and Copper Rule |
| Dec 20, 2024 | — | Public Notice | Other | No | No | — | — | — | Unaddressed | — | Public Notice Rule and Revised PN Rule |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Jan 28, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Feb 16, 2024 | Public Notice Rule and Revised PN Rule |
| Jan 28, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Feb 16, 2024 | Public Notice Rule and Revised PN Rule |
| Jan 28, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Feb 16, 2024 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2024 | Lead and Copper Rule |
| Jan 1, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2024 | Lead and Copper Rule |
| Oct 2, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Feb 16, 2024 | Consumer Confidence Rule |
| Oct 2, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Feb 16, 2024 | Consumer Confidence Rule |
| Apr 1, 2023 | Jun 30, 2023 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2023 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2023 | Jun 30, 2023 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2023 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Feb 11, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jan 18, 2022 | Public Notice Rule and Revised PN Rule |
| Feb 11, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jan 18, 2022 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 30, 2024 | Lead and Copper Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 30, 2024 | Lead and Copper Rule |
| Dec 1, 2022 | — | E. COLI | MR | No | No | — | — | — | Unaddressed | — | Ground Water Rule |
| Dec 1, 2022 | — | E. COLI | MR | No | No | — | — | — | Unaddressed | — | Ground Water Rule |
| Dec 1, 2022 | — | E. COLI | MR | No | No | — | — | — | Unaddressed | — | Ground Water Rule |
| Oct 2, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Feb 16, 2024 | Consumer Confidence Rule |
| Oct 2, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Feb 16, 2024 | Consumer Confidence Rule |
| Oct 2, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 8, 2021 | Consumer Confidence Rule |
| Oct 2, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 8, 2021 | Consumer Confidence Rule |
| Oct 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2024 | Lead and Copper Rule |
| Oct 1, 2021 | Dec 31, 2021 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2021 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2024 | Lead and Copper Rule |
| Oct 1, 2021 | Dec 31, 2021 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2021 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2024 | Lead and Copper Rule |
| Apr 1, 2021 | Jun 30, 2021 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2021 | Nitrate Rule |
| Apr 1, 2021 | Jun 30, 2021 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2021 | Nitrate Rule |
| Jan 1, 2021 | Mar 31, 2021 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 2021 | Nitrate Rule |
| Jan 1, 2021 | Mar 31, 2021 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2021 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 27, 2021 | Lead and Copper Rule |
| Jan 1, 2021 | Mar 31, 2021 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2021 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2021 | Mar 31, 2021 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 2021 | Nitrate Rule |
| Jan 1, 2021 | Mar 31, 2021 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Mar 31, 2021 | Nitrate Rule |
| Jul 1, 2020 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 7, 2020 | Consumer Confidence Rule |
| Jul 1, 2020 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 7, 2020 | Consumer Confidence Rule |
| Feb 17, 2020 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 7, 2020 | Public Notice Rule and Revised PN Rule |
| Feb 17, 2020 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 7, 2020 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2020 | Mar 31, 2020 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2020 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.