2004-10-28_AgendaPacket - Laserfiche WebLink

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The Twin Cities Metropolitan Area {7CMA) is fortunate to have a large number of lakes. These lakes are important recreational, aesthetic, and ecological resources that add considerably to the quality of life and economic stability of the region. Protecting the water quality of our lakes is a significant citizen concern. This highly successfulprogram Inflects data on than 100 lakes each year through the efforts of trained, dedicated volunteers. 2003 marked the eie~~- enth year of the Council's volunteer program. Fifteen watershed management organizations, eight cities; two counties and two individual lake groups participated in CAMP in 2003, monitoring a total of 128 lakes, Combined with 12 lakes monitored by Council staff, a total of 140 area lakes were monitored in 2003. Most of this data collection effort focuses on assess ment of lake eutrophieation. Eutrophication is the prc cess of accelerated plant growth, particularly algae fueled by nutrient enrichment. Eutrophication is one ~I the leading water quality concerns facing the region. Nutrients in lakes ba e samples using aclean one-gallon plastic milk jug, The sample is split into two sub-samples, one for total phosphorus and total Kjeldahl nitrogen. Another sub-sample is withdrawn from the jug for chlorophyll-a and filtered on-site through a 0,45 micrometer glass-fiber filter using a manual filtra- tionapparatus The filter is then placed in the sample container and wrapped in aluminum foil. Many state and local h~ fil~f11~4~ The Metropolitan Council Is charged increase a v natural levels as agencies have a with developing a comprehensive regional development guide that a result of human role in managing minimizes the adverse impacts of growth, Including adverse impacts activities in the and monitoring {ake on the environment To help meet this goal. the Minnesota Legislature watersheds of lakes. water quality. The has mandated {Minnesota Statute 1t)3F721}the Council fo conduct an TCMA Algae growth than s Metropolitan Council assessment of the waters (lakes. streams, and rivers) in the operates the most that have been polluted or tha# have potential for water pollution increases and extensive lake caused by non-point urees. The monitoring data collected by the water clarity T Council and its panne , vs used to support regional planning efforts, decreases. A monitoring program in the region. This identify pollution pr ~ ar :meet federal and state regulations. variety of otl regional report card ~ prat ~m~ m a ~ ,-, - it-~-e~_ - summarizes the ~;, ': ~f ,. ~ la; ~ ~ ensue, inciu~'~ toning efforts fc~r 2001 ~~ (. ~s be. odor problems - taring lakes in ~ : ,<, r do `r ~ r ~,; ~ and . R >fU , _ ~ - ' ~ R _~ ~ ~r: is r 3(~ ~? r, S T t ~ ;;~~ is ~ ~ T E -- ~ N s., - =~ '~ ~ ~ ~, ;~,~ , .~. ~ ~ ` ~ i ~ \ I e >~a ~ t 1 Samples are then transported in a cooler and stored in a freezer until they are picked up and delivered to the laboratory for analysis. The routine chemical analyses are performed at the Metropolitan Council Environmental Ser- vices {MGES) laboratory following U S EPA approved methods. 27013700 Christmas Lake Shorewood 19044600 Lac Lavon Lake Apple Valley 20,6 3.8 15.1 A 82001400 Little Carnelian Lake Stillwater Twp 15.2 3.8 15.1 A 82004600 Square Lake May Twp. 112 3.0 19.7 A 82008000 Sylvan Lake Forest Lake Twp.. 15.4 3 3 15,4 A 27017002 Little Lang Lake Minnetrista 9.6 4.2 14.8 A 82015300 Sunset Lake Hugo 18.6 3.6 12.1 A 10000900 Minnewashta Lake Chanhassen 17.4 8.0 9.8 A 82005200 Big Marine Lake May Twp. 22.5 6.9 9.7 A 82010300 Q1son Lake Lake Elmo 17 2 10.5 10.2 A 8 F 4 f: ~- 'i~2 683 t4 F ,: ,. 1 ~~~ 3 ttC9 19 F ,e . _ 1 8t 2 1 8 F 2, ~ ,, : a. ~ Lake aple t 3 6 103.6 t 5 F 27012700 ~ u ~~; =Lake Dayton 283 7 92.1 1.1 F 10006900 Benton Lake Benton Twp 247,8 261.6 10 F 10006600 ~hnkler Lake Benton Twp 460,0 120.0 1 3 F ~ ~ ~ S[ ' sK ,.. C~ttt- - This is an abbreviation for micrograms per liter,. which is a way to descrit ~. ~:. is contained in a sample Ore ugiL is approximately equal to 1 part per ~~„ ~ - ` r' ~~ tad'a increase rt level in an Olympic-sized swimmer yr s ghtly less f i ~ an of table salt