Is Lake Park, IA Tap Water Safe to Drink?
Graded A, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do next ↓
91.9/100
waterverge.com Lake Park, IA — Water Quality Report
Lake Park's drinking water received a grade of A (91.9 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 1,167 residents using purchased ground water.
Lead levels were measured at 4.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 11 violations on record, including 3 health-based violations. 1 remains unresolved.
What to know about Lake Park's water
Lake Park ranks #109 out of 436 cities in Iowa for water quality, placing it above average in the state.
Lake Park purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.
As a small community water system, Lake Park may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Lake Park, IA water safe to drink?
Lake Park's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (91.9/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,167 residents using groundwater (wells).
Recent water quality updates for Lake Park
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Lake Park's water quality assessment. Grade: A (91.9/100).
Federal disaster declaration (FEMA DR-4421). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4184). Flood event — may have impacted local water infrastructure.
Contaminants: Coliform (TCR).
Contaminants: Coliform (TCR).
Contaminants: Dalapon.
Key contaminant findings
Based on the most recent EPA sampling data for Lake Park's water supply.
Well within EPA limits.
Violation history
Lake Park's water system has 11 total violations on record, including 3 health-based violations. 1 remain unresolved.
Flood & environmental risk
Dickinson County has experienced 8 federally declared disasters since 1965. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include West Okoboji Lake At Lakeside Lab Near Milford.
Where does Lake Park's water come from?
Lake Park's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,167 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include West Okoboji Lake At Lakeside Lab Near Milford (lake).
What Lake Park residents can do
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Lake Park's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Flood & disaster history
Dickinson County has experienced 8 federally declared disasters since 1965. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 4.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Lake Park compares by contaminant
Explore where Lake Park ranks among all Iowa cities for specific contaminants.
Water source & infrastructure
Where Lake Park's water comes from
Lake Park purchases its water supply from a regional wholesale provider rather than treating raw water directly.
Water quality depends on both the wholesaler's treatment standards and the condition of Lake Park's local distribution pipes and storage facilities.
Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.
The system is operated by local government ownership and serves approximately 1,167 people through 1 water system.
Water bodies near Lake Park
Lake Park is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Lake Park
| System Name | PWSID | Population | Source |
|---|---|---|---|
| LAKE PARK MUNICIPAL UTILITIES | IA3045046 | 1,167 | GWP |
How Lake Park compares
Full Iowa rankings →Lake Park's score of 91.9/100 is above the average of 72/100 among major Iowa cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Iowa rankings →About Lake Park, IA
Learn more about your water
Guides and resources related to Lake Park's water quality findings.
Explore water quality across Dickinson
Frequently asked questions
Is Lake Park, IA tap water safe to drink?
Lake Park's water quality earned a grade of A (91.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #109 out of 436 cities tested in Iowa.
What contaminants are in Lake Park's water?
Lead was measured at 4.0 ppb (90th percentile). 11 violations are on record.
How is Lake Park's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Lake Park?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Lake Park's water come from?
Lake Park's water is sourced from Purchased ground water. The city has 1 water system serving approximately 1,167 residents.
What health violations has Lake Park's water system had?
Lake Park has 3 health-based violations on record. The most recent violation was recorded in May 2005. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 1 violation remains unresolved.
Is Lake Park's groundwater at risk of contamination?
Lake Park uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 11 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Lake Park's water compare to other cities?
Lake Park ranks #109 out of 436 cities in Iowa (better than 75% of state cities) and #1456 out of 15744 cities nationally (91th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Lake Park's small water system affect quality?
Lake Park's system serves approximately 1,167 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 11 violations on record.