Water Quality in 85250 — Scottsdale, AZ
EPA data for SCOTTSDALE CITY OF
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 85250 in Scottsdale, Arizona is served by SCOTTSDALE CITY OF (EPA ID: AZ0407098). This system provides water to approximately 241,361 people from surface water sources.
There are 9 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| March 1, 2025 | Chlorite | Monitoring | Unresolved |
| March 1, 2025 | Chlorite | Monitoring | Resolved |
| September 1, 2024 | Chlorite | Monitoring | Unresolved |
| September 1, 2024 | Chlorite | Monitoring | Resolved |
| September 1, 2024 | Chlorite | Monitoring | Unresolved |
| September 1, 2024 | Chlorite | Monitoring | Resolved |
| August 1, 2024 | Chlorite | Monitoring | Unresolved |
| August 1, 2024 | Chlorite | Monitoring | Resolved |
| August 1, 2024 | Chlorite | Monitoring | Unresolved |
| August 1, 2024 | Chlorite | Monitoring | Resolved |
| July 1, 2024 | Chlorite | Monitoring | Resolved |
| July 1, 2024 | Chlorite | Monitoring | Unresolved |
| July 1, 2024 | Chlorite | Monitoring | Resolved |
| July 1, 2024 | Chlorite | Monitoring | Unresolved |
| July 1, 2024 | Chlorite | Monitoring | Resolved |
| April 1, 2024 | Revised Total Coliform Rule | Monitoring | Unresolved |
| April 1, 2024 | Revised Total Coliform Rule | Monitoring | Unresolved |
| April 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| April 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| July 1, 2023 | Chlorite | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Chlorite | Disinfection Byproducts | 20 | No |
| Revised Total Coliform Rule | Microbiological | 10 | No |
| E. coli | Microbiological | 2 | No |
| Barium | Inorganic | 2 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| SCOTTSDALE CITY OF | AZ0407098 | 241,361 | Surface water |
| SEDONA VENTURE WATER COMPANY | AZ0413108 | 480 | Groundwater |
| GW -BWC, INC.- NSWC | AZ0407179 | 319 | Groundwater |
| VENTURA RANCH WATER SYSTEM | AZ0413485 | 300 | Groundwater |
| OATMAN WATER COMPANY | AZ0408001 | 230 | Groundwater |
What You Can Do
- Review your annual Consumer Confidence Report (CCR) — Your utility publishes this each July
- Test your home’s water — Especially if you have older plumbing (pre-1986) that may contain lead
- Stay informed — Bookmark this page to check for updates on your water quality
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Arizona
- 85001 (Phoenix) — 248 violations
- 85117 (Apache Junction) — 263 violations
- 85122 (Casa Grande) — 52 violations
- 85123 (Arizona City) — 94 violations
- 85127 (Chandler Heights) — 6 violations
- 85128 (Coolidge) — 101 violations
- 85131 (Eloy) — 139 violations
- 85132 (Florence) — 109 violations
- 85135 (Hayden) — 91 violations
- 85137 (Kearny) — 82 violations
- 85138 (Maricopa) — 428 violations
- 85140 (San Tan Valley) — 90 violations
- 85141 (Picacho) — 88 violations
- 85142 (Queen Creek) — 70 violations
- 85145 (Red Rock) — 43 violations
- 85172 (Stanfield) — 92 violations
- 85173 (Superior) — 11 violations
- 85201 (Mesa) — 38 violations
- 85224 (Chandler) — 259 violations
- 85233 (Gilbert) — 364 violations
Nearby Water Quality Reports
- 85201 (Mesa) — 7 mi — 38 violations
- 85280 (Tempe) — 8 mi — 55 violations
- 85001 (Phoenix) — 11 mi — 248 violations
- 85268 (Fountain Hills) — 12 mi — 18 violations
- 85224 (Chandler) — 13 mi — 259 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for SCOTTSDALE CITY OF (AZ0407098) on EPA.gov.
Frequently Asked Questions
Is the tap water in 85250 safe to drink?
Based on EPA records, the water system serving ZIP code 85250 has only monitoring/reporting violations, which are procedural in nature. However, individual home conditions (old pipes, well water) can affect quality.
Where does 85250’s water come from?
The primary water source for this area is surface water. SCOTTSDALE CITY OF serves approximately 241,361 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 85250 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 85250. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 85250?
Radon zone data is not available for ZIP code 85250. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.