Hauser Lake D
Lewis and Clark County, MontanaView mapDirections
Montana DEQ publishes the water-quality measurements for Hauser Lake D. Here is what has been measured.
- Impaired · Mercury
- Public access
- Limited data
Hauser Lake D in Lewis and Clark County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Water clarity: 21.8 ft visibility.
Hauser Lake D is a lake in Lewis and Clark County, Montana. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Montana DEQ, last sampled 2026-06-16. Methodology: how these readings are compared.
What Hauser Lake D is good for
From access and monitoring records, not editorial picks.
- Clear water21.8 ft of visibility
- Boat launch1 documented ramp
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Hauser Lake D is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, metals (other than mercury), nutrients (phosphorus, nitrogen), oxygen depletion (low DO), pesticides. Check local advisories before you swim.
Whether Hauser Lake D is safe to swim in today is a call for the Montana Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Hauser Lake D
These are the measurements Montana DEQ publishes for Hauser Lake D, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 21.8 ft down. TSI 33.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 21.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 33 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Hauser Lake D
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
- York BridgePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Stays near Hauser Lake D
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Fishing Hauser Lake D
EPA Impairment Status
Hauser Lake D is officially listed as impaired under Clean Water Act §303(d) in the 2021 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Drinking water, Aquatic life.
Source: EPA ATTAINS assessment unit MT41I007_040 · Official waterbody report
Nearby Lakes in Lewis and Clark County
Frequently asked questions about Hauser Lake D
Where is Hauser Lake D?
- Hauser Lake D is a lake in Lewis and Clark County, Montana. Its water-quality measurements are published by Montana DEQ and shown on this page as reported.
What is the water quality of Hauser Lake D?
- Hauser Lake D in Lewis and Clark County, Montana has water-quality measurements published by Montana DEQ, shown here as reported. Water clarity: 21.8 ft visibility.
Is Hauser Lake D safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Hauser Lake D is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, metals (other than mercury), nutrients (phosphorus, nitrogen), oxygen depletion (low DO), pesticides. Check local advisories before you swim.
Are there boat ramps on Hauser Lake D?
- Hauser Lake D has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include York Bridge. Public access is listed as yes.
Can I fish at Hauser Lake D?
- Hauser Lake D has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Montana's fish and wildlife agency, so check its current regulations before you go.
Explore Hauser Lake D across LakeQuality
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Where this data comes from
11 measurements from 1 monitoring station, 2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Montana DEQ WQPB
MDEQ_WQ_WQX11 samples · 2026
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory