Meyers Lake is a highly nutrient-loaded hypereutrophic lake in Black Hawk County, Iowa. Water quality is graded F based on 2 sampling years through 2024. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 6 other monitored lakes in Black Hawk County, Meyers Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, Iowa DNR, last sampled 2024-10-23. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 1.1 ft of visibility. Chlorophyll-a: 116.5 µg/L. Trophic State Index: 76.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.1 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 116.5 µg/L | F |
| Trophic State Index (TSI) | 76 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Meyers Lake
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Fishing Meyers Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Source: USGS Nonindigenous Aquatic Species (NAS) Database. Hover a chip to see scientific name, ecological context, status, and first-observed year.
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.008 m/yr | 5 |
| Chlorophyll-a | ↓ Declining | +18.55 µg/L/yr | 5 |
Recreation & Access
Water Temperature
Meyers Lake averages about 78°F at the surface in summer, usually warmest in Jul (about 83°F) and coldest in Sep (about 71°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 27 field readings (2010–2023) via the EPA Water Quality Portal. See the full Meyers Lake water temperature breakdown →
Location & Depth Map
Free interactive depth-contour map of Meyers Lake, reaching a maximum surveyed depth of 18 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Iowa DNR.
County Ranking
Ranked #4 of 7 lakes in Black Hawk County
Cleaner Lakes Within 30 Miles
Meyers Lake holds Grade F. 3 nearby lakes hold higher grades.
- DMitchell LakeBlack Hawk County · 1.6 mi · Higher grade (F → D)
- DGreen Belt LakeBlack Hawk County · 5.2 mi · Higher grade (F → D)
- DFisher LakeBlack Hawk County · 8.1 mi · Higher grade (F → D)
Nearby Lakes in Black Hawk County
Explore Meyers Lake across LakeGrade
More Iowa Lake Rankings
Other Grade F Lakes in Iowa
Hypereutrophic Lakes in Iowa
More records, surveys & data sources
EPA Impairment Status
Meyers Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit IA 02-CED-463 · Official waterbody report
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
6 EPA-permitted facilities operate within about 5 miles of Meyers Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 3 facilities have a reported Clean Water Act violation in the past three years.
- Evansdale City Of StpEvansdale · 0.7 mi away · NPDES IA0022004MajorRecent violation
- Elk Run Heights City Of StpElk Run Heights · 1.7 mi away · NPDES IA0034231Recent violation
- Washburn Area-Stp Black Hawk CountyWashburn · 3.1 mi away · NPDES IA0074241Recent violation
- Evansdale, City Of MS4Evansdale · 1.1 mi away · NPDES IA0078654
- Elk Run Heights, City Of MS4Elk Run Heights · 1.6 mi away · NPDES IA0078280
- Raymond, City Of MS4Raymond · 3.1 mi away · NPDES IA0078310
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2024-10-23
Monitoring stations: 1