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LakeQuality

Campbell Lake Middle

B
Grade B — Good
Good · #5 of 84 lakes in the county · 9 ft clear · Mesotrophic · from A
Mesotrophic

Campbell Lake Middle in Walton County, Florida has a water quality grade of B (Good). Water clarity: 9 ft visibility. Phosphorus: 9 µg/L.

Clarity
9 ft
Typical in August
87°F
Type
Mesotrophic
Trend
Improving

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Campbell Lake Middle is a mesotrophic lake in Walton County, Florida. Water quality is graded B based on 1 sampling years through 2025. Overall water quality is improving over recent sampling years. Compared to the 83 other monitored lakes in Walton County, Campbell Lake Middle ranks #5 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-02-13. 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 Campbell Lake Middle

Water Quality Grade: B (Good)

Moderate clarity, visible to about 9 ft. Phosphorus level: 9 µg/L. Trophic State Index: 41.

MetricValueGrade
Water Clarity (Secchi Depth)9 ftNot graded
Phosphorus9 µg/LGood
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)41Mesotrophic

Moderate nutrients, good water quality

Where to stay near Campbell Lake Middle

Compare lakeside cabins, hotels, and vacation rentals near Campbell Lake Middle 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 Campbell Lake Middle

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

Campbell Lake Middle typically sits around 87°F at the surface in August. Summer average is about 86°F. Usually warmest in Aug (about 87°F) and coldest in Jan (about 55°F). These are typical values by month — not a live reading.

Jan
55°
Feb
60°
Mar
66°
Apr
72°
May
80°
Jun
85°
Jul
86°
Aug
87°
Sep
83°
Oct
76°
Nov
64°
Dec
60°

Typical surface water temperature by month, from 407 field readings (20102025) via the EPA Water Quality Portal. See the full Campbell Lake Middle water temperature breakdown →

Fishing Campbell Lake Middle

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

MetricTrendChange/YearYears
Water Clarity Improving+0.96 m/yr5
Phosphorus Improving-0.8 µg/L/yr5
See year-by-year chart →

EPA Impairment Status

Campbell Lake Middle is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

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

Source: EPA ATTAINS assessment unit FL944 · Official waterbody report · Matched by proximity (1.58 km)

County Ranking

Ranked #5 of 84 lakes in Walton County

Nearby Lakes in Walton County

Frequently asked questions about Campbell Lake Middle

Where is Campbell Lake Middle?

Campbell Lake Middle 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 Campbell Lake Middle?

Campbell Lake Middle in Walton County, Florida has a water quality grade of B (Good). Water clarity: 9 ft visibility. Phosphorus: 9 µg/L.

Is Campbell Lake Middle safe to swim in?

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

What is the water temperature of Campbell Lake Middle?

Campbell Lake Middle typically sits around 87°F at the surface in August, from 407 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

118 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • CHOCTAWHATCHEE BASIN ALLIANCE21FLCBA_WQX118 samples · 2020–2025
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