Fire Hydrant Flow

Test Report

We Deliver May 25, 2018

Page | 1

Fire Hydrant Flow Test Report | FOR OFFICIAL USE ONLY | May 25, 2018

Code of Business Conduct 2015 KBR Fire Hydrant Flow Test Report

1. The first test was performed on May 24, 2018 during off-peak hours. The test started at 1:30 PM and had the following results: Water main diameter: ∅250 𝑚𝑚 (9.84 𝑖𝑛𝑐ℎ) Residual hydrant results (hydrant # 2): Static pressure: 85 psi; Residual pressure (with one flow hydrant #1 fully open): 70 psi. Flow hydrant result (hydrant # 1): Pitot pressure: 28 psi.

Discharge: 𝑄 = 29.84𝑐𝑑2√𝑝

c = 0.90 d = 2.5 p = 28

𝑄 = 29.84 ∗ 0.9 ∗ 2.52√28 = 888.18 𝑔𝑝𝑚

𝑄𝑓 = 𝑄 [𝑃𝑠 − 20

𝑃𝑠 − 𝑃𝑟]

0.54

𝑄𝑓 = 888.178 [85 − 20

85 − 70]

0.54

= 1960.577 𝑔𝑝𝑚 𝑎𝑡 20 𝑝𝑠𝑖

Page | 2

Fire Hydrant Flow Test Report | FOR OFFICIAL USE ONLY | May 25, 2018

Code of Business Conduct 2015 KBR Fire Hydrant Flow Test Report

2. The second test was performed on June 29, 2017 during peak hours. The test started at 2:00 PM and had the following results: Water main diameter: ∅250 𝑚𝑚 (9.84 𝑖𝑛𝑐ℎ) Residual hydrant results (hydrant #6): Static pressure: 75 psi; Residual pressure (with one flow hydrant #5 fully open): 70 psi. Flow hydrant result (hydrant #5): Pitot pressure: 22 psi.

Discharge: 𝑄 = 29.84𝑐𝑑2√𝑝

c = 0.90 d = 2.5 p = 22

𝑄 = 29.84 ∗ 0.9 ∗ 2.52√22 = 787.28 𝑔𝑝𝑚

𝑄𝑓 = 𝑄 [𝑃𝑠 − 20

𝑃𝑠 − 𝑃𝑟]

0.54

𝑄𝑓 = 787.28 [75 − 20

75 − 70]

0.54

= 2873.963 𝑔𝑝𝑚 𝑎𝑡 20 𝑝𝑠𝑖

Page | 3

Fire Hydrant Flow Test Report | FOR OFFICIAL USE ONLY | May 25, 2018

Code of Business Conduct 2015 KBR Fire Hydrant Flow Test Report

3. The third test was performed on May 24, 2018 during peak hours. The test started at 2:15 PM and had the following results: Water main diameter: ∅250 𝑚𝑚 (9.84 𝑖𝑛𝑐ℎ) Residual hydrant results (hydrant #7): Static pressure: 65 psi; Residual pressure (with one flow hydrant #8 fully open): 60 psi. Flow hydrant result (hydrant #8): Pitot pressure: 24 psi.

Discharge: 𝑄 = 29.84𝑐𝑑2√𝑝

c = 0.90 d = 2.5 p = 24

𝑄 = 29.84 ∗ 0.9 ∗ 2.52√24 = 822.293 𝑔𝑝𝑚

𝑄𝑓 = 𝑄 [𝑃𝑠 − 20

𝑃𝑠 − 𝑃𝑟]

0.54

𝑄𝑓 = 822.293 [65 − 20

65 − 60]

0.54

= 2693.503 𝑔𝑝𝑚 𝑎𝑡 20 𝑝𝑠𝑖

Page | 4

Fire Hydrant Flow Test Report | FOR OFFICIAL USE ONLY | May 25, 2018

Code of Business Conduct 2015 KBR Fire Hydrant Flow Test Report

4. The fourth test was performed on May 24, 2018 during peak hours. The test started at 2:30 PM and had the following results: Water main diameter: ∅250 𝑚𝑚 (9.84 𝑖𝑛𝑐ℎ) Residual hydrant results (hydrant #12): Static pressure: 60 psi; Residual pressure (with one flow hydrant #11 fully open): 55 psi. Flow hydrant result (hydrant #11): Pitot pressure: 24 psi.

Discharge: 𝑄 = 29.84𝑐𝑑2√𝑝

c = 0.90 d = 2.5 p = 24

𝑄 = 29.84 ∗ 0.9 ∗ 2.52√24 = 822.293 𝑔𝑝𝑚

𝑄𝑓 = 𝑄 [𝑃𝑠 − 20

𝑃𝑠 − 𝑃𝑟]

0.54

𝑄𝑓 = 822.293 [60 − 20

60 − 55]

0.54

= 2527.523 𝑔𝑝𝑚 𝑎𝑡 20 𝑝𝑠𝑖

Page | 5

Fire Hydrant Flow Test Report | FOR OFFICIAL USE ONLY | May 25, 2018

Code of Business Conduct 2015 KBR Fire Hydrant Flow Test Report

5. The fourth test was performed on May 25, 2018 during peak hours. The test started at 6:00 AM and had the following results: Water main diameter: ∅250 𝑚𝑚 (9.84 𝑖𝑛𝑐ℎ) Residual hydrant results (hydrant #15): Static pressure: 60 psi; Residual pressure (with one flow hydrant #16 fully open): 55 psi. Flow hydrant result (hydrant #16): Pitot pressure: 24 psi.

Discharge: 𝑄 = 29.84𝑐𝑑2√𝑝

c = 0.90 d = 2.5 p = 24

𝑄 = 29.84 ∗ 0.9 ∗ 2.52√24 = 822.293 𝑔𝑝𝑚

𝑄𝑓 = 𝑄 [𝑃𝑠 − 20

𝑃𝑠 − 𝑃𝑟]

0.54

𝑄𝑓 = 822.293 [60 − 20

60 − 55]

0.54

= 2527.523 𝑔𝑝𝑚 𝑎𝑡 20 𝑝𝑠𝑖

Page | 6

Fire Hydrant Flow Test Report | FOR OFFICIAL USE ONLY | May 25, 2018

Code of Business Conduct 2015 KBR Fire Hydrant Flow Test Report

6. The fourth test was performed on May 25, 2018 during peak hours. The test started at 6:15 AM and had the following results: Water main diameter: ∅250 𝑚𝑚 (9.84 𝑖𝑛𝑐ℎ) Residual hydrant results (hydrant #26): Static pressure: 70 psi; Residual pressure (with one flow hydrant #27 fully open): 65 psi. Flow hydrant result (hydrant #27): Pitot pressure: 27 psi.

Discharge: 𝑄 = 29.84𝑐𝑑2√𝑝

c = 0.90 d = 2.5 p = 27

𝑄 = 29.84 ∗ 0.9 ∗ 2.52√27 = 872.174 𝑔𝑝𝑚

𝑄𝑓 = 𝑄 [𝑃𝑠 − 20

𝑃𝑠 − 𝑃𝑟]

0.54

𝑄𝑓 = 872.174 [70 − 20

70 − 65]

0.54

= 3024.148 𝑔𝑝𝑚 𝑎𝑡 20 𝑝𝑠𝑖

Page | 7

Fire Hydrant Flow Test Report | FOR OFFICIAL USE ONLY | May 25, 2018

Code of Business Conduct 2015 KBR Fire Hydrant Flow Test Report

7. The fourth test was performed on May 25, 2018 during peak hours. The test started at 6:30 AM and had the following results: Water main diameter: ∅250 𝑚𝑚 (9.84 𝑖𝑛𝑐ℎ) Residual hydrant results (hydrant #41): Static pressure: 70 psi; Residual pressure (with one flow hydrant #40 fully open): 60 psi. Flow hydrant result (hydrant #40): Pitot pressure: 25 psi.

Discharge: 𝑄 = 29.84𝑐𝑑2√𝑝

c = 0.90 d = 2.5 p = 25

𝑄 = 29.84 ∗ 0.9 ∗ 2.52√25 = 839.25 𝑔𝑝𝑚

𝑄𝑓 = 𝑄 [𝑃𝑠 − 20

𝑃𝑠 − 𝑃𝑟]

0.54

𝑄𝑓 = 839.25 [70 − 20

70 − 60]

0.54

= 2001.405 𝑔𝑝𝑚 𝑎𝑡 20 𝑝𝑠𝑖

Page | 8

Fire Hydrant Flow Test Report | FOR OFFICIAL USE ONLY | May 25, 2018

Code of Business Conduct 2015 KBR Fire Hydrant Flow Test Report

8. The fourth test was performed on May 25, 2018 during peak hours. The test started at 6:45 AM and had the following results: Water main diameter: ∅250 𝑚𝑚 (9.84 𝑖𝑛𝑐ℎ) Residual hydrant results (hydrant #47): Static pressure: 80 psi; Residual pressure (with one flow hydrant #46 fully open): 75 psi. Flow hydrant result (hydrant #46): Pitot pressure: 28 psi.

Discharge: 𝑄 = 29.84𝑐𝑑2√𝑝

c = 0.90 d = 2.5 p = 28

𝑄 = 29.84 ∗ 0.9 ∗ 2.52√28 = 888.18 𝑔𝑝𝑚

𝑄𝑓 = 𝑄 [𝑃𝑠 − 20

𝑃𝑠 − 𝑃𝑟]

0.54

𝑄𝑓 = 888.18 [80 − 20

80 − 75]

0.54

= 3398.277 𝑔𝑝𝑚 𝑎𝑡 20 𝑝𝑠𝑖