Canyon Lake, a drinking water reservoir

Nancy C. Horton, Mayor Pro TemLESJWA DirectorSJRWC DirectorQVEC Director

Canyon Lake Dam

The basics383 acres13.8 miles of shoreline3 main beaches, additional smaller ones3 mile championship water ski course

(wakeboard, sky ski)Jump Lagoon water ski ramp2 marinas, 10 common dock areasConcrete dam 80 feet high, 510 feet wide

(1929) Dam height 1381.76 feet above sea level

Lake QualityCanyon Lake is considered impaired

according to the EPA regional standardsLevels of phosphorus and nitrogen must be

reduced to specific targets by 2020.Levels of dissolved oxygen must be increased

to desired targets by 2020.Benchmarks are to be in place by 2015,

showing progress to date and a plan for reaching the targets

Drainage culvert from QV

CLPOA Lake LeaseSince 1969, the CLPOA has paid an annual lake

lease to EVMWD which now costs $1,200,000 for 2011 for surface rights including swimming, fishing, and boating (body contact)

CLPOA operates the lake and provides treatments for algae, fish kill clean up, etc.

CLPOA operates two launch areas and 10 common docks

CLPOA marine patrol monitors the main lake and East Bay and issues citations for infractions

Salt Creek entering Canyon Lake

SedimentationEast Bay receives 3 inches a year on average

of sedimentation mostly through Salt CreekA dredging project was undertaken in 2003Goal was removal of 200,000 cu. ft.Operation of the dredge was sporadicActual removal: 20,000 cu. ft.Two lawsuits stopped the process in 2007

and the CLPOA sold the dredge, returning the money to LESJWA

When the water overflows the dam

Elsinore Valley Municipal Water DistrictOperates the damProcesses the water from Canyon Lake into drinking

water for the district’s customersCL reservoir provides 10% of district drinking water

supplyRemoves as much as 9 million gallons per day for

processing when the plant is operatingCan remove from 1381.76 feet above sea level to 1372

contractually but usually tries to maintain a level of 1375Buys water from MWD when necessary, not from the

Colorado Rover Aqueduct because of Quagga mussel issues

EVMWD Crew

Quagga Mussel ProgramEvery boat entering the gates must be inspected for

Quagga mussels as of June, 2010Cost of inspection: $20.00. The program costs the

CLPOA $76,000 per year.Wet boats or those from any other water body are red

tagged for future inspectionRed tagged boats may not be launched before inspectionBoats leaving for gas or tune-up only are sealed. If the

seal is unbroken they are not inspected.Two live cases so far. Owners cooperated fully.Number of inspections per year: 2583, quarantined

1275

Special EnforcementCL Special Enforcement patrols the main

lake and east bay by boat on holidaysCLSE patrols the North Ski Area by boat

every weekend and for special events.CLSE patrols the 800 acres of BLM land on

both sides of the North Ski area and the 60 acres around the Jump Lagoon for compliance on foot, on bicycle and by vehicle

Special Enforcement: traffic control

City NPDES responsibilityThe city of Canyon Lake is responsible for

NPDES complianceReported spills get immediate action from

Special Enforcement and contracted clean up companies

Citations are issued if the owner is uncooperative

Unreported spills are cited if the owner is eventually reported

No major spills on record

Rain Events2004-2005 rain event resulted in closing of

the lake from early December, 2004 to early March, 2005

Lake is posted for contamination after each event as a precaution per Health Dept.

Testing 72 hours after the last raindropTests conducted by lab at EVMWDSigns are removed after test results show no

contaminationLake closed by POA when debris is present

Holiday Harbor Launch Ramp

Salt Creek Flooding

Quail Valley Environmental CoalitionA 501 c 3 formed in 2010 to raise awareness of the

moratorium on building in Quail Valley, the public health threat from failing septic systems, the need for a sewer system in Quail Valley, and the importance of getting the 2006 SARWQRB moratorium on building lifted

QVEC works to further the plans of EMWD and the City of Menifee to sewer Area 4 and Area 9

QVEC strives to encourage the city of Menifee to get an emergency plan in place for winter rain events in QV

QVEC provides outreach for the QV community on public health and safety issues related to failing septic systems

Dr. Anderson’s AnalysisLake is stratified with the lowest stratum

anaerobicTo reduce phosphorus and nitrogen and

increase dissolved oxygen, he modeled the use of alum, aeration and oxygenation

The model that would get closest to targets would be oxygenation

Conceptual design of a HOS completed by PACE Engineering in 2010

Next StepsThe TMDL has possible options on what to do to

reduce nutrients in CL and no identified funds1. HOS for the main lake paid for by a credit

system for nutrient producers in the watershed2. The use of PHOSLOK, a chemical treatment

that binds phosphorus and captures it at the lowest layer of the lake strata

3. The East Bay will have to be dredged at some point.

The SARWQB will decide which approach will be approved

No diving, no jumping