George Wyth Beach Lake
Black Hawk County, IowaView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Impaired · Pathogens (E. coli, fecal)
- Public access
- Limited data
George Wyth Beach Lake in Black Hawk County, Iowa is not rated for water quality — its monitoring record does not meet the evidence bar.
- Trend
- ↓ Declining
- Public access
- Yes
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Watch George Wyth Beach Lake’s letter
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Why George Wyth Beach Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For George Wyth Beach Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by Iowa DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
George Wyth Beach Lake is a lake in Black Hawk County, Iowa. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Iowa DNR, last sampled 2024-08-21. Grade methodology: LakeQuality methodology.
What George Wyth Beach Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Camping1 public campground nearby
Swimming Safety
Not ratedBacteria D · advisory
Based on E. coli testing, George Wyth Beach Lake frequently exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 19.4% of 98 samples across 7 seasons.
This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Iowa’s current beach and health-department advisories before swimming.
Water quality measurements for George Wyth Beach Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Recreation & Access
- George Wyth State ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near George Wyth Beach Lake
- George Wyth State Park-Campground0.4 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Fishing George Wyth Beach Lake
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.036 m/yr | 5 |
| Phosphorus | ↓ Declining | +12.05 µg/L/yr | 4 |
| Chlorophyll-a | ↓ Declining | +2.98 µg/L/yr | 5 |
EPA Impairment Status
George Wyth Beach Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit IA 02-CED-465 · Official waterbody report · Matched by proximity (0.64 km)
Graded lakes near George Wyth Beach Lake
George Wyth Beach Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Black Hawk County
Frequently asked questions about George Wyth Beach Lake
Where is George Wyth Beach Lake?
- George Wyth Beach Lake is a lake in Black Hawk County, Iowa. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for George Wyth Beach Lake?
- George Wyth Beach Lake in Black Hawk County, Iowa is not rated for water quality — its monitoring record does not meet the evidence bar.
Is George Wyth Beach Lake safe to swim in?
- Based on E. coli testing, George Wyth Beach Lake frequently exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 19.4% of 98 samples across 7 seasons. That works out to a bacteria swim-safety grade of D — a historical summary of past testing, not a current reading. George Wyth Beach Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Bacteria levels can spike quickly after heavy rain, so always check Iowa's current beach and health-department advisories before you swim.
Are there boat ramps on George Wyth Beach Lake?
- George Wyth Beach Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include George Wyth State Park. Public access is listed as yes.
Are there campgrounds on George Wyth Beach Lake?
- George Wyth Beach Lake has 1 public campground from USGS The National Map within 5 km, including George Wyth State Park-Campground. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore George Wyth Beach Lake across LakeQuality
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Where this data comes from
38 measurements from 1 monitoring station, 2021–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Iowa DNR Surface Water Monitoring Data
21IOWA_WQX38 samples · 2021–2024
Analytical methods
- 2130 B ~ Nephelometric Method
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory
Public campgrounds from USGS The National Map Structures, within about 3 miles