Northdale Sanitary District
EPA ID: SD4600514 · 1,075 people served · 2 ZIP codes
EPA data: Northdale Sanitary District — zero violations, five years, 1,075 served.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Northdale Sanitary District Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The Northdale Sanitary District serves a community with a median household income of $109,340 and an estimated 4,410 residents across its service area.
💧 Where Does Your Water Come From?
Northdale Sanitary District'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.
About 1% of homes in Lawrence County, South Dakota rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 65th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in South Dakota
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
NORTHDALE SANITARY DISTRICT (EPA ID: SD4600514) is a community water system in South Dakota that serves approximately 1,075 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Average Home Safety Score: C (63/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Northdale Sanitary District (SD4600514) on EPA.gov.
Frequently Asked Questions
Is Northdale Sanitary District water safe to drink?
Based on EPA records, Northdale Sanitary District has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Northdale Sanitary District serve?
Northdale Sanitary District serves approximately 1,075 people across 2 ZIP codes in South Dakota.
Where does Northdale Sanitary District get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Frequently Asked Questions
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
Northdale Sanitary District (EPA ID: SD4600514) — request the latest Consumer Confidence Report or ask about specific contaminants.