Water systems across Mansfield produce average compliance results for SD overall - pockets with documented violations exist, and the variation between areas makes checking the specific system serving a given address the most useful step for residents here.

Data: EPA SDWIS

Overview

We track home safety data for 1 ZIP code in Mansfield, South Dakota (population ~338), covering 2 community water systems serving approximately 26,423 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

Average Home Safety Score for Mansfield: C (67/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor	What It Measures
Water Quality	EPA violations and compliance history
PFAS MCL Screen	UCMR 5 testing against the covered federal MCLs
Radon Risk	EPA radon zone classification
Annual AQI	EPA AirData county-year median with at least 90 observed days

Water Sources

Mansfield water systems draw from: Groundwater, Surface water.

Lead & Copper

• Average lead level (90th percentile): 0.0020 mg/L (EPA action level: 0.015 mg/L)
• 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Areas with No Violations

All ZIP Codes in Mansfield

• 57460 [C]

Data Sources

• Water quality: EPA Safe Drinking Water Information System (SDWIS)
• Lead/copper: EPA Lead and Copper Rule sampling data
• Radon: EPA Map of Radon Zones

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Housing Age Profile

Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1964 places Mansfield's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era - and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.

1964

Median Year Built

69%

Pre-1986 (Lead Paint Risk)

46%

Pre-1970 (Lead Pipes Risk)

Pre-1970 (46%) 1970–1986 (23%) Post-1986 (31%)

Over half of homes in Mansfield were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Mansfield: Remediation Cost in Perspective

In Mansfield, property values comfortably outpace what documented remediation typically costs - the equity share is proportionally low.

Median Home Value

$271,900

Est. Remediation

$1,200

Remediation as % of home value 0.4%

Remediation costs in Mansfield are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 56% above the South Dakota average.

Protecting Children from Lead in Mansfield

69%

Homes Built Before 1986

0.002

mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Wherever 69% of local housing was built before solder rules changed - as is the case in Mansfield - a faucet-level sample closes the gap that aggregate utility data cannot.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.