Devils Lake, Lincoln City, Oregon
 
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Water Quality

Monitoring Season: Memorial Day to Labor Day

Temperature: 63F / 17C
The Monitoring Page
Lake Level: 9.3 ft / 2.8 m
Devils Lake E coli Bacteria Chart
E.coli   
    • The Devils Lake Water Improvement District conducts weekly E. coli tests of the freshwater beaches and major tributaries of Devils Lake in the summer months.The data are for your information only, and do not indicate a closure or an actual advisory, but are posted here to serve as a guide to water quality in and around Devils Lake and the D River.
    • The current value for each sample site is listed and color coded Red, Yellow or Green.  These colors are associated with health risks based on state and federal guidelines for freshwater swimming waters.
    • E. coli themselves with rare exceptions are generally harmless, but they are correlated with fecal inputs to the lake which may contain pathogenic agents. E. coli then are used as an indicator organism for such fecal inputs. 
    • Sources of E. coli include humans, birds, cats, dogs, horses, and other warm blooded animals in the watershed. Please Do Not Feed Seagulls, Ducks or other birds.  Likewise pets also contribute to the degradation of water quality and pet owners need to mindfully clean up pet waste.  Incremental effects do add up and thus protecting Devils Lake is the responsibility of everyone in the watershed.
    • Please note that water quality can change quickly and is highly impacted by runoff from urban environments.  After a storm event it is generally best to wait 48 hours before swimming near where storm drains meet receiving waters. 
    • For information from the World Health Organization about Recreational Water Use, click here .
    • Click here for information about Oregon's Ocean Beaches' Monitoring Program.

    STAY INFORMED: To get emailed updates about water quality, sign up for the DLWID email list.
Cyanobacteria
   
Protect_Pets  Click for Full Size Image
Sampling begins with onset of cyanobacteria blooms.
 
 
 

The Devils Lake Water Improvement District is embarking on its fifth year of the CYANO-WATCH program.   A three pronged approach, the Cyano-Watch program is designed to educate (GREEN), inform (YELLOW) or advise about (RED) the use of Devils Lake as warranted during the three phases of the program. The season when cyanobacteria flourish is generally July - September, so lake users should be aware of precautions to be taken when bloom conditions exist.  Once cyanobacteria blooms are observed the District will begin toxin monitoring. The District begins its toxin analysis    Always watch and stay clear of cyanoblooms or scummy water, keeping both children and pets safe.

  

 

STAY INFORMED: Join the CYANO-WATCH email list.  Get critical updates about the status of cyanobacteria blooms in Devils Lake as they happen. Sampling for 2010 has not yet begun....Stay tuned for updates as they happen. 

cyano-watch

Cyano-watch table

Cyanobacteria Recreational Water Quality Standards
stoplight
Parameter Value Regulatory Agency
Total Microcystin less than 8 ppb Oregon DHS
Cells / ml < 40,000 Microcystis or Planktothrix Oregon DHS
Cells / ml < 100,000 All Potentially Toxigenic Taxa Oregon DHS
Cells / ml < 20,000 All Potentially Toxigenic Taxa World Health Organization
Cells / ml < 20,000 All Potentially Toxigenic Taxa World Health Organization
Scum Formation No Toxigenic Species present Oregon DHS

 

Most Recent Cyanobacteria Results
Date
Sample Site
Microcystin (ppb)

Cell Counts/Density
2009-09-02 D River = 0.84 No Scum - Low Density
  Campground = 2.02 No Scum - Low Density
  Regatta Grounds = 2.78 No Scum - Low Density
  Holmes Road Park = 3.74 No Scum - Low Density
  Sand Point = 3.64 No Scum - Low Density
  East D.L. State Park = 2.02 No Scum - Low Density
  Mid Lake = 0.46 No Scum - Low Density
  NE Arm = 2.56 No Scum - Low Density
  NW Arm = 2.90 No Scum - Low Density
  Southern End = 2.08 No Scum - Low Density
  East Thumb = 3.08 No Scum - Low Density
  Deepest Point = 2.44 No Scum - Low Density
       
2009-09-02 D River = 0.60 No Scum - Low Density
  Campground = 3.60 Some Scum - Moderate Density
  Regatta Grounds = 2.96 No Scum - Moderate Density
  Holmes Road Park > 10.00 Some Scum - Moderate Density
  Sand Point = 2.48 No Scum - Low Density
  East D.L. State Park = 2.98 Some Scum - Moderate Density
  Mid Lake = 2.86 Moderate Scum - Moderate Density
  NE Arm = 4.26 No Scum - Low Density
  NW Arm = 4.00 No Scum - Low Density
  Southern End = 3.72 No Scum - Low Density
  East Thumb = 3.86 No Scum - Low Density
  Deepest Point = 4.24 Some Scum - Moderate Density
       
2009-08-19 D River < 0.75 No Scum - Low Density
  Campground = 5.95 Some Scum - Moderate Density
  Regatta Grounds = 7.90 No Scum - Moderate Density
  Holmes Road Park = 7.30 Some Scum - Moderate Density
  Sand Point = 31.00 No Scum - Low Density
  East D.L. State Park = 4.25 Some Scum - Moderate Density
  Mid Lake = 1.45 Moderate Scum - Moderate Density
  NE Arm = 1.40 No Scum - Low Density
  NW Arm = 3.25 No Scum - Low Density
  Southern End < 0.75 No Scum - Low Density
  East Thumb = 2.35 No Scum - Low Density
  Deepest Point =  18.85 Some Scum - Moderate Density
       

2009-08-05

 D River > 10.00 Some Scum - Low Density
  Devils Lake Campground = 2.00 Some Scum - Low Density
  Regatta Grounds = 6.58 Some Scum - Moderate Density
  Holmes Road Park > 50.00 Some Scum - 56,958 cells/ml
  Sand Point = 1.18 Some Scum - Low Density
  East Devils Lake State Park = 0.92 Some Scum - 8,330 cells/ml
  Lake -- NW Arm < 0.30 No Scum - Low Density
  Lake -- NE Arm > 10.00 No Scum - Low Density
  Lake -- East of Sand Point > 10.00 No Scum - Low Density
  Lake -- Deepest Point < 0.30 No Scum - Low Density
  Lake -- Midpoint = 0.54 Some Scum - Low Density
  Lake -- South End = 0.76 No Scum - 2,097 cells/ml
       

2009-07-31

 D River No Data No Scum - Low Density
  Devils Lake Campground No Data Some Scum - Low Density
  Regatta Grounds No Data Some Scum - Moderate Density
  Holmes Road Park No Data Some Scum - Low Density
  Sand Point No Data Some Scum - Moderate Density
  East Devils Lake State Park No Data Some Scum - Moderate Density
  Lake -- NW Arm No Data No Scum - Low Density
  Lake -- NE Arm No Data No Scum - Low Density
  Lake -- East of Sand Point No Data No Scum - Low Density
  Lake -- Deepest Point No Data No Scum - Low Density
  Lake -- Midpoint No Data Heavy Scum - High Density
  Lake -- South End No Data No Scum - Low Density
       

2009-07-27

 D River < 0.30 ppb Some Scum - Low Density
  Devils Lake Campground = 0.92 ppb Some Scum - Low Density
  Regatta Grounds = 1.54 ppb Some Scum - Moderate Density
  Holmes Road Park < 0.30 ppb Some Scum - Moderate Density
  Sand Point < 0.30 ppb Some Scum - Low Density
  East Devils Lake State Park < 0.30 ppb Some Scum - Moderate Density 
  Lake -- NW Arm = 0.68 ppb No Scum - Low Density
  Lake -- NE Arm = 0.54 ppb No Scum - Low Density
  Lake -- East of Sand Point < 0.30 ppb No Scum - Low Density
  Lake -- Deepest Point = 0.34 ppb No Scum - Low Density
  Lake -- Midpoint < 0.30 ppb Some Scum - Low Density
  Lake -- South End No data No Scum - Low Density
       

2009-07-20

 D River < 0.30 ppb No Scum - Low Density
  Devils Lake Campground < 0.30 ppb Some Scum - Low Density
  Regatta Grounds = 6.16 ppb Some Scum - Moderate Density 
  Holmes Road Park < 0.30 ppb Some Scum - Low Density
  Sand Point < 0.30 ppb No Scum - Low Density
  East Devils Lake State Park < 0.30 ppb Some Scum - Moderate Density 
  Lake -- NW Arm < 0.30 ppb No Scum - Low Density
  Lake -- NE Arm < 0.30 ppb No Scum - Low Density
  Lake -- East of Sand Point < 0.30 ppb No Scum - Low Density
  Lake -- Deepest Point < 0.30 ppb No Scum - Low Density
  Lake -- Midpoint < 0.30 ppb No Scum - Low Density
  Lake -- South End < 0.30 ppb No Scum - Low Density
       

2009-07-06

 D River No Data No Scum - Low Density
  Devils Lake Campground No Data Some Scum - Low Density
  Regatta Grounds No Data Moderate Scum - High Density 
  Holmes Road Park No Data Some Scum - Low Density
  Sand Point No Data No Scum - Moderate Density
  East Devils Lake State Park No Data No Scum - Low Density
  Lake -- NW Arm No Data No Scum - Low Density
  Lake -- NE Arm No Data No Scum - Low Density
  Lake -- East of Sand Point No Data No Scum - Low Density
  Lake -- Deepest Point No Data No Scum - Low Density
  Lake -- Midpoint No Data No Scum - Low Density
  Lake -- South End No Data No Scum - Low Density

For more information about cyanobacteria and cyanotoxins visit:

Oregon's Harmful Algae Bloom Surveillance

USGS Kansas Algal Toxin Research Team

          Listen to a USGS Pod Cast from Drs Graham, Rosen, and Loftin

World Health Organization

Chorus & Bartram, 1999. Toxic cyanobacteria in water: A guide to their public health consequences, monitoring and management

Addressing Public Health Risks for Cyanobacteria in Recreational Freshwaters: The Oregon and Vermont Framework

Washington State Department of Health

Washington State Department of Ecology: Public Health & Algae

CDC (Center for Disease Control): Cyanobacteria

USGS: Harmful Algal Blooms PDF

NOAA: Harmful Algal Bloom Response

NALMS Blue-Green Algae Page

CYANO-SITE: Cyanobacterial Research

Current approaches to cyanotoxin risk assessment, risk management and regulations in different countries

 

 
Lake Level and Precipitation
Lake Level
Temperature
Temperature
Monitoring Protocols, Resources and Additional Information

Water Quality Monitoring Technical Guide Book:  The Oregon Watershed Enhancement Board's guide was developed to provide guidance on designing monitoring strategies and to provide standard water quality monitoring protocols. The Guide Book has the following chapters: Background, Monitoring Strategy and Plan, Selecting Sites, Data Quality, Data Storage and Analysis. Protocols have been developed for; Stream Temperature, Dissolved Oxygen, pH, Conductivity, Nitrogen and Phosphorus, Turbidity, Stream Macroinvertebrates, Pesticides and Toxins. Additional chapters will be developed and added to the Guide Book.

 

 

 

 

                                                       

 

 

 

 

 

 


                                    
                                                     
                                                           
                                                      
                     
                                 
                                      
                                 

Devils Lake Water Improvement District PO BOX 974, Lincoln City, OR 97367 Email: paul@DLWID.org Call: (541) 994-5330 Fax: (541) 994-6040

 

 

 

 

 

 

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