HomeMy WebLinkAboutGHD East Hill Water Improvements 2018u
East Hill Water System Improvements
Town of Ithaca, New York
Nicholas Hyde PE I Project Manager - Water
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Town of Ithaca East Hill Water System Improvements
PIPE SIZE LEGEND:
41NCH
61NCH
8-INCH
141NCH
124NCH
161NCH
EAST HILL TANK (BOLTON POINT)
HUNGERFORD PUMP
STATION
HUNGERFORD TANK
SEER HILL RD
ff
HUNGERFORD WATER SERVICE AREA
PINE TREE TANK
/ � �— PINE TREE SERVICE AREA
3ENCY PUMP STATION << I
WATER SERVICE AREA BOUNDARY
\ I
`t
Town of Ithaca East Hill Water System Improvements
East Hill Water System Improvements
Regulatory requirements
• Minimum system pressure, normal conditions: 35 psi
• Minimum system pressure, during fire: 20 psi
• Maximum system pressure: 100 psi
• Minimum fire flow for hydrants: 500 gpm
Additional Town goals
• 1,500 gpm fire flow for all hydrants
• 3 days of storage in water tanks
P"
bNow
Town of Ithaca East Hill Water System Improvements
Existing system pressure (average daily demand)
H
x Coding Legend
ion: Pressure (psi)
<= 20
<= 34
<= 40
<= 60
<= 80
<= 100
<= 150
Other
a;
Town of Ithaca East Hill Water System Improvements
Existing system pressure (peak hour demand
Color Coding Legend
fiction: Pressure (psi)
<=
20
K
34
<=
40
<=
60
<=
80
<=
100
<=
150
Other
Town of Ithaca East Hill Water System Improvements
Existing system estimated
(maximum day demand)
available fire flow
Color Coding Legend
Hydrant Fire Flow (Available) (gpm)
<=
500
<=
1,000
<=
1,250
<=
1,500
<=
1.750
<=
2,000
<=
2,250
<=
2,500
<=
2,750
3,000
<=
3250
<=
3.500
<=
3.750
<=
4,000
<'
8,000
*'
T-Main Hydrant
Town of Ithaca East Hill Water System Improvements
Additional Demands - Pine Tree
0
Maplewood Apartments 611 beds 43,825
East Hill Village Apartments
Strawberry Hill Rd
Townhouses
Park Lane Homes
6-Mile Creek Vineyard
Homes
Slaterville Road Homes
Total Additional Demand
Existing Demand
2,000 beds
46 units
17 houses
10 houses
20 houses
Total Future Demand, Pine Tree Service Area
150,000
8,280
3,060
1,800
3,600
213,000
1389000
3515000
Town of Ithaca East Hill Water System Improvements
System pressure (future peak hour demand)
r-
MEN
Dolor Coding Legend
Junction: Pressure (psi)
<= 20
<_ 34
<= 40
<= 60
<= 80
<= 100
<= 150
Other
Town of Ithaca East Hill Water System Improvements
Estimated available fire flow (future maximum day
demand)
H
Color Coding Legend
Hydrant Fire Flow (Available) (gpm)
<=
500
<=
1,000
<=
1,250
<=
1,500
<=
1,750
<=
2,000
<=
2,250
<=
2,500
<=
2,750
T
<=
3,000
<=
3,250
<=
3,500
<=
3,750
<=
4,000
<=
8,000
T-Main Hydrant
Town of Ithaca East Hill Water System Improvements
Summary of Findings
Pine Tree, Pine Tree,
Hungerford Existing Future
.j Demands Demands
Minimum 35 psi, all services
1,500 gpm availble, all hydrants
3-Days of water storage
(1) There are four homes with less than 35 psi.
(2) All but three hydrants.
No' Yes Yes
Nearly2 No No
Yes No No
V" Town of Ithaca East Hill Water System Improvements
Hungerford Potential Improvements
Goal: Meet minimum system pressure requirements. Reduce maximum
pressures
• Raise elevation of Hungerford tank by 10 feet
Move high pressure services (A 00 psi) to Pine Tree System
• Install watermain connection down Park Lane to Slaterville Road
`� Town of Ithaca East Hill Water System Improvements
Hungerford Potential Improvements
PIPE SIZE LEGEND:
4-INCH
6INCH
64NCH
104NCH
124NCH
164NCH
NEW 64NCH
H
\ . x HONNESS RD 1i \
` Ir.
t�
PINE TREE PRV
I
I
EAST HILL TANK (BOLTON POINT)
HUNGERFORD PUMP
STATION
PLACE HUNGERFORD TANK WITH
,LLER TANK (O.F. ELEVATION +/-1,322')
_I
I— HUNGERFORD SERVICE AREA
r q`
r
SmDER HILL RD
CLOSE EXISTING ISOLATION
VALVE (TYPICAL)
PINE TREE TANK
NEW SERVICE AREA
BOUNDARY
REGENCY PUMP STATION
WATER SERVICE AREA BOUNDARY 1 `� PINE TREE SERVICE AREA
ti
Town of Ithaca East Hill Water System Improvements
i
Pine Tree - Storage Improvements
Goal: Provide 3 days of storage
• Replace existing Pine Tree Tank (200,000 gallons) with one or two larger
tanks.
• Install one 600,000 gallon tank now.
• Add second 400,000 gallon tank later for East Hill Village development.
Desired
Average Daily Storage
Demand • • •
• •
Existing Conditions 138,000 400,000
Future Demands (excluding East Hill Village) 201,000 6007000
Future Demands (including East Hill Village) 351,000 1,050,000
0
Town of Ithaca East Hill Water System Improvements
Pine Tree - Fire Flow Improvements
Goal: Provide 1,500 gpm fire flow at all Town hydrants
• Strategic watermain replacements to improve fire flow
1110" Town of Ithaca East Hill Water System Improvements
— - - _
Pine Tree Potential Improvements
I zl 0
II
DI Z
I
PINE TREE PRV I
I �LUSyatoWRo I EAST HILL TANK (BOLTON POINT)
HUNGERFORD PUMP
STATION
—1 I HUNGERFORD TANK
_�x HONNESS RD
HUNGERFORD SERVICE AREA
SNYDERHILLRD
PIPE SIZE LEGEND: ` <\ I
4-INCH \
&INCH _________ PINE TREE TANK(S)
8-INCH
10-wcH
124NCH REGENCY PUMP STATION
16MCH � I
NEW &INCH
NEW 724NCH �
WATER SERVICE AREA BOUNDARY ; PINE TREE SERVICE AREA
,^
`� Town of Ithaca East Hill Water System Improvements
Water Storage tanks
Concrete
Bolted Steel
Photo Credit: CST Industries (Aquastore)
Town of Ithaca East Hill Water System Improvements
Pine Tree Improvements system pressure (peak hour
demand)
GHD
x Coding Legend
;ion: Pressure (psi)
<= 20
<= 34
<= 40
<= 60
<= 80
<= 100
<= 150
Other
Town of Ithaca East Hill Water System Improvements
Pine Tree Improvements
(maximum day demand)
MD
estimated available fire flow
Cola Coding Legend
Hydrant: Fire Flow (Available) (gpm)
<= S00
m 1,000
<= 1,250
<= 1,500
<= 1,750
<= 2.000
<= 2,250
<= 2,500
T
<= 2,750
.k;:
— 3,000
r- 3250
<= 3,500
<= 3,750
— 4,000
<= 8,000
T-Main Hydrant
Town of Ithaca East Hill Water System Improvements
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