Siete Casas Joint Venture
EPA ID: AZ0410242 · 25 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Siete Casas Joint Venture (AZ0410242): 1 unresolved EPA violation on record. With 1 unresolved EPA violation, Siete Casas Joint Venture is currently out of full compliance - approximately 25 people in its service area.
Data: EPA SDWIS
Service Area Map
Coverage area for Siete Casas Joint Venture Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Siete Casas Joint Venture serves a community with a median household income of $71,812 and an estimated 33,332 residents across its service area. Approximately 49% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 39% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. 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 pumped from underground aquifers. 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
Detected Contaminants
How Siete Casas Joint Venture compares to EPA limits
What This Means For You
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 4 detections recorded. 2 exceed federal EPA limits (4 ppt for PFOA/PFOS). 1 exceeds state limits.
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 | Consumer Confidence Report Rule | Health-based | Unaddressed (current) |
| July 2, 2021 | Lead and Copper Rule | Non-health-based | Resolved |
| July 1, 2021 | Surface Water Treatment 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 |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
| Lead and Copper Rule | Treatment Failure | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | Yes |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.00028 mg/L | No | N/A |
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: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
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 the full compliance record 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
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Siete Casas Joint Venture (EPA ID: AZ0410242) - request the latest Consumer Confidence Report or ask about specific contaminants.