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LakeQuality

Lmr Lake

B
Grade B — Good
Good · #3 of 9 lakes in the county · 3 ft clear · Eutrophic · from C
Eutrophic

Lmr Lake in Indian River County, Florida has a water quality grade of B (Good). Water clarity: 3 ft visibility. Phosphorus: 38.3 µg/L.

Clarity
3 ft
Typical in August
85°F
Max depth
~24 ft est.
Type
Eutrophic
Trend
Declining
Public access
Yes

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Lmr Lake is a productive, nutrient-rich eutrophic lake in Indian River County, Florida with an estimated average depth of about 24 feet. Water quality is graded B based on 1 sampling years through 2025. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 8 other monitored lakes in Indian River County, Lmr Lake ranks #3 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-05-27. 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 Lmr Lake

Water Quality Grade: B (Good)

Very murky, less than 3 ft of visibility. Phosphorus level: 38.3 µg/L. Trophic State Index: 59.

MetricValueGrade
Water Clarity (Secchi Depth)3 ftNot graded
Phosphorus38.3 µg/LGood
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)59Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Lmr Lake

Compare lakeside cabins, hotels, and vacation rentals near Lmr Lake in Indian River 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 Lmr Lake

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Planning a trip? Cabins and lodging at Lmr Lake · more Florida lake trips

Water Temperature

Lmr Lake typically sits around 85°F at the surface in August. Summer average is about 85°F. Usually warmest in Jul (about 85°F) and coldest in Jan (about 61°F). These are typical values by month — not a live reading.

Jan
61°
Feb
68°
Mar
71°
Apr
76°
May
82°
Jun
84°
Jul
85°
Aug
85°
Sep
82°
Oct
77°
Nov
68°
Dec
67°

Typical surface water temperature by month, from 156 field readings (20102025) via the EPA Water Quality Portal. See the full Lmr Lake water temperature breakdown →

Lake Details

CharacteristicValue
Maximum Depth~24 ft est.
Average Depth~9 ft est.
Public AccessYes

Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Florida has not published bathymetry for Lmr Lake.

Lake Size & Watershed

Watershed (drainage) area
188 sq mi
Surface area
1,586 acres
Shoreline
8.9 mi
Elevation
10 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.

Recreation & Access

2
Boat Landings
Yes
Public Access
  • Blue Cypress Recreation AreaPublic
  • Blue Cypress Recreation Area Airboat RampPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Fishing Lmr Lake

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

MetricTrendChange/YearYears
Water Clarity Declining-0.073 m/yr5
Phosphorus Stable+0.42 µg/L/yr5
See year-by-year chart →

County Ranking

Ranked #3 of 9 lakes in Indian River County

Nearby Lakes in Indian River County

Frequently asked questions about Lmr Lake

Where is Lmr Lake?

Lmr Lake is a lake in Indian River County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Lmr Lake?

Lmr Lake in Indian River County, Florida has a water quality grade of B (Good). Water clarity: 3 ft visibility. Phosphorus: 38.3 µg/L.

Is Lmr Lake safe to swim in?

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

What is the water temperature of Lmr Lake?

Lmr Lake typically sits around 85°F at the surface in August, from 156 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.

How deep is Lmr Lake?

No published bathymetric survey covers Lmr Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 24 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.

Are there boat ramps on Lmr Lake?

Lmr Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Blue Cypress Recreation Area, Blue Cypress Recreation Area Airboat Ramp. Public access is listed as yes.

Where this data comes from

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

Collected and reported by

  • St. Johns River Water Management District21FLSJWM_WQX175 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

Lake size & watershed from HydroLAKES (HydroSHEDS)

Named boat-access points from the USGS National Boat Ramps inventory