4. Flow Test for Sequoyah Site

AID 1603654 · View on Simbli

Agenda Item

ix. Request to Georgia Department of Education for Site Approval for the new Middle and High School Facility at the Sequoyah Site

Summary: Presented by: Mr. Erick Hofstetter, Chief Operating Officer, Division of Operations
Request: It is requested that the Board of Education approve the application to the Georgia Department of Education for site approval of the new Middle and High School Facility at the Sequoyah Site.
Why: A formal request for site approval is required by the Georgia Department of Education for the construction of new school facilities, including rebuilding existing school facilities.
Details: The Georgia Department of Education requires that all school facilities being built or rebuilt undergo a formal process of review of the geographic, environmental, and development conditions of the site on which new school facilities will be constructed. Once this review process has been completed, a formal request for site approval by the local school system is necessary for the Georgia Department of Education to consider the site application for approval.
Financial impact: There is no financial impact of submitting a site application to the Georgia Department of Education.
Contact: Mr. Erick Hofstetter, Chief Operating Officer, Division of Operations, 678-676-1475

Mr. Hans Williams, Dir. Planning & E-SPLOST Programming, Division of Operations, 678-676-1588
Effective: Upon Board Approval
Status: Approved by General Counsel
August 31, 2023



GMC Architecture
Attn: Amy Bell
VP of Architecture
6120 Powers Ferry Rd., NW, Suite 200
Atlanta, GA 30339



RE: DeKalb County Schools: Sequoyah Middle & High School Fire Flow Test

Dear Ms. Bell

Goodwyn Mills Cawood, LLC (GMC) has performed a flow test for the above-mentioned
site. The results of the test are as follows: All pressures are in (psi) and all flows are in
(gpm). Available flow is based on Hazen-Williams Formula.
                                              QR = QF x hr0.54/hf0.54

Where QR = Available Flow, QF = Observed Flow, hr is the drop in pressure to the desired
residual baseline (20 psi), and hf is the drop in pressure to the actual residual pressure that
was measured in the field.

                           Static Pres.      Flow/Pressure     Residual Pres.    Available
Flow FH                    108.0             1,250/55.0        64.0              1,818

1. Flow FH @ 3495 Aztec Rd.
300 feet Santa Fe Trail.
On 8/25/23 @ 9:30 a.m.


The site will have more than adequate flow available to meet minimum fire flow needs of
750 gpm. The Fire Hydrant flow is based on an orifice diameter of 2-1/2”. Flow was
conducted by GMC’s Tony Van De Ryt and Lauren Rainey. The distance between hydrants
is 593 feet. The flowing hydrant is located 300 feet north of Santa Fe Trail on Aztec Rd. and
the pressure hydrant is located at the northeast corner of Arbor Creek Ln. and Aztec Rd.

Should you have any questions, please call our office.



Sincerely,

Goodwyn Mills Cawood, LLC



Curtis Barber, PE
Engineering Production Manager

Enclosures
                                                                                Phone: (770) 952-2481
6120 Powers Ferry Road NW, Ste 200                                                Fax: (770) 955-1064
Atlanta, GA 30339                                                               www.gmcnetwork.com




                          Hydrant Flow Test Work Sheet
        City or County               Dekalb County Schools – Sequoyah MS & HS

        Target Hydrant # (FDZ # -Hydrant # STA. #)                     3495 Aztec Rd. (House #)

        Address of target hydrant             3456 Aztec Rd, Doraville, GA 30340

        Date of Test                 8/25/2023                Time of Test              9:30 am

        Testers/Assignment           Tony Van De Ryt & Lauren Rainey

        Target Hyd.       B          Static    108   psi     Residual           64      psi

        Flow Hyd.         A          Hyd. # (FDZ# - Hyd STA. #)                 1,250 gpm

                                     # of ports flowed       1                  Diameter        2.5”

                                     # of ports flowed                          Diameter

                                     Pitot or flow meter reading       1,250 gpm

                                     Pitot or flow meter reading       55 psi


        Comments:




        Test Conducted by:           Tony / Lauren

                                                     Office Use Only

        Test requested by:                    Dekalb County Schools

        Address:          1780 Montreal Road, Tucker, GA 30084-6705

        Phone:            (678) 676-1320                               Date contacted: August 2023
The Hydrant Flow Test Calculator measures the rated capacity at 20 psi of a fire hydrant. The rated capacity calculation is useful in determining the
total water supply at a given point in the hydrant or water main. The calculation offers more useful information than the test flow by itself and is used
by insurance underwriters. For more information see NFPA 291 and AWWA M-17.
                       FH (A)
                       Flow: 1,250 GPM
                       Residual Pressure: 55 PSI




    Sequoyah
Middle & High School   FH (B)
                       Static Pressure: 108 PSI
                       Residual Pressure: 64 PSI