Public Utilities Department City of Delaware, Ohio 2010 Delaware ...

Public Utilities Department
City of Delaware, Ohio
2010 Delaware Citizens Academy
April 15, 2010
Upper Olentangy Water Reclamation Center

Public Utilities Department
2010 Delaware Citizens Academy
April 15, 2010
6:00 – 8:00 PM
Agenda
1. Welcome/Introductions
2. Powerpoint Presentation of Department
3. UOWRC Tour
4. Questions and Answers

Department Overview
Delaware Utilities History
Administration/Staffing
Utilities Operations
Major Projects
Future of Delaware
Utilities

City of Delaware Utility
Infrastructure
175 Miles of 24”-2” Water
Mains.
1,780 Fire Hydrants.
155 Miles of 66”-8” Sanitary
Sewer Gravity Mains.
3,125 Manholes.
5 Miles of Sanitary Sewer
Force mains.
12 Sanitary Sewer Pump
Stations.
130 Miles of Storm sewers.

City of Delaware Water Plant
1889 - Original water plant
constructed. Privately owned.
Gravel bed filtration for river
water. 16” inch transmission
line (2010- main is still in
service).
1923 – Upgraded filtration and
treatment plant constructed.
1936 – City of Delaware
purchased the Delaware Water
Company ($560,000).
1950 – Improvements to the plant including the conversion to electric
pumps.
1960 – Second 16” transmission main was constructed.
1974 – Water Treatment Plant expanded from 3 MGD to 6 MGD.
2004 – WTP filters were rebuilt to meet OEPA turbidity regulations.

City of Delaware Ohio Wastewater Plant
1902 – First WWTP (Septic
tanks & contact filters).
1926 – Expansion and
upgrades to plant. Primary &
Secondary treatment. 3.6 MGD
design to serve a population of
14,500 ($202,500)
1972 – Clean Water Act.
Upgrade up plant including
chlorine for disinfection.
1986 – Plant expansion from
3.6 MGD to 5.5 MGD
($7,500,000).
2007 – Plant expansion from
5.5 to 10 MGD ($22,000,000).

Public Utilities Department Staff
7 Divisions – 35 Employees
Administration
Wastewater Treatment
Sewer Collection
Storm Sewer
Water Treatment
Water Distribution
Watershed Management

2010 Water Fund Budget
Total Revenue = $3,579,500
• Majority is Meter Charges = $3,500,000
Total Expenditures = $3,577,115
• Majority is Administrative = $1,424,478
• Treatment (chemicals, electric …) = $1,315,979
• Distribution = $836,658

2010 Sewer Fund Budget
Total Revenue = $5,957,500
• Meter Charges = $4,200,000
• Capacity Debt = $1,575,000
Total Expenditures = $5,940,744
Total Expenditures = $5,940,744
• Administrative = $3,721,318
• Treatment = $1,689,438
• Collection = $529,988

2010 Storm Sewer Budget
Total Revenue
• Storm Sewer Fees = $755,000
Total Expenditures = $1,874,793
• Operations = $269,793
• Projects = $1,605,000
• South Sandusky Street Culvert = $1,200,000
• Cherry Street Storm Sewer = $200,000

Administration
Administration of Public
Utilities Divisions
Project/Budget Planning
and Implementation
Regulatory Compliance
City Ordinance
Enforcement
Safety and Professional
Training
CMMS Management &
Training

City of Delaware Service Area
Water Service Area
Agreement with
DEL-CO Water
Company.
Sanitary Sewer
Agreement with
Delaware County.

Wastewater Treatment
Plant Design – 10 MGD
Average – 4.5 MGD
Peak – 30 MGD
Plant is staffed 24/hrs day,
365 days year.

Wastewater Treatment Flow
Pattern (where “it” happens)

Wastewater Collection
Closed Circuit TV Inspection
Manhole repair/replacement
OUPS locates
Sewer cleaning
Sewer line
repair/replacement
Pump station maintenance
Sewer main root treatment
Sewer main grout/sliplined
Sewer lateral inspection

Storm Sewer
Catch basin
repair/replacement
Storm sewer main
repair/replacement
Storm sewer manhole
repair/replacement
OUPS locates
Catch basin cleaning
TV inspections

Water Treatment
Plant Design 6 MGD
Peak 5.5 MGD
Two – 1-million gallon tanks, One – 2-million
gallon tank.
Chemicals used
• Lime – Remove carbonate hardness 975
tons/yr ($123,000 yr)
• Alum – coagulation 200 tons/yr ($68,000)
• Carbon – Atrazine & nitrates 35 tons/yr
($88,000)
• Fluoride – reduce tooth decay 33,000
lbs/yr ($15,000)
• Carbon dioxide – Lower pH 85 tons/yr
($7,000)
• Chlorine – Disinfection 25 tons/yr
($13,000)
Plant staffed 24 hours/day, 365 days year

Current Treatment Flow Pattern

New Flow Pattern & Layout

Water Distribution
Fire hydrant repair/replacement
Water main repair/replacement
Service line installation/repair
Water valve, meter installation
Meter installation, repair
Hydrant flushing, flow testing
OUPS locates
Meter reading: 11,400 accounts
20-24 service requests per day
Water main breaks likely to occur:
• Frigid weather – most common time for
main breaks, when both air and water
temperatures can contribute to breaks.
• Hot, dry weather – second most frequent
time. Shifting ground and increased volume
and pressure can stress water mains.

Watershed Management
Upper Olentangy River
Watershed – Approximately
430 square miles in portions
of Crawford, Delaware,
Marion, Morrow and
Richland Counties.
River clean-up events
Promote ‘Best Management
Practices’
Catch basin stenciling
program – “Don’t
Pollute/Drains to Streams”
ODNR Litter Clean-up Grant
Public Education Events

Upper Olentangy River
Watershed

Public Utilities Projects
Penry Road Wellfield - $370,000
Coover Road Water Line -
$1,145,130
16” Kingman Hill Water Line -
$2,326,650
2 MGD Cheshire Road Water
Storage Tank - $3,915,000
Joy Avenue Storm Sewer -
$400,000
North Washington Street Storm
Sewer Improvements $350,000
SE Highland Sanitary Sewer -
$18,000,000
Wastewater Treatment Plant
Expansion - $22,000,000
Curtis Street Water Main & Storm
Sewer Improvements - $420,000

Public Utilities Upcoming
Projects
24” Hills Miller Road Water
Main - $4,200,000 (2010)
Penry Road Raw Water Line
- $1,685,000 (2010)
4 MGD Groundwater
Membrane Water Plant -
$12,600,000 (2011)
6 MGD Water Plant
Rehabilitation - $8,500,000
(2013)
500 MG Upground Reservoir
- $18,000,000 (2020)

Utility Fun Facts
59,000 public water systems in US; process over
35 billion gallons daily.
Average household uses 107,000 gallons of water
each year.
1,851 gallons of water to refine one barrel of crude
oil.
1,500 gallons of water to process one barrel of
beer.
Over 42,000 gallons of water are needed to grow
and prepare the food for a typical Thanksgiving
dinner for eight.
A leaking faucet can waste up to 100 gallons of
water a day.
Amount of toilet paper used every year in the
United States: over 22,500 square miles.
Domestic Wastewater
Sources
Toilets: 33 %
Washing: 26%
Bathing: 19.6%
Bathroom sink: 11.3 %
Kitchen sink: 5.8 %
Dishwasher: 2.5 %
Garbage disposal: 1.8%
Gallons of water flushed in the United States Daily: 5,000,000,000 (5 billion).
Amount of money spent every year on chemicals to make toilets smell better:
$10,000,000