Kerrwest Lake
Kerrwest Lake in Marion County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.2 ft visibility. Phosphorus: 12 µg/L.
- Clarity
- 6.2 ft
- Typical in August
- 86°F
- Trend
- → Stable
- Public access
- Yes
Next lake in Marion County
Swipe left or right on this bar to open the next or previous lake.
Why Kerrwest 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 Kerrwest Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity and phosphorus, but not algae (chlorophyll-a).
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 FDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Kerrwest Lake is a lake in Marion County, Florida. Water clarity 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, FDEP, last sampled 2024-09-17. Grade methodology: LakeQuality methodology.
Watch Kerrwest Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Kerrwest Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 6.2 ft. Phosphorus level: 12 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.2 ft | Not graded |
| Phosphorus | 12 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Kerrwest Lake
Compare lakeside cabins, hotels, and vacation rentals near Kerrwest Lake in Marion County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Kerrwest Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Florida’s top lakes →
Water Temperature
Kerrwest Lake typically sits around 86°F at the surface in August. Summer average is about 86°F. Usually warmest in Aug (about 86°F) and coldest in May (about 80°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 8 field readings (2019–2025) via the EPA Water Quality Portal. See the full Kerrwest Lake water temperature breakdown →
Recreation & Access
- Moorehead Park Public Boat RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Kerrwest Lake
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.105 m/yr | 5 |
| Phosphorus | ↑ Improving | -5.1 µg/L/yr | 5 |
EPA Impairment Status
Kerrwest Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL2899B · Official waterbody report · Matched by proximity (1.02 km)
Graded lakes near Kerrwest Lake
Kerrwest Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Marion County
Frequently asked questions about Kerrwest Lake
Where is Kerrwest Lake?
- Kerrwest Lake is a lake in Marion County, Florida. 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 Kerrwest Lake?
- Kerrwest Lake in Marion County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.2 ft visibility. Phosphorus: 12 µg/L.
Is Kerrwest Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Kerrwest Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What is the water temperature of Kerrwest Lake?
- Kerrwest Lake typically sits around 86°F at the surface in August, from 8 EPA Water Quality Portal field readings (2019–2025). That is a typical value for the month, not a live reading.
Are there boat ramps on Kerrwest Lake?
- Kerrwest Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Moorehead Park Public Boat Ramp. Public access is listed as yes.
Explore Kerrwest Lake across LakeQuality
More Florida Lake Rankings
Other Lakes in Florida
Mesotrophic Lakes in Florida
Where this data comes from
2 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FL Dept. of Environmental Protection, Northeast District
21FLA_WQX2 samples · 2024
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