Siete Casas Joint Venture
EPA ID: AZ0410242 · 25 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Siete Casas Joint Venture (AZ0410242): 1 violation recorded with unresolved status in the SDWIS data used. EPA record snapshot: Siete Casas Joint Venture, 1 open violation, 25 people served.
Data: EPA SDWIS
Service Area Map
Coverage area for Siete Casas Joint Venture Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Siete Casas Joint Venture have a median household income of $71,812 and about 33,332 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 49% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 39% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Siete Casas Joint Venture's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 4 detections recorded. 2 detections are above the level of a federal PFAS MCL (4 ppt for PFOA and PFOS), with compliance required from 2029.
Comparable Water Systems
Similar-sized systems in Arizona
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Siete Casas Joint Venture (EPA ID: AZ0410242) is a community water system in Arizona that serves approximately 25 people from groundwater sources.
This system serves ZIP code 85741 in Tucson.
Violation History
Status breakdown for accepted records with record years 2021-2026: 2 resolved, 0 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| August 22, 2021 | Revised Total Coliform Rule | Health-based | Unaddressed (current) |
| July 2, 2021 | Public Notice | Non-health-based | Resolved |
| July 1, 2021 | Consumer Confidence Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Rule | Other (notice or report rule) | 1 | No |
| Public Notice | Other (notice or report rule) | 1 | No |
| Revised Total Coliform Rule | Treatment Technique | 1 | Yes |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0003 mg/L | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by AZ or modeled from parcel and building-footprint data.
- 85741 - Tucson
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Siete Casas Joint Venture (AZ0410242) on EPA.gov.
Frequently Asked Questions
Is Siete Casas Joint Venture water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current health-based noncompliance record for Siete Casas Joint Venture. Review the utility's current notices and EPA record. This system-level compliance history cannot determine conditions at a specific tap.
How many people does Siete Casas Joint Venture serve?
Siete Casas Joint Venture serves approximately 25 people across 1 ZIP code in Arizona.
Where does Siete Casas Joint Venture get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Siete Casas Joint Venture (AZ): 1 Health Violation. https://zipcheckup.com/water-system/az0410242/
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title = {{Siete Casas Joint Venture (AZ): 1 Health Violation}},
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url = {https://zipcheckup.com/water-system/az0410242/}
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What You Can Do
Test your water
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Check your specific ZIP code
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Contact your utility
Siete Casas Joint Venture (EPA ID: AZ0410242) - request the latest Consumer Confidence Report or ask about specific contaminants.