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LakeQuality

Walton-Western Lake

B
Grade B — Good
Good · #7 of 84 lakes in the county · 6 ft clear · Mesotrophic
Mesotrophic

Walton-Western Lake in Walton County, Florida has a water quality grade of B (Good). Water clarity: 6 ft visibility. Phosphorus: 10 µg/L.

Clarity
6 ft
Typical in August
87°F
Type
Mesotrophic
Trend
Declining

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Walton-Western Lake is a mesotrophic lake in Walton County, Florida. Water quality is graded B based on 1 sampling years through 2022. Overall water quality is declining over recent sampling years. Compared to the 83 other monitored lakes in Walton County, Walton-Western Lake ranks #7 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2022-05-04. Grade methodology: LakeQuality methodology.

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Swimming Safety

Grade only

Low algae

Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

Good for swimming, clear water with low algae levels

Get alerts for Walton-Western Lake

Water Quality Grade: B (Good)

Murky, only visible to about 6 ft. Phosphorus level: 10 µg/L. Trophic State Index: 44.

MetricValueGrade
Water Clarity (Secchi Depth)6 ftNot graded
Phosphorus10 µg/LGood
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)44Mesotrophic

Moderate nutrients, good water quality

Where to stay near Walton-Western Lake

Compare lakeside cabins, hotels, and vacation rentals near Walton-Western Lake in Walton 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 Walton-Western 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

Walton-Western Lake typically sits around 87°F at the surface in August. Summer average is about 86°F. Usually warmest in Jul (about 88°F) and coldest in Jan (about 59°F). These are typical values by month — not a live reading.

Jan
59°
Feb
63°
Mar
69°
Apr
75°
May
79°
Jun
84°
Jul
88°
Aug
87°
Sep
82°
Oct
76°
Nov
67°
Dec
65°

Typical surface water temperature by month, from 375 field readings (20102025) via the EPA Water Quality Portal. See the full Walton-Western Lake water temperature breakdown →

Fishing Walton-Western Lake

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.24 m/yr5
Phosphorus Stable+0.15 µg/L/yr5
See year-by-year chart →

EPA Impairment Status

Walton-Western Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryOxygen depletion (low DO)

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit FL1009A · Official waterbody report · Matched by proximity (0.35 km)

County Ranking

Ranked #7 of 84 lakes in Walton County

Nearby Lakes in Walton County

Frequently asked questions about Walton-Western Lake

Where is Walton-Western Lake?

Walton-Western Lake is a lake in Walton County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Walton-Western Lake?

Walton-Western Lake in Walton County, Florida has a water quality grade of B (Good). Water clarity: 6 ft visibility. Phosphorus: 10 µg/L.

Is Walton-Western Lake safe to swim in?

Good for swimming, clear water with low algae levels. Walton-Western Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.

What is the water temperature of Walton-Western Lake?

Walton-Western Lake typically sits around 87°F at the surface in August, from 375 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.

Where this data comes from

149 measurements from 3 monitoring stations, 2020–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • FLORIDA LAKEWATCH21FLKWAT_WQX149 samples · 2020–2022
Monitoring station identifiers (3)

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