Gunner Sub-CS 980223Tr. inity 'River Authority of Texas
Central Regional Wastewater System
3110.620.010
February 23, 1998
Mr. Kenneth M. Griffin, P.E.
Director of Engineering and Public Works
City of Coppell
P.O. Box 478
Coppell, Texas 75019
Dear Mr. Griffin:
Subject: Central Regional Wastewater System
Point of Entry Request . City of Coppell
Coppell Interceptor, Station 133+97 '
Serving the eastern portion of Coppell
In response to the point of entry request dated October 9,
has reviewed the construction standards to be utilized for 1997, the Authority
the point of entry.
The Authority conditionally approves your request based upon the information
submitted which includes the following documents for Gunner Subdivision,
Detail Site Plan dated August 21, 1997 (revised 8/27/97) Preliminary Plat
Revised August 27, 1997, Drainage Area Map File 971146 N~ C07 and No. C08
dated September 29, 1997, Off Site Wastewater Main File 971146 No. C13 dated
September 29, 1997, Water and Wastewater Plan File 971146 No C14 and No. C15
dated September 29, 1997, all signed and sealed by Mr. B McWilliams Jr. on
September 29, 1997., but is subject to the following requirements:
1. The Central Regional Wastewater System Enqineering Field Services
Division must be contacted at (972) 263-2~51 at least 72 hours prior
to construction. If the Authority is not notified, the Authority
reserves the right to request the contractor to excavate his work for
inspection. All inspections shall be performed by Authority personnel
only. City inspectors are not responsible for Authority facilities.
2. All points of entry must be constructed within one year after their
approval by the Authority. Any alterations to the plans concerning
the Author~ty's pipeline, manholes, or other appurtenances must be
preapproved by the Authority.
3. A preconstruction meeting between the contractor, The City of Coppell
and the Authority will be required prior to construction.
6500 W. Singleton Blvd.
Dallas, Texas 75212
Metro (972) 263-2251
Adrnin Fax: (972)264-1382
Lab Fax (972) 262-0619
~ Recy¢led Paper
February 23, 1998
Mr. Kenneth M. Griffin, P.E.
Point of Entry Request
Page 2
The connection to the TRA line shall be to the existing manhole at
station 133+97 on the 33" Coppell Interceptor with a method of
connection approved by Trinity River Authority.
o
The connection will be made by the City of Coppell with the
understanding that the 33" Authority's interceptor the City proposes
to utilize for the POE, currently exceed hydraulic capacity. Design
and construction of a relief interceptor is not within the system
rogram until late 1998. The existing interceptor is highly loaded
ydraulically; therefore, the connection to the flow line of the.
existing interceptor must be made during times of low flow, or after
the relief interceptor is constructed.
The contractor shall verify the location and elevation of the existing
TRA line prior to the construction of the creek crossing and last
portion of the connection.
o
The contractor shall use OSHA approved trench safety procedures when
working around TRA facilities and OSHA approved confined space entry
procedures when entering a TRA manhole. The safety equipment shall be
furnished by the contractor and shall be OSHA certified. Persons
working in these areas shall be trained in the proper use of the
safety equipment. TRA personnel shall be present anytime a TRA
manhole is entered.
This point of entry shall service the City of Coppell, Texas and wastewater
contribution will be monitored at Meter Station 17.0E.
If you have any questions or require further information please contact John
H. Herndon, P.E. Environmental Services Coordinator at (972) 263-2251.
Sincerely
WM. B. CYRUS
Manager. Technical Services
WBC/jm/bc
Attachment
CC:
Patricia M. Cleveland. Manager of Operations. Northern Region
John H. Herndon, P.E.. Environmental Services Coordinator
Robert A. Starkey, Interceptor System Specialist
TRINITY F~VER AUTHORITY OF TEXAS
NORTHERN REGION PROJECTS
POINT OF ENTRY REQUEST FORM
PAGE f CF 2
CONTRAC~NG PARTY INFORMATION
CONTRACTING PARTY: Coppell, Te×as
PROPOSED PROJECT NAME: Gunner Subd±v£sion
DESIGN ENGINEER: Carson- Sa [ cedo-McW± [ 1 £ ams,
Inc.
C~NTACT: Mac McWilli Rm~ PltONE: _2~L~_-741 -a6a0
I1. LOCATICN OF FROI:'OSE9 CONNECTION (USE TRA NOMENCLATURE)
NOTE: DETAILS CONCERNING TRA INTERCEPTORS ARE AVAILABLE FROM THE INDIVIDUAL
TPJ~ PROJECT BUT $itOULD BE FIELD VERIFIED PRIOR TO SUBMIt'AL
PROJECT: (CHECK ONE~ X CRWS TMCRWS
ROCRWS DC~WS
Ti:LA INTERC~.PTOR: CopDell ' Interceptor
TRA STATION NUMBER; 1 3 3 + 9 7
PLANNED LAND USE FORTHE AREATO 6E SERVED: Residential
ACREAGE: 4 2.3
Ill. FLOW INFORMA33CN
ANTICIPATED
INITIAL FLOW EXPECTED:
ULTIMA3E FLOW EXPECTED;
11/01/98
MGD (DAILY AVERAGE) _0_._2_0.2__
MGD (PEAK) 0.5 0 4
MGD (DALLY AVERAGE) 0.4 8 4
MGD (PEAK) 0.9 6 7
Unit
OASISFORESTAOLIE~INGFLOW:
0.00144 M.G.D/ADartment
IV. COi"~NECT1ON INFORIVIATION
At'ITIC:PATED OATE CF CONNECTION;
_y _ EXISTING MANHOLE
SIZE OF CONNECTION:
SLOPE AT CONNECTION;
11/01/98
OR CONSTRUCT MANHOLE
1 2" PVC "
0.20% ~
TRINITY RIVER AUTHORITY, OF TEXAS
NORTHERN R.E..GiON PROJECTS
POINT OF ENTRY REQUEST FORM
PA~E 2 OF 2
IV. CONNECTION INFORMATION (CONT.)
PiPE MATERIAL: [:)Vd
.V. IS A METERING STATION I-'ACILITY REQUIREr}?
X
NO
VI. A'I-rAcHMENT INFORMATION
NOTE: REQUESTS WITHOUT 3J-IlS INFORMATION WILL BE DELAYED UNTIL ALL THE
INFORMATION IS RECEIVED.
ATTACHMENTS ACCOMPANYING THIS REQUEST CONTAIN: (PLEASE CHEC}O
,~ PLAN SHEETS (DATE OF LAST REVISION ~)
PROFILE SHEETS
SPECIFICATIONS
OTHER ATTACHMENTS: (COMPLETE ONLY IF A METERING FACILITY IS REQUIPED)
PLAN SHEET~ (DATE OF LAST REVI~tON }
PROFILE SHE=l-TS
CONSTRUC~ON SPECIFICATIONS
INSTRUMENTATION SPECIFICATIONS
INSTRUMENT~ATION SUBMI i--rALS
REQUIRE[2 AI--TACHMENTS: SERVICE AREA I~AA? WHICH SHALL INCLUDE DRAINAGE
AREA, CITY BOUNDARIES, AND NAME OF DEVELOPMENT.
VIi.
REQUEST MU$¥ BE $~GNED BY THE CONTI~CTING FARTY, (~,-rY AEPRE~ENTATiVL~.
OATE: lO- ~ ' e~
NOTE: PLEASE SE-- ATTACHED 'GENERAL INFORMATION' SHEET FOR TRA PF, OJECT
ADDRESSES FOR SUEMI]-TAL OF COMPLETED FORM.
M
Q ' R
Inc.
PROJECT LOCATION MAP
e~;st:~,4 16° 9os me~
I
EXHIBIT "A "
913.214.4576 SO.PT. ~--
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LO"~ 2.
42.3 ACRES .
42.3 Ac.
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