20072008 Operations

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2007-2008 Operations Utility Report

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Mission Statement

• The mission of Rancho Murieta Community Services
  District Operations and Utility Departments is
  to take a leadership role in responding to the
  needs of the residents. The District will deliver
  superior community services, efficiently and
  professionally, at a reasonable cost to sustain
  the enhanced quality of life the community
  desires.

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Topics of Discussion

• Staff
• Facilities
• Granlees raw water diversion and pumping station
• Storage Reservoirs Calero, Chesbro, Clementia
• Dams and Dam subdrains
• Water Plant
• Wastewater Reclamation Plant
• Sewer Collection System Storm water pumping
  stations
• Drainage and drainage basins
• Capital Improvement Projects (CIPs) Completed
• Projects completed

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RMCSD Field Operations Staff

• Operations
• Utility
• Maintenance

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Field Operations Staff Organization
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Operations Staff
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Utility Staff
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All Field Operations Staff
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Arial photo of Rancho Murieta
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Granlees Pumping Diversion Station
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Granlees Pumping Diversion Station
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Granlees Pumping Diversion Station

• RMCSD diverts water from the Cosumnes River from
  Nov.1-May 31st of each year for raw water
  storage. Amounts and times vary depending on
  river levels.
• 2006-2007 Pumping Season Total 818.32 MG /
  2511.5 Ac.ft.
• Started filling Calero with level at -15.07 ft.
  Dec.11, 2006
• 2007-2008 Pumping Season so far 2182.6 Ac.ft.
• Started filling Calero with level at -13.07 ft.
  Dec.19, 2007
• There are 14 separate water rights that provide
  water to the area from the Cosumnes River, mostly
  for diversion during the winter months.

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Cosumnes Irrigation Association(CIA) Ditch
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Arial PhotoofRaw WaterStorageReservoirs
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Raw Water Storage Reservoirs

• Calero
• 2630 Acre feet of Storage
• Fed from Granlees pump station. Gravity feeds
  when level is high to Chesbro or is siphoned when
  level is lower
• No body contact or gas motors are allowed
• Chesbro
• 1130.7 Acre feet of Storage
• Gravity feeds the Water Plant for water
  production
• No body contact or gas motors are allowed
• Clementia
• 907 Acre feet of storage
• Body contact allowed, gas motors are not allowed
• May be pumped to Water plant as an emergency
  water source

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Raw Water Storage Reservoirs

• Each Reservoir contains its water within dams
• Each dam must be monitored and maintained as per
  the Department of Water Resources - Division of
  Safety of Dams (DSOD)
• Maintenance includes no trees or brush growth on
  dam faces and a rodent control program
• Subdrain pump stations pump water away from foot
  of dam. Pump station flows are monitored for
  DSOD.
• Both are utilized to maintain dam integrity
• Piezometers to monitor seepage levels through the
  dams
• Annual settlement surveys
• Both are used to detect potential failures in Dam

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Calero Influent
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Calero Main Dam
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Dam Subdrains
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Calero Subdrain Pump Station
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ClementiaDamSubdrainpump
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Calero Siphon Pump Station
These pumps are used to fill the transfer line
from Calero to Chesbro when Caleros level drops.
Once the line is filled and the valve at Chesbro
is opened, it allows it to pull a siphon and the
pumps can be shut back off.
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Water source for RMCSD Water Plant
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Aeration in lake Chesbro is used to keep the
reservoir mixed oxidize Iron and/or Manganese
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Water Treatment Plant
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Water Treatment Plants

• Original facility consisted only of chlorination
  of raw water
• Plant 1 Convention Filtration Plant capable of
  producing 1.5 million gallons a day (MGD)
• Began Operation in 1975
• Plant 2 Convention Filtration Plant capable of
  producing 2.0 million gallons a day (MGD)
• Began Operation in 1988
• Both Plants were retrofitted in 1995 to meet new
  surface water treatment rule requirements

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Water Production

• 1979.51 Ac.ft. of water was produced in 2007 vs.
• 1938.03 Ac.ft. in 2006, with 13 more connections
  in 2007.
• Yearly Totals

Year Jan. Feb. March
April May June July
August Sept. Oct. Nov.
Dec. Total MG Ac.ft.
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FlashMixerInfluentDrumScreen
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WaterPlant 1SedimentationBasin
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Plant 2 Sedimentation BasinafterCleaning
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Plant 2FiltrationRoom
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Plant 2 Effluent Pumps Alternative Water
Supply line
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Rio Oso1.2 Million GallonWaterStorageTank2003

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Rio OsoTankMay 2005
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Van Vleck 3.0 Million Gallon Tank
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WaterSystemPressure Gravity zones

• Units 3 4 in the North are fed by the Rio Oso
  booster pump station, indicated by dark blue
• The rest of the District is gravity fed by the
  elevation of the Van Vleck tank, indicated by
  light blue

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Water Quality
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Wastewater Treatment System Overview

• A series of five ponds treats approximately
  500,000 gallons a day of raw wastewater
• Treated wastewater is stored in two reservoirs
  until needed for reclamation use by RMCC during
  summer months
• Stored secondary treated wastewater is pumped
  through a DAF system and then filtered,
  disinfected with chlorine and supplied to the
  golf courses for irrigation

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WASTEWATER RECLAMATION PLANT PERFORMANCE

• To comply with Title 22 requirements, the plant
  produced effluent with a turbidity that did not
  exceed 1.0 NTU for any 24-hour period throughout
  the year, usually averaging 0.55 NTU per day.
  Tertiary effluent was produced with no coliform
  violations, and an average pH of 6.7. The main
  control for both plants was set up to shut off if
  turbidity exceeded 2 NTU or if the chlorine
  residual dropped below 5 mg/L. BOD removal has
  been in the order of 87, with influent BOD
  averaging 214 mg/L and secondary effluent BOD
  averaging 25 mg/L. The coliform results were lt2
  MPN for nearly all of the samples and did not
  exceeded the monthly median of 2.2.
• The Emergency Use Permit for the Van Vleck
  Recycled Water Irrigation Project allowed the
  District to achieve enough wastewater reclamation
  use to affectively lower it secondary wastewater
  storage below 100 Ac-Ft. in the fall of 2007.

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Tertiary Treatment Plant
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East DAF (Dissolved Air Floatation)
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Sand Filter
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Water Quality MonitoringBackwash Pumps
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Filtered Tertiary Effluent into Equalization Basin
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Reclaim Water Pumps
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Reclaimed Water flow into Bass Lake
590.82 Ac.ft of reclaimed water was supplied in
2007 to the RMCC for irrigation
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Reservoir 2 at end of 2007 Reclamation Season
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Sewer Collection System
11 Sewer Pumping Stations

• Main Lift North
• Cantova
• FAA
• 6B
• 6A
• 3B
• Alameda
• Starter Shack
• Main Lift South
• Crest
• Greens

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Main Lift North (MLN)
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Main Lift North Information

• Recent Average Monthly flow of 345,000 gallons
  per day
• It is a force main Lift Station pumping directly
  to the Wastewater facility
• Automated back up generator for emergency power
  which is shared with the neighboring Fire Station

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Main Lift South (MLS)
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Main Lift South Information

• Recent Average Monthly flow of 140,000 gallons
  per day
• It is a force main Lift Station pumping directly
  to the Wastewater facility
• A Storm Water pumping facility is also on site
• Automated back up generator for emergency power

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MLS Storm water Pumps
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6B Sewer lift station
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6B Sewer Lift Station facts

• It is a force main pump station feeding directly
  to the wastewater plant
• Recent Average flow is 17,000 gallons a day
• Has automated generator back up power through a
  connection to a portable generator, which also
  serves as back up for 6A station

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3B Sewer Lift Station
New Control Panel installed has reduced callouts
by over 90
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Cantova Sewer Lift Station
New Control Panel installed has reduced callouts
by over 85
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FAA Storm Water and Sewer Lift Station
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FAA Storm Water Pumps
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Drainage
System includes 13 miles of open ditches, several
water quality detention basins, and two storm
water pumping stations.
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Drainage basin
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Greens drainage
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Capital Improvement Projects

• Completed
• Surveillance Cameras/600G DVR system for WTP
• Repair of Sewer line on Guadalupe Drive
• Computerized Maintenance Management Software
  (CMMS) on RMCSD Network
• Main Lift South Diesel tank replacement
• VanVleck Reclamation project
• Dam Maintenance and road grading Calero,
  Chesbro, Clementia, and around Wastewater
  Reservoirs
• Alternative Water Supply to Replace Rio Oso water
  storage

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Van Vleck Reclamation Project
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New above ground diesel storage tank at MLS
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Installation of Alternative Water Supply Line
from VanVleck Tank to Rio Oso
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Projects completed

• Repair of West DAF rake arms, gear box and drive
  motor, rim, backpressure valve, epoxy painted
  inside of DAF and Filter cells, replace filter
  cell float switches, replaced bad solenoids, WWRP
  air control valves, service compressors, (kept
  facility running without fault through
  reclamation season)
• RioBlanco/9 Park Storm Drain line replacement
• Load Tested Generators MLN, MLS, WTP
• Installed UPS backups for WTP 1 2 and RioOso
  booster station PLCs to prevent instrumentation
  signal loss during power spikes or outages
• Reestablished automatic function of MV-3 valve by
  installation of a radio transponder for
  transferring reclaimed water to RMCC
• Rehabilitated Chesbro, Calero main subdrain pump
  stations
• Installed sewer manhole inserts to prevent I/I
• Manhole repairs/ sealing to prevent I/I
• Zero Read/ Meter repairs (over 250)
• MXU Radio Read replacements
• Installed 120 of 24 storm drain pipe
• Placed cobbles around storm water basins in South
• Rehabilitated two of the seven drying beds at the
  Wastewater Plant
• Aquatic Plant control at Chesbro Lake
• Replacement of coagulant feed lines at Water
  Treatment Plant
• Installation of caustic tank and feed system at
  Water Treatment Plant for pH and corrosion
  control

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Wastewater Sludge Drying Bed Rehabilitation
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WWRP Drying sludge drying bed repair
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• CIP Projects in Process
• Rio Oso Tank Rehabilitation and Painting
  (Requires daily oversight until completion)
• Main Lift North Pump replacement
• Dam Maintenance and Road Grading (Finish Michigan
  bar dam road repair around Res.2, Clementia, and
  Chesbro)
• Storm Water NPDES permit
• Wastewater Reclamation NDPES permit
• Piezometer Replacement Plan
• Headworks design
• Distribution Sampling Stations (re-evaluating
  bids/ station locations)
• New Utility Truck
• Sludge removal from wastewater ponds

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Sludge Removal from Pond 1 to Drying Beds
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Goals

• Continue meeting goal of mission statement
• Continue preventative maintenance
• Cross Train and Retain Staff
• Utilize Computer Maintenance Management Software
  to track and schedule maintenance history

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Thank you

• With the continued support of the Board and Staff
  we will continue to make improvements and keep
  the District with a high standard of Service and
  Operation.