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LakeQuality

Brewer Lake

Conway County, Arkansas1,165 acresView mapDirections

NR
Not rated

Not enough samples to grade — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. No letter yet. Here is what we do have.

Water temp
No reading
No gauge
Clarity
2.9 ft
Secchi · sampled 2013
Level
No reading
No gauge
Trend
Declining
2 years of samples
  • Public access
  • Limited data

Brewer Lake in Conway County, Arkansas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.9 ft visibility. Phosphorus: 47.5 µg/L. Chlorophyll-a (algae): 23 µg/L. Surface area: 1165 acres.

Clarity
2.9 ft
Area
1,165 acres
Phosphorus
47.5 µg/L
Chlorophyll-a
23 µg/L
Trend
Declining
Public access
Yes
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Why Brewer 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 Brewer Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, phosphorus and 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 ADEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Brewer Lake is a 1,165-acre lake in Conway County, Arkansas. 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, ADEQ, last sampled 2013-12-11. Grade methodology: LakeQuality methodology.

What Brewer Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp
  • Big water1,165 acres

Swimming Safety

Not rated

Limited data

The letter is not a swimming clearance. Check local advisories before you swim.

Get alerts for Brewer Lake

Water quality measurements for Brewer Lake

These readings exist but are not enough for an A–F grade — see why.

Very murky, less than 2.9 ft of visibility. Phosphorus 47.5 µg/L. Chlorophyll-a 23 µg/L. TSI 61.

MetricValueGrade
Water Clarity (Secchi Depth)2.9 ftNot graded
Phosphorus47.5 µg/LNot graded
Chlorophyll-a (Algae)23 µg/LNot graded
Trophic State Index (TSI)61Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Surface Area1,165 acres
Public AccessYes

No bathymetric survey has been published for Brewer Lake, so its depth is not documented here.

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Reservoir RoadPublic

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

Fishing Brewer Lake

Based on 2 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.2 m/yr2
Phosphorus Declining+6.5 µg/L/yr2
Chlorophyll-a Declining+0.7 µg/L/yr2

Reservoir Info (USACE NID)

Brewer Lake is a man-made reservoir impounded by the Brewer Lake (completed 1983), built primarily for water supply on the Cypress Creek; earth-type dam, 83 ft tall and 1,374 ft long.

Surface area
1,165 ac
Normal storage
18,000 ac-ft
Max storage
23,500 ac-ft
Drainage area
36.4 sq mi
Hazard class
Significant
Owner
Conway Corporation

Source: USACE National Inventory of Dams, NID ID AR01422 · Operator website

Graded lakes near Brewer Lake

Brewer Lake has no grade, but these lakes within a short drive do.

Nearby Lakes in Conway County

Frequently asked questions about Brewer Lake

Where is Brewer Lake?

Brewer Lake is a lake in Conway County, Arkansas. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.

What is the water quality grade for Brewer Lake?

Brewer Lake in Conway County, Arkansas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.9 ft visibility. Phosphorus: 47.5 µg/L. Chlorophyll-a (algae): 23 µg/L. Surface area: 1165 acres.

Is Brewer Lake safe to swim in?

The letter is not a swimming clearance. Check local advisories before you swim.

Are there boat ramps on Brewer Lake?

Brewer Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Reservoir Road. Public access is listed as yes.

Where this data comes from

53 measurements from 1 monitoring station, 2012–2013. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • USGS Arkansas Water Science CenterUSGS-AR53 samples · 2012–2013

Analytical methods

  • Secchi disk method
  • P, wu, WCA, persulfate CF color
  • Plant pigments, sonication & 445
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

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