MINUTES OfA SPECIAL MEETING WORKSHOP OfBIG BEAR MUNICIPAL WA TER DISTRICT

HELD ON WEDNESDA Y, JULY 20, 2016

President Brewster called the Open Session to order at 10:00 AM. Those in attendance includedDirector Ludecke, Director Lewis, Director Eminger, Director Smith, General Manager MikeStephenson, Lake Manager James Bellis, and Board Secretary Vicki Sheppard.

Mr. Stephenson presented a Power Point, Proactive Approaches to Long Range Solutions (seeattached)

Mr. Stephenson reported on TMDL (Total Maximum Daily Load) explaining it is a regulatoryterm in the clean water act describing a value of the maximum amount of a pollutant that a bodyof water can receive while still meeting water quality standards. He covered all of the 3 03(d)metals listed (past and current) including arsenic, chromium, lead, zinc, mercury, nickel, andcadmium. He also explained other 3 03(d) listings including selenium, copper, and sedimentationsiltation adding that Big Bear Lake was delisted in 2010. He covered other listings such asphosphorus reporting that Big Bear Lake remains on the 303(d) list for nutrients. Mr. Stephensonreported on noxious aquatic plants explaining that Big Bear Lake is required to eliminate 95% ofthe noxious aquatic plants and maintain 30% of the lake’s surface with naturalized and nativespecies. He added that Big Bear Lake remains on the 303(d) list for noxious aquatic plants. Hereported on mercury explaining that 93% of available mercury found in Big Bear Lake is mostlyfrom global emissions. He added that an expert panel is being created to help formulate responsetarget numbers and actions. Director Ludecke asked what the punishment is for not complyingwith TMDL rules. Mr. Stephenson reported that, to his knowledge, no one has been punished fornot conforming to TMDL regulations adding that he has a problem with a blanket 3 03(d) rulebecause every lake is different.Mr. Stephenson reported on cloud seeding explaining that the cost benefit is unknown and thereis potential liability downstream for unintended flooding. He explained that in 2004 the RegionalBoard shut us down on our proposal to cloud seed. He added that now many areas are doingcloud seeding using drones. Director Ludecke stated that Los Angeles DWP is taking themoisture out of our clouds with their extensive cloud seeding. President Brewster stated that he isvery interested in increasing the lake level and if other agencies are cloud seeding we should dowhat we can. Director Ludecke explained that no quantitative figures have been found regardingthe benefits of cloud seeding adding that it is a big roll of the dice. President Brewster asked ifadditional valley municipalities expressed interest in this subject. Mr. Stephenson explained thatthere were no specific comments from other agencies. Director Smith stated that we can’tquantify the cost vs. benefit success of cloud seeding. He added that we aren’t liable if floodingoccurs due to Mother Nature but we could potentially be liable if we did something to make thevalley flood. Mr. Stephenson reported that if we do something that contributes to flooding wecould be held responsible. He added that silver iodide is a pollutant and it is used in cloudseeding. There were a number of comments from members of the public and the Directorsregarding the pros and cons of cloud seeding and not waiting until it is too late to address the lowlake level problem. President Brewster stated that we have a responsibility to stabilize the lakeand get the level up adding that he is all for cloud seeding and is afraid where we might be in ayear if nothing is done. Mr. Joseph Kelly, Big Bear Airport, said he is concerned about using

drones and what impact it might have on the airport. Mr. Darrell Mulvihill commented that inthe past he attended a meeting in Northern California and met with people using cloud seedingexplaining that what stopped the City and C$D from pursuing it was there seemed to be no wayto control the amount of water we received. Director Eminger commented that we were ready todo it in 2004 because it had been successful in other places and it was worth a try but we wereshut down. Mr. Stephenson reported that other agencies are curious about today’s cloud seedingtopic but made no definitive comments prior to this meeting. He explained that it is up to theBoard of Directors what direction we take and it will be discussed in Lake ImprovementCommittee in the very near future.Mr. Stephenson discussed the lake wide dredging program. He reported on the meeting that heand Lake Manager James Bellis had with the Army Corps of Engineers on July 1 3th at the LosAngeles Regional office regarding routine maintenance projects. He reported that the ArmyCorps recommended starting with ACOE permits (no need to complete an EIR before applyingfor ACOE permits). He added that the best permit option was a 10 year standard individualpermit. He explained that we would identify key necessary dredging locations and describepossible maintenance dredging projects. Mr. Stephenson explained various dredging methods. Hereported that when we move dirt we need to let ACOE know where we are moving the dirtadding that they don’t want any islands built. President Brewster stated that he has a majorconcern because he feels we need neighborhood dredging projects and he thought going toACOE would help with the ability for private parties to dredge smaller areas. Mr. Stephensonexplained that this will cover smaller projects and make the process for approvals simpler forindividuals. He added that they will be able to do baseline projects.

ADJOURNMENTThere being no further business, the workshop was adjourned at 12:02 PM.

Vicki SheppardSecretary to the BoardBig Bear Municipal Water District

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TOTAL MAXIMUM DAILYLOAD (TMDL)® A Total Maximum Daily Load (TM DL)

is a regulatory term in the U.S. CleanWater Act, describing a value ofthe maximum amount of a pollutant thata body of water can receive while stillmeeting water quality standards

® Big Bear Lake listed as an impairedwaterbody for various constituents overthe years. Impaired bodies of wateradded to the “303(d) list” 4J

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Big Bear Lake Past and CurrentTMDL 303(d) Listings® SEDIMENTATION/SILTATION

• Original reason for listing was based onWater Board’s judgement that sedimentsprovided a source of nutrients to Big BearLake.

• None of the 222 samples showed that thesiltation was due to controllable factors andBig Bear Lake was delisted in 2010

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Littoral Zone (-16 to -25 feet)

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At -16 ft., 37.35% of the lake’s surrace is littoral zone. Legend

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VBig Bear Lake Past and CurrentTMDL 303(d) Listings® MERCURY

• TMDL requirements currently being formulated and303(d) list continues to grow

• 0.3 ppm target reduced to 0.2 ppm target in fish flesh• Atmospheric deposition (mostly from global

emissions) contributes 93% of available mercury foundin Big Bear Lake.

• Natural occurrences and old legacy loads (local runoff)from gold mining contributes 7% of available mercury

• Addition of Big Bear Lake to the 303(d) list for mercury ispending.

• TMDL response actions have not yet been identified.• An ‘Expert Panel’ is being created to help formulate

response target numbers actions

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How Cloud Seeding Works2 The sikr iGthde 3 The silvt lodtde c.uses

prbels risc’ into cloud moisture to freezethe clouds and create Ice crystals

l.A minute amount of slIver 4 Ice crystals grow bigvttt’ Is sprayed across a enough to fall as snowpropane flame -

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LAKEWIDE DREDGINGPROG RAM

Met with Army Crops of Engineers July 13, 2016 at the LosAngeles Regional Office for direction on a “LakewideMaintenance Dredging Program” covering routine maintenanceprojectsArmy Corps recommended:• Start with ACOE permits; no need to complete an EIR before applying

for ACQE permits• Best permit option: 70 Year Standard Individual Permit• Identify key necessary dredging locations

Focus on navigational location beneficial to public use• Describe Maintenance Dredging Projects

Focus on minimizing impacts to wetland/biologically sensitive areas“Delineate” proposed dredging locations and designate “baselines” -

Historically ideal contoursDesign & Engineering — Plans showing “delineation” of current andproposed “baseline” elevations• Focus on mitigation opportunities, keep disturbed areas Umarginat

• Quantify amounts to be removed• Where dredged material will be dewatered and permanently st

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Stanfleld Cutoff Connectivity ProjectProposed Plan view:

NO1tNew park:ng and roadwayabgnmentwrthm misting roadwayto be porfermed by otbert cederseparate contract and is not a partof thiS grant appboation

Stanfield Cutoff Connectivity ProjectProposed Cross Section:

New guardrail 1,100 feet

New concrete reinforced riprap embankment. 800 yards

New 3” thick by 15 foot wide asphaltsurface to create a 12’ wide Class Imined use pedestilan/blhe path witha 3’ paned shoulder, t27,000 of Ac)

New 1’ wide by 2’ detpConcrete flush curb1,800 feet in length Eoistrng guardrail

Protected in place

Shoulder behind guardrail, sawCut and reduced toO’ wide

reinforced rip-rapembarkment leftin place

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