Location: Zone 6, Culianan, ZC.
25-May-15 to 26-May-15
Given:
Line Pressure ( P )
Size of damage ( D)
Duration of leak (t)
= 10 psi
= 100 mm or 10 cm
= 21 hrs
Formula used :
P = ƴh ;
V²=(2gh);
Q= AV
Vol= Qt
Computation:
P = ƴh ;
10 lb/in2
h=
62.43 lbs/ft3
h=
h=
1ft
12in
3
276.79 in
23.06 ft
V²=(2gh);
[
V²= 2(32.2ft/s²)(23.06ft)
]
V=38.54 ft/s
A=
_πD²_
4
= π(10cm x in/2.54cm x 1ft/12in)²
4
A= 0.0845 ft²
Q= AV;
Q= 0.0845 ft² (38.54 ft/sec)
Q= 3.26 ft³/sec
Vol = Qt;
Vol = 3.26 ft³/sec (21 hrs x 3600 sec/hr)
= 246,456 ft³ x (1m/3.28 ft)³
Vol.= 6,984.22 m³
1ft
12in
3
Location: Fernando Compound, Sta. Maria, ZC.
31-Mar-15 to 01-April-15
Given:
Line Pressure ( P )
Size of damage ( D)
Duration of leak (t)
= 18 psi
= 50 mm or 5 cm
= 24 hrs
Formula used :
P = ƴh ;
V²=(2gh);
Q= AV
Vol= Qt
Computation:
P = ƴh ;
18 lb/in2
h=
62.43 lbs/ft3
h=
h=
1ft
12in
3
498.22 in
41.52 ft
V²=(2gh);
[
V²= 2(32.2ft/s²)(41.52ft)
]
V= 51.71 ft/s
A=
_πD²_
4
= π(5cm x in/2.54cm x 1ft/12in)²
4
A= 0.0211 ft²
Q= AV;
Q= 0.0211 ft² (51.71 ft/sec)
Q= 1.09 ft³/sec
Vol = Qt;
Vol = 1.09 ft³/sec (24 hrs x 3600 sec/hr)
= 94,176 ft³ x (1m/3.28 ft)³
Vol.= 2,668.82 m³
Location: Presa, Canelar (Perimeter Fence of KCC Mall Construction Site), ZC.
31-Mar-15 to 01-April-15
Given:
Line Pressure ( P )
Size of damage ( D)
Duration of leak (t)
= 6 psi
= 19 mm or 1.9 cm
= 72 hrs
Formula used :
P = ƴh ;
V²=(2gh);
Q= AV
Vol= Qt
Computation:
P = ƴh ;
6 lb/in2
h=
62.43 lbs/ft3
h=
h=
1ft
12in
3
166.07 in
13.84 ft
V²=(2gh);
[
V²= 2(32.2ft/s²)(13.84ft)
]
V= 29.85 ft/s
A=
_πD²_
4
= π(1.9cm x in/2.54cm x 1ft/12in)²
4
A= 0.00305 ft²
Q= AV;
Q= 0.00305 ft² (29.85 ft/sec)
Q= 0.091 ft³/sec
Vol = Qt;
Vol = 0.091 ft³/sec (72 hrs x 3600 sec/hr)
= 23,587.20 ft³ x (1m/3.28 ft)³
Vol.= 668.43 m³
Republic of the Philippines
ZAMBOANGA CITY WATER DISTRICT
Pilar st., Zamboanga City
ACCOUNTED WATER LOSS DUE TO PIPE DAMAGES
ZONE 6, CULIANAN, ZAMBOANGA CITY
TIME
DATE
start
DURATION
end
(hours)
LINE
PRESSURE
(psi)
5/25/2015
1:00 PM
12:00 AM
11.00
10
5/26/2015
12:00 AM
10:00 AM
10.00
10
FERNANDO COMPOUND, STA. MARIA, ZAMBOANGA CITY
TIME
DATE
start
DURATION
end
(hours)
LINE
PRESSURE
(psi)
3/31/2015
4:00 PM
12:00 AM
8.00
18
4/1/2015
12:00 AM
4:00 PM
16.00
18
PRESA, CANELAR (PERIMETER OF KCC MALL CONSTRUCTION SITE) ZAMBOANGA CITY
TIME
DATE
start
DURATION
end
(hours)
LINE
PRESSURE
(psi)
7/17/2015
1:00 PM
12:00 AM
11.00
6
7/18/2015
12:00 AM
12:00 AM
24.00
6
7/19/2015
12:00 AM
12:00 AM
24.00
6
7/20/2015
12:00 AM
1:00 PM
13.00
6
the Philippines
TY WATER DISTRICT
amboanga City
SS DUE TO PIPE DAMAGES
N, ZAMBOANGA CITY
VOLUME
cum
DAMAGE ITEM
100mmØ PVC Pipe at Zone 6,
Culianan, ZC.
TOTAL
3,658.40
3,325.82
6,984.22
STA. MARIA, ZAMBOANGA CITY
VOLUME
cum
DAMAGE ITEM
50mmØ GI Pipe at Fernando
Compound, Sta. Maria, ZC.
TOTAL
889.61
1,779.21
2,668.82
ALL CONSTRUCTION SITE) ZAMBOANGA CITY
VOLUME
cum
DAMAGE ITEM
102.12
19mmØ PE Tubing at Presa,
Canelar, ZC. (Only 1 water service
connection)
222.81
222.81
120.69
TOTAL
668.43
Location: Infront KCC Mall Construction Site
7-Nov-15
Given:
Line Pressure ( P )
Size of damage ( D)
Duration of leak (t)
= 20 psi
= 25mm x 450mm
= 12 hrs
Formula used :
P = ƴh ;
V²=(2gh);
Q= AV
Vol= Qt
Computation:
P = ƴh ;
Republic of the Philippines
ZAMBOANGA CITY WATER DISTRICT
Pilar st., Zamboanga City
ACCOUNTED WATER LOSS DUE TO PIPE DAMAGES
INFRONT KCC MALL CONSTRUCTION SITE
TIME
DATE
start
11/7/2015
1:00 AM
(hours)
LINE
PRESSURE
(psi)
12
20
DURATION
end
1:00 PM
he Philippines
Y WATER DISTRICT
mboanga City
SS DUE TO PIPE DAMAGES
CONSTRUCTION SITE
VOLUME
cum
DAMAGE ITEM
2.5CM X 45CM LONGITUDINAL
DAMAGE OF 150MMØ PVC
PIPELINE
TOTAL
8,081.13
8,081.13
Republic of the Philip
ZAMBOANGA CITY WATE
Pilar st., Zamboanga
ACCOUNTED WATER LOSS DU
ZAMBOWOOD, ZAMBOAN
TIME
DATE
start
DURATION
end
(hours)
LINE
PRESSURE
(psi)
11/27/2015
1:00 PM
12:00 AM
11.00
10
11/28/2015
12:00 AM
12:00 AM
24.00
10
11/29/2015
12:00 AM
12:00 AM
24.00
10
11/30/2015
12:00 AM
12:00 AM
24.00
10
12/1/2015
12:00 AM
12:00 AM
24.00
10
12/2/2015
12:00 AM
12:00 AM
24.00
10
12/3/2015
12:00 AM
12:00 AM
24.00
10
12/4/2015
12:00 AM
10:00 AM
10.00
10
COVARRUBIAS DRIVE, DIVISORIA, Z
TIME
DATE
start
DURATION
end
(hours)
LINE
PRESSURE
(psi)
12/11/2015
8:00 PM
12:00 AM
4.00
10
12/12/2015
12:00 AM
6:00 AM
6.00
10
2:00 PM
3:00 PM
1.00
10
Republic of the Philippines
ZAMBOANGA CITY WATER DISTRICT
Pilar st., Zamboanga City
COUNTED WATER LOSS DUE TO PIPE DAMAGES
ZAMBOWOOD, ZAMBOANGA CITY
h = P/δ
DAMAGE ITEM
Velocity
area
discharge
ft3/sec
(ft2)
100mmØ PVC Pipe at
Zamboowood, ZC.
23.07
1,485.44
38.54
0.0845
3.26
23.07
1,485.44
38.54
0.0845
3.26
23.07
1,485.44
38.54
0.0845
3.26
23.07
1,485.44
38.54
0.0845
3.26
23.07
1,485.44
38.54
0.0845
3.26
23.07
1,485.44
38.54
0.0845
3.26
23.07
1,485.44
38.54
0.0845
3.26
23.07
1,485.44
38.54
0.0845
3.26
TOTAL
COVARRUBIAS DRIVE, DIVISORIA, ZAMBOANGA CITY
h = P/δ
DAMAGE ITEM
Velocity
area
discharge
ft3/sec
(ft2)
50mmØ PE Tubing at Covarrubias
Drive, Divisoria
TOTAL
23.07
1,485.44
38.54
0.00305
0.118
23.07
1,485.44
38.54
0.00305
0.118
23.07
1,485.44
38.54
0.00305
0.118
VOLUME
ft3
VOLUME
cum
129,096.00
3,658.40
281,664.00
7,981.96
281,664.00
7,981.96
281,664.00
7,981.96
281,664.00
7,981.96
281,664.00
7,981.96
281,664.00
7,981.96
117,360.00
3,325.82
54,875.98
VOLUME
ft3
VOLUME
cum
1,699.20
48.15
2,548.80
72.23
424.80
12.04
132.42
Location: Presa, Canelar (Perimeter Fence of KCC Mall Construction Site), ZC.
31-Mar-15 to 01-April-15
Given:
Line Pressure ( P )
Size of damage ( D)
Duration of leak (t)
= 6 psi
= 19 mm or 1.9 cm
= 72 hrs
Formula used :
P = ƴh ;
V²=(2gh);
Q= AV
Vol= Qt
Computation:
P = ƴh ;
6 lb/in2
h=
62.43 lbs/ft3
h=
h=
1ft
12in
3
166.07 in
13.84 ft
V²=(2gh);
[
V²= 2(32.2ft/s²)(13.84ft)
]
V= 29.85 ft/s
A=
_πD²_
4
= π(1.9cm x in/2.54cm x 1ft/12in)²
4
A= 0.00305 ft²
Q= AV;
Q= 0.00305 ft² (29.85 ft/sec)
Q= 0.091 ft³/sec
Vol = Qt;
Vol = 0.091 ft³/sec (72 hrs x 3600 sec/hr)
= 23,587.20 ft³ x (1m/3.28 ft)³
Vol.= 668.43 m³
Location: Zone 6, Culianan, ZC.
27-Nov-15 to 04-Dec-15
Given:
Line Pressure ( P )
Size of damage ( D)
Duration of leak (t)
= 10 psi
= 100 mm or 10 cm
= 165 hrs
Formula used :
P = ƴh ;
V²=(2gh);
Q= AV
Vol= Qt
Computation:
P = ƴh ;
10 lb/in2
h=
62.43 lbs/ft3
h=
h=
1ft
12in
3
276.79 in
23.06 ft
V²=(2gh);
[
V²= 2(32.2ft/s²)(23.06ft)
]
V=38.54 ft/s
A=
_πD²_
4
= π(10cm x in/2.54cm x 1ft/12in)²
4
A= 0.0845 ft²
Q= AV;
Q= 0.0845 ft² (38.54 ft/sec)
Q= 3.26 ft³/sec
Vol = Qt;
Vol = 3.26 ft³/sec (165 hrs x 3600 sec/hr)
= 246,456 ft³ x (1m/3.28 ft)³