Stanwood, MI Water Safety: 95/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Water systems serving Stanwood hold a strong EPA compliance record — the city places among the better-performing areas in MI with few health-based violations on file.
How Stanwood Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Stanwood Water
- Average lead level: 0.002 mg/L.
- Homes built before 1986: 43% — older plumbing may contain lead solder.
- Estimated remediation: $1,800 per household.
- CDC health risk index: 14.59 — above typical levels.
Who Supplies Your Water in Stanwood
Federal drinking water records identify 1 system operating in Stanwood, MI. One of those systems serves the overwhelming majority of residential addresses, concentrating infrastructure management, rate authority, and EPA compliance reporting within a single organization.
Overview
We track water quality and home safety data for 1 ZIP code in Stanwood, Michigan, covering 1 community water system serving approximately 4,851 people.
No EPA violations recorded across any ZIP codes in Stanwood — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Stanwood: A (95/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Stanwood water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0020 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 49346 | A | Tullymore Clubhouse and Camelot Village | 50 |
All ZIP Codes in Stanwood
- 49346 [A]
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
Updated daily.
Health Outcomes in Stanwood
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Housing & Infrastructure in Stanwood
With 43% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Housing age is a practical proxy for plumbing risk because federal standards changed in 1986, when lead solder was banned from new residential construction, and again earlier — before 1970, lead pipes were themselves commonly installed. Stanwood's median build year of 1980 sits in the range where both pre- and post-1986 homes are well represented. The bar chart above reflects that mixed picture: the distribution captures pockets of older housing alongside more recent development, and those pockets carry real lead risk potential at the individual property level.
Most homes in Stanwood were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Stanwood Homeowners
In Stanwood, property wealth outpaces what documented remediation typically demands — the equity burden lands well within the low tier.
Remediation costs in Stanwood are relatively low compared to home values. The $1,200–$2,500 estimated range is a small fraction of median property value. Home values are 9% above the Michigan average.
Lead Exposure Risk for Children in Stanwood
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.
When older housing represents 43% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Stanwood address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Stanwood
The National Flood Insurance Program captures decades of claims at the local level, building a record of cumulative community flood exposure. For Stanwood, that record documents 5 claims and 100% of ZIP codes inside FEMA-designated flood zones. What makes those numbers relevant to water quality is the set of mechanisms flooding activates: heavy precipitation that floods treatment intake zones can introduce contaminants upstream of normal filtration; well casings in low-lying areas can be infiltrated by floodwaters carrying bacteria, sediment, and chemical residue; and distribution system pressure changes during flooding can create backflow conditions. These effects become more probable as flood frequency and magnitude increase — and the NFIP record indicates both are meaningful factors locally.
Stanwood has a moderate flood history with 5 FEMA claims averaging $40,443 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,800</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Stanwood, MI