HomeMy WebLinkAboutSDP202000018 Study 2020-06-15Mbe'"°de,C°""'y
tyServiceAuthri Hydrant Flow
Test Report
188 Spdnap Road Charbtfesisi VA 22911 (43d)9"4511
Location MALLOY RICHMOND RD PANTOPS
Date and Time of Test 6/1/2020 9:27:00 AM
Minutes of Flow 2
Pipe Size (Inches) 8
Pressure Hydrant 11496
Static Pressure (psi) 100
Residual Pressure (psi) 73
Date of Report
6/2/2020
W Q20 Looped Cl Q20 Multiple Inline Hydrants Q20 Single Flow Sprinkler Test Single Flow
Flow Hydrant #1 12222 Pitot Pressure #1(psi) 45 Yellow 1 Se Test Flow 1 1131
Flow Hydrant #2 11278 Pitot Pressure #2 (psi)
Flow Hydrant #3 11932 Pitot Pressure #3 (psi)
Total Estimated Flow (gpm) 3660,
AWWA Q20 Calculation (gpm) 6579'
No value in Q20 indicates insufficient pressure drop for Q20 OR a sole sprinkler test.)
Comments
Hydrants opened all the way
65 Yellow 2 E lTest Flow 2
72 Yellow 3 0 Test Flow 3
For method of calculating pitot flow with a red Pollard diffuser: see eq. 13, Walski and Lutes article 1990 Journal Management and
Operations AW WA. For yellow Pollard diffusers, a best fit third order polynomial equation of the Pollard flow vs. pilot pressure gauge is
used.
Estimated Consumption (gal)
For use for water audit
Signature of Tester:
7320
0
1127
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