Nla Upper Lake
Grays Harbor County, WashingtonView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Public access
- Limited data
Nla Upper Lake in Grays Harbor County, Washington is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 12.4 µg/L. Chlorophyll-a (algae): 0.9 µg/L.
- Phosphorus
- 12.4 µg/L
- Chlorophyll-a
- 0.9 µg/L
- Public access
- Yes
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Watch Nla Upper Lake’s letter
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Why Nla Upper 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 Nla Upper Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded phosphorus and algae (chlorophyll-a), but not water clarity.
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 WA Ecology and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Nla Upper Lake is a lake in Grays Harbor County, Washington. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, WA Ecology, last sampled 2017-07-26. Grade methodology: LakeQuality methodology.
What Nla Upper Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Camping3 public campgrounds nearby
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Nla Upper Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Phosphorus 12.4 µg/L. Chlorophyll-a 0.9 µg/L. TSI 35.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 12.4 µg/L | Not graded |
| Chlorophyll-a (Algae) | 0.9 µg/L | Not graded |
| Trophic State Index (TSI) | 35 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Recreation & Access
- Falls Creek CampgroundPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Nla Upper Lake
- Falls Creek1.6 km
- Gatton Creek Campground1.6 km
- Willaby2.2 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Fishing Nla Upper Lake
Nearby Lakes in Grays Harbor County
Frequently asked questions about Nla Upper Lake
Where is Nla Upper Lake?
- Nla Upper Lake is a lake in Grays Harbor 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 Nla Upper Lake?
- Nla Upper Lake in Grays Harbor County, Washington is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 12.4 µg/L. Chlorophyll-a (algae): 0.9 µg/L.
Is Nla Upper Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Nla Upper Lake?
- Nla Upper Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Falls Creek Campground. Public access is listed as yes.
Are there campgrounds on Nla Upper Lake?
- Nla Upper Lake has 3 public campgrounds from USGS The National Map within 5 km, including Falls Creek, Gatton Creek Campground, Willaby. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Nla Upper Lake across LakeQuality
Planning a trip around Olympic?
Nla Upper Lake is about 24 miles from Olympic National Park. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Olympic →More Washington Lake Rankings
Other Lakes in Washington
Oligotrophic Lakes in Washington
Where this data comes from
2 measurements from 1 monitoring station, 2017. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Quinault Indian Nation (Tribal)
QIN_WQX2 samples · 2017
Analytical methods
- 4500 P H ~ Manual Digestion and Flow Injection Analysis for Total Phosphorus
- 10200 H 2 ~ Chlorophyll a-b-c Determination by spectrophotometer
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
Public campgrounds from USGS The National Map Structures, within about 3 miles