ZipCheckup grade for 57018: C.
A mixed picture - some signals here are worth your attention.
Your top priority: have older plumbing checked for lead solder. Check your ZIP → EPA: reduce lead
Colton, SD (57018): High Radon Potential Area - 67/100
EPA data combined for 3 water systems mapped to this ZIP (largest mapped system: Minnehaha Community Water Corporation)
EPA records for the water systems mapped to 57018 in Colton, SD contain zero recorded violations for inclusive record years 2021 through 2026. This does not establish that every category was monitored or published, and it does not cover events outside that source window.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water No drinking-water violations in EPA records since 2021.
- Lead The reported 90th-percentile lead result of 0.001 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
- Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
- Flood 1 cumulative NFIP claim record. Claim evidence is historical, not current map coverage.
Get updates when new water-quality data is available for your area
Free alerts when new EPA data affects ZIP code 57018. No spam - just safety updates.
Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.
See incorrect data? Let us know
Score Breakdown
Overall Home Safety Score: 67/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (6) HIGH
Your Water System
ZIP code 57018 in Colton, South Dakota is mapped to the water system Minnehaha Community Water Corporation (EPA ID: SD4600432). This system provides water to approximately 13,435 people from groundwater sources.
There are 3 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Minnehaha Community Water Corporation | SD4600432 | 13,435 | Groundwater |
| Kingbrook I Rural Water System | SD4600431 | 6,455 | Groundwater |
| Kingbrook Iii Rural Water System | SD4600874 | 2,888 | Groundwater |
Other Water Quality Reports in South Dakota
- 57001 (Alcester) - 2 violations recorded for mapped water systems
- 57002 (Aurora)
- 57003 (Baltic)
- 57004 (Beresford) - 2 violations recorded for mapped water systems
- 57005 (Brandon) - 3 violations recorded for mapped water systems
- 57006 (Brookings) - 3 violations recorded for mapped water systems
- 57007 (Brookings)
- 57010 (Burbank)
- 57012 (Canistota)
- 57013 (Canton) - 3 violations recorded for mapped water systems
- 57014 (Centerville) - 2 violations recorded for mapped water systems
- 57015 (Chancellor) - 2 violations recorded for mapped water systems
- 57016 (Chester) - 1 violation recorded for mapped water systems
- 57017 (Colman) - 1 violation recorded for mapped water systems
- 57020 (Crooks)
- 57021 (Davis)
- 57022 (Dell Rapids) - 1 violation recorded for mapped water systems
- 57024 (Egan) - 3 violations recorded for mapped water systems
- 57025 (Elk Point)
- 57026 (Elkton) - 1 violation recorded for mapped water systems
Nearby Water Quality Reports
- 57041 (Lyons) - 6 mi
- 57016 (Chester) - 7 mi - 1 violation recorded for mapped water systems
- 57003 (Baltic) - 11 mi
- 57020 (Crooks) - 11 mi
- 57109 (Sioux Falls) - 12 mi
- 57117 (Sioux Falls) - 12 mi
- 57118 (Sioux Falls) - 12 mi
- 57193 (Sioux Falls) - 12 mi
- 57197 (Sioux Falls) - 12 mi
- 57198 (Sioux Falls) - 12 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Minnehaha Community Water Corporation (SD4600432) on EPA.gov.
5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
UCMR 5 PFAS monitoring: no reportable detections in available records
Available federal UCMR5 records for water systems mapped to ZIP code 57018 show no PFAS detections among the compounds tested, at the program's reporting levels.
The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.
Environmental Hazards (11) MODERATE
Home & Infrastructure (6) MODERATE
Possible home maintenance concerns - talk to a local expert.
Call (855) 384-4856Paid Partner This is a free service. You will be connected with an independent service provider. We may receive compensation.
Cost & Community (8) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Colton
Based on local data for ZIP 57018, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Colton has 1 FEMA flood claim on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Gutter Installation & Repair
The median home in 57018 was built around 1967. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsWindow Replacement
The median build year of homes in Colton is 1967; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.
Typical cost: Window replacement: typically $300–$800 per window installed
Estimate Your Home Maintenance CostsRoofing Inspection & Repair
Homes built around 1967 may be on their second or third roof. A professional inspection can catch damage before leaks start.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 57018 safe to drink?
EPA SDWIS records 0 violations since 2021 across the water systems mapped to ZIP 57018 (primary system: Minnehaha Community Water Corporation), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 57018's water come from?
The recorded water source for Minnehaha Community Water Corporation, a system mapped to ZIP code 57018, is Groundwater. This system serves approximately 13,435 people.
How does Colton water compare to the national average?
Colton's Home Safety Score ranks lower than 65% of U.S. ZIP codes, and lower than 80% of ZIP codes within South Dakota.
How can I get my water tested in Colton?
If Minnehaha Community Water Corporation supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Is lead a concern in 57018 tap water?
The Lead and Copper Rule record selected for 57018 reports a 90th-percentile lead result of 0.001 mg/L for a water system mapped to this ZIP (record date 2024-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 57018?
57018 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Minnehaha County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
What does the NFIP claim history show for ZIP 57018?
FEMA records contain 1 flood insurance claim filed in ZIP code 57018; the recorded rated-zone value (the most frequent one if there are several claims) is A10, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Colton, SD (57018): High Radon Potential Area - 67/100. https://zipcheckup.com/report/57018/
@misc{zipcheckup-report-57018,
author = {{ZipCheckup}},
title = {{Colton, SD (57018): High Radon Potential Area - 67/100}},
year = {2026},
url = {https://zipcheckup.com/report/57018/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 57018
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 57041 | Lyons, SD | 6.3 mi | C | 0 |
| 57016 | Chester, SD | 7.2 mi | N/A | 1 |
| 57003 | Baltic, SD | 11.0 mi | C | 0 |
| 57020 | Crooks, SD | 11.1 mi | C | 0 |
| 57109 | Sioux Falls, SD | 11.7 mi | N/A | 0 |
| 57117 | Sioux Falls, SD | 11.7 mi | C | 0 |
| 57118 | Sioux Falls, SD | 11.7 mi | N/A | 0 |
| 57193 | Sioux Falls, SD | 11.7 mi | N/A | 0 |
| 57197 | Sioux Falls, SD | 11.7 mi | N/A | 0 |
| 57198 | Sioux Falls, SD | 11.7 mi | N/A | 0 |
Nearby ZIP Code Reports
2026 Rankings for Your Area
Overall safety breakdown
Home Safety Score →Find the right water filter
Water Filter Matcher →Compare filters, tests & services
Compare My Options →Compare with another ZIP
Compare Tool →2026 Rankings