Lacamas Lake
Clark County, Washington350 acresView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Impaired · Nuisance exotic species
- Public access
- Limited data
Lacamas Lake in Clark County, Washington is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.4 ft visibility. Surface area: 350 acres.
- Clarity
- 4.4 ft
- Area
- 350 acres
- Trend
- ↓ Declining
- Public access
- Yes
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Stays near Lacamas Lake
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Watch Lacamas Lake’s letter
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Why Lacamas Lake has no grade
Lacamas Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Lacamas Lake is Not Rated — not an F. Its 4.4-foot median from 2 readings collected 2012–2014 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by WA Ecology and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lacamas Lake is a 350-acre lake in Clark County, Washington. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, WA Ecology, last sampled 2014-07-02. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Lacamas Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nuisance exotic species, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Water quality measurements for Lacamas Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 4.4 ft. TSI 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.4 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 350 acres |
| Public Access | Yes |
No bathymetric survey has been published for Lacamas Lake, so its depth is not documented here.
Fishing Lacamas Lake
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.25 m/yr | 2 |
Reservoir Info (USACE NID)
Lacamas Lake is a man-made reservoir impounded by the Lacamas & Round Lakes Upper Dam (completed 1936), built primarily for recreation on the Lacamas Creek; buttress-type dam, 28 ft tall.
- Surface area
- 350 ac
- Normal storage
- 6,100 ac-ft
- Max storage
- 6,800 ac-ft
- Drainage area
- 64.7 sq mi
- Hazard class
- High
- Owner
- Camas City Public Works Dept
All listed purposes: Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID WA00118 · Operator website · Matched by proximity (0.17 km)
EPA Impairment Status
Lacamas Lake is officially listed as impaired under Clean Water Act §303(d) in the 2018 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit WA17080001001149_001_001 · Official waterbody report
Graded lakes near Lacamas Lake
Lacamas Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Clark County
Frequently asked questions about Lacamas Lake
Where is Lacamas Lake?
- Lacamas Lake is a lake in Clark County, Washington. 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 Lacamas Lake?
- Lacamas Lake in Clark County, Washington is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.4 ft visibility. Surface area: 350 acres.
Is Lacamas Lake safe to swim in?
- The letter is not a swimming clearance. Lacamas Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nuisance exotic species, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Explore Lacamas Lake across LakeQuality
4 documented falls within 14.1 mi, nearest Latourell Falls
21.8 mi away · recorded at 97°F
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Where this data comes from
2 measurements from 1 monitoring station, 2012–2014. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS2 samples · 2012–2014
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