Lakes Descriptions and Data
Aquatic Plants
Fact Sheets
Lakeside Living Video
Lake Steward Newsletter
Recreation Guide
Reports
Technical Assistance and Questions
Glossary
Welcome Lake
Go to another lake:
Alice
Allen
Ames
Angle
Beaver-1
Beaver-2
Bitter
Boren
Burien
Clark
Cottage
Deep
Desire
Dolloff
Echo-Shoreline
Echo-Snoqualmie
Fenwick
Fivemile
Forbes
Francis
Geneva
Grass
Green-1
Green-2
Haller
Hicks(Garrett)
Horseshoe
Jones
Joy
Kathleen
Killarney
Langlois
Leota
Lucerne
Marcel
Margaret
McDonald
Meridian
Mirror
Morton
Neilson (Holm)
North
Panther
Paradise
Peterson Pond
Pine
Pipe
Ravensdale
Retreat
Sawyer
Shadow
Shady
Spring
Star
Steel
Trout
Tuck
Twelve
Walker
Walsh
Webster
Welcome
Wilderness
Yellow
Watershed Area
573 acres
Lake surface area
17 acres
Maximum depth
Not Available
Mean depth
Not Available
Public Park
No
Boat Ramp
No
Fish Present
Not Available
Volunteer monitoring began at Welcome Lake in 1996 and continued through 2008, after which it was discontinued. The data indicated this lake was medium in coloration and moderate in primary productivity (mesotrophic) with good water quality. Productivity decreased from 1996 through 2002, but may have increased since then.
Profile data suggested that thermal stratification was not stable through summer, and phosphorus concentrations did not build up in deep water. Nitrogen to phosphorus ratios remained above 20:1 through summer, which indicate that other algae may be favored over bluegreens.
Welcome Lake has no public access boat launch, but residents should watch for Eurasian milfoil, as well as other noxious weeds.
Back to top
This bathymetric map shows contour lines of equal depth, similar to a topographic map would for mountains and valleys
This map shows the area of the watershed relative to the area of the lake. Generally speaking, the larger a watershed is relative to a lake, the greater the influence land use practices on lake water quality
Click image to enlarge
Back to top View or Download Data Use this tool to view or download data from the lake in tabular format. You can
define date ranges and select which parameters to view or download. Chart Data Use the charting tool to look at graphs showing single parameters for a single
water year at a time. Five year water quality trends
A common method of tracking water quality trends in lakes is by calculating
the “trophic state index” (TSI) (Carlson, 1977). TSI indicators predict the biological
productivity of the lake based on water clarity (Secchi) and concentrations of total
phosphorus (TP) and chlorophyll a (Chlor).
The average of these three TSI indicators during the growing season can be used
to place lakes in one of three broad categories:
Back to top Back to top
