HomeMy WebLinkAboutO-1987-1553
.
.
UKDINANCE NO. 1553
AN ORDINANCE AUTHORIZING THE EXECUTION BY THE CITY OF LA PORTE OF A
SETTLEMENT AGREEMENT REGARDING MUNICIPAL SOLID WASTE DISPOSAL SIT.E,
WITH FMC COPORATION AND ROHM AND HAAS BAYPORT, INC.: FINDING COMPLIANCE
WITH THE OPEN MEETINGS LAW: AND PROVIDING FOR THE EFFECTIVE DATE
HEREOF.
BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF LA PORTE:
Section L The City Council of the City of La Porte hereby
finds, determines and declares that Rohm and Haas Bayport, Inc., and
FMC Corporation, have each executed a Settlement Agreement Regarding
Municipal Solid Waste Disposal Site, a copy of which settlement
agreement is attached hereto, incorporated by reference herein,
and made a part hereof for all purposes.
Section 2. The Mayor and the City Secretary of the City of La
Porte, Texas, be, and they are hereby authorized, and empowered to
execute and deliver on behalf of the City of La Porte, Texas, the
Settlement Agreement Regarding Municipal Solid Waste Disposal Site
with Rohm and Haas Bayport, Inc. and FMC Corporation.
section 3. The City Council officially finds, determines, re-
cites and declares that a sufficient written notice of the date,
hour, place and subject of this meeting of the City Council was posted
at a place convenient to the public at the City Hall of the City for
the time required by law preceding this meeting, as requried by the
Open Meetings Law, Article 6252-17, Texas Revised Civil Statutes
Annotated: and that this meeting has been open to the public as
required by law at all times during which this ordinance and the
sUbject matter thereof has been discussed, considered and formally
acted upon. The City Council further ratifies, approves and confirms
such written notice and the contents and posting thereof.
Section 4. This Ordinance shall take effect and be in force
from and after its passage and approval.
Ordinance No. 1553
.
.
PASSED AND APPROVED this the 27th day of July, 1987.
ATTEST:
~~
Cher1e Black, City Secretary
APPROVED:
~tJ
Knox W. Askins, City
CITY OF LA PORTE
By1~~~~
'I. '.
, r
.
.
Subject to Rule 408, Texas Rules of Evidence
THIS AGREEMENT IS SUBJECT TO ARBITRATION
UNDER THE TEXAS GENERAL ARBITRATION ACT
STATE OF TEXAS
s
s
s
COUNTY OF HARRIS
AGREEMENT REGARDING MUNICIPAL SOLID WASTE DISPOSAL SITE
WHEREAS, the City of La Porte, a municipal corporation in
Harris County, Texas (ftLa Porteft), has applied for a solid waste
disposal permit from th~ Texas Department of Health (ftTDHft) for a
solid waste landfill (the "Landfillft), on property located
approximately 0.5 miles south of the intersection of Bay Area
Boulevard and Fairmont Parkway and immediately east of Bay Area
Boulevard in the extraterritorial jurisdiction of the City of La
Porte in Harris County, Texas 1
WHEREAS, La Porte has obtained a permit for an air curtain
destructor from the Texas Air Control Board and in the future La
,
Porte may expand operations at the Landfill to include resource
recovery operations {all operations at the Landfill are included
within the term ftLandfill" for purposes of this Agreement) 1
WHEREAS, Rohm and Haas Bayport Inc. ("Rohm and Haas"), a
Texas corporation, owns property to the north of the proposed
Landfill where it operates a chemical plant1
WHEREAS, FMC Corporation (ftFMCft), a Delaware corporation,
owns the property that would be the site of the proposed Landfill
after acquisition by La Porte, and owns additional property
contiguous to the south boundary of the proposed Landfill which
is undeveloped on the north portion and which serves as the site
of an FMC chemical plant on the south portion:
WHEREAS, Rohm and Haas and FMC, have been individually and
jointly opposing La Porte's application for a TDH permit for the
Landfill1 and
WHEREAS, all Parties hereto have determined that it is in
their best interests to enter into this Agreement1
SL:47l00.l/4
-1-
e
e
NOW, THEREFORE, in consideration of the premises and of the
respective agreements set forth herein, the Parties agree as
follows:
1. La Porte shall limit use of the Landfill to the disposal
of municipal waste generated in La Porte and the City of
Seabrook, Texas, or the disposal of ash from an incinerator used
by La Porte or the City of Seabrook or both to incinerate all or
part of the municipal waste generated by each.
2. La Porte agrees ~o limit the future use of the property on
which the Landfill is located to industrial activities or
municipal activities of an industrial nature such as equipment
maintenance facilities, warehouses and vehicle storage areas. La
Porte further agrees the property shall not be used for
residential, commercial, recreational, park, or educational
purposes or any use that would be inconsistent with the
industrial character of the Bayport Industrial Area in which the
Landfill is located.
3. The Parties agree that the entrance to the Landfill
should be designed, constructed, and maintained in a way that
will minimize the visual impact of the Landfill. La Porte agrees
to design, construct, and maintain the entrance in accordance
wi t.h the plan depicted as At.tachment No. I labeled "Landfill
Access Road at Bay Area Boulevard, n and the Parties agree that
such design is adequate to minimize the visual effect of the
entrance to the Landfill.
4. La Porte shall require all trucks delivering waste to the
Landf ill to be properly covered or contained so as to prevent
waste from spilling onto roadways and property in the Bayport
Industrial Area. La Porte agrees to remove promptly any such
spillage, and endeavor to accomplish same by no later than the
close of business on the day after such event is reported.
5. La Porte shall minimize traffic congestion by providing
waiting and parking areas off of public roads for trucks
delivering waste to the Landfill.
5L:47100.lj4
-2-
e
e
.
6. La Porte shall take all reasonable measures to prevent
vehicles leaving the Landfill from tracking mud onto the access
roads to the Landfill.
c 7. The Parties agree that it is necessary to control
stormwater runoff from a municipal landfill.
La Porte has
prepared plans and specifications of its stormwater control
facilities and the same have been submitted to and approved by
the Harris County Flood Control District. The Parties agree that
stormwater control faci~ities that are constructed in accordance
with the plans and specifications attached hereto as Attachment
No.2, constitute reasonable and adequate stormwater control
measures, subject to the change in location of the perimeter
drainage ditch described in paragraph 10 below. La Porte shall
maintain its on-site drainage facilities in a condition so that
they function substantially as designed.
8. La Porte agrees that the Landfill will be constructed and
operated in accordance with the application as it is currently
cast with the TDH.
The Landfill shall not exceed a height of
approximately 39 feet mean sea level ("msl"). La Porte agrees to
maintain vegetation along the north, south and west buffer zones
which will minimize, so far as is practicable, the visual impact
of the Landfill from these three directions.
In particular,
along the north buffer zone, La Porte will plant trees which can
be expected to grow to a height of approximately 40 feet msl
(approximately 26 feet above grade) and to plant such bushes,
shrubs, and the like among the trees to provide visual screening
between the ground and the start of the foliage of the taller
trees. The naturally occurring vegetation will form the visual
screening to the west and south. Should any naturally occurring
vegetation or foliage .be. d,estroyed along the west and south
buffer zones by act of man or nature, La Porte shall. replant the
disturbed area with tree saplings or shrubbery of a like kind
indigenous to the buffer zone areas.
La Porte will replant
saplings in the areas in the west buffer zone that have been
disturbed by entry of equipment on the site, with such replanting
to occur prior to the time the landfill first receives municipal
was'te.
5L:47100.lj4
-3-
.
e
9. La Porte agrees to increase the width of the north
buffer zone area by 10 feet to a total of 18 feet and that of the
south buffer zone area by 20 feet to a total of 28 feet. The
increased footage on the north will be obtained by reducing the
size of the landfill by 10 feet.
The increased footage on the
south will be acquired from FMC as part of the purchase of the
entire site.
10. The original design contemplated that the perimeter
drainage ditch was to .1;:>e located outside the vegetative buffer
zone.
The Parties agree that such drainage ditch should be
located between the vegetative buffer zone and the landfill
operations. To relocate the ditch, La Porte must get permission
from the Harris County Flood Control District. The Parties agree
to cooperate to obtain that permission.
ll. La Porte shall implement a groundwater monitoring program
that, in addition to the requirements in 25 TAC 32S.124~ includes
analyses for phenol and total organic halogens.
The Parties
agree to exchange all groundwater monitoring results collected by
each, whether done under the requirements of any local, state, or
federal statute, regulation, or permit, or whether done at the
Parties own behest. This information shall be accumulated and
exchanged quarterly, if such information has been generated in
the previous three months.
12. La Porte agrees to notify the other Parties hereto
wi thin 10 days following the submittal of any applications for
permits, authorizations,
licenses, or the like,
including
amendments thereto, with respect to this tract of land.
13. La Porte agrees that, wi thin 60 days of acquiring the
-
site for the construction of the Landfill, to place of record in
the Real Property Records. of Harris County, Texas, the covenants
and restrictions contained in this Agreement restricting (a) La
Porte's operation of the Landf ill and (b) future uses of the
land.
Such recorded restrictions shall be considered and
construed to be covenants running with the land, binding upon
each successive owner of any part of the land, and shall be for
the benefit of and enforceable by the Parties hereto or their
successors and assigns.
SL:47l00.l/4
-4-
.
e
14. La Porte shall provide police and fire protection to the
Landfill.
l5. The Parties hereto agree to allow representatives of the
other Parties to enter and inspect each Party's facility during
normal daylight business hours Monday through Friday to protect
the integr i ty of this Agreement.
The representative of each
Party shall be' the City Manager and the Plant Managers, or an
alternate individual in upper management which has been expressly
designated by the authorized representative.
.
l6. As consideration for La Porte's agreeing to the above
conditions, Rohm and Haas and FMC agree to withdraw their
opposi tion to La Porte's pending application to the TDH for a
solid waste disposal permit for the Landfill and not to oppose
same in any other forum.. Additionally, these Parties shall not
in any way encourage, directly or indirectly, including financial
contributions, other than mandatory dues and assessments paid to
Bayport Industrial Association, any other person, firm, or entity
to oppose or in any other manner attempt to prevent La Porte from
operating the Landfill that is the subject of this Agreement.
Provided, however, these Parties are in no way limited in
exercising whatever rights or remedies which may be available to
each to see that the Landfill is operated in compliance with
applicable regulatory requirements and to enforce the terms of
this Agreement.
17. The terms of this Agreement and other restrictions are
40 years, or the longest period permitted by the laws of the
State of Texas.
18. The Parties understand and agree that if for any reason
La Porte does not receive a permit to operate a landfill at the
site contemplated by this. Agreement, or for whatever reason does
not begin the disposal of waste at the site, all provisions of
this agreement are null and void save and except paragraphs 2 and
13.
19. This Agreement shall be binding upon and shall inure to
the benefit of the respective successors and assigns of the
Parties hereto.
5L:47l00.l/4
-5-
.
.
20. The Parties hereto covenant and agree to execute such
other and further documents and instruments as are or may become
necessary or convenient to effectuate and carry out the
objectives of this Agreement.
21. This Agreement was lawfully approved pursuant to City of
La Porte Ordinance No. I~~J adopted by the City Council of the
City of La Porte by the majority vote on Agenda Item No. 9
at the City Council meeting on {lt~ .;11 , 1987.
j' c7
22. Any noti.ces r.elated to this Agreement must be made in
writing and may be given or served by depositing the same in the
Uni ted States mail postpaid and registered or certif ied, with
return receipt requested. Notices shall be sent to the following
designated representatives at the addresses indicated:
If to La Porte, to:
City Manager
City of La Porte P.O. Box IllS
La Porte, Texas 7757l
If to Rohm and Haas
Bayport Inc., to:
President
Rohm and Haas Bayport, Inc.
P.O. Box 1330
La Porte, Texas 77S71
If to FMC, to:
Plant Manager
FMC Corporation
l2000 Bay Area Boulevard
Pasadena, Texas 77507
The designated representatives and their addresses can be changed
with at least IS days written notice to the other parties.
Executed in multiple or ig inals, this :;..10 day of
~kjl
, 1987.
,
1-
~
~
J, '
" .
'I.
.
I
.
.
.
--
I
/ I "
THE CITY OF LA PORTE
By!f7)?l~,/4 (~L(
y""or
Attest: t!.k~~. Ua-e:..L
City Secretary
SL:47100.1/4
-6-
.
STATE OF TEXAS
/ / ,
COUNTY OF /)l.....''4/f,.UO
This instrument was
1987, by R. D. Gilbert,
a Texas corporation, on
. I
STATE OF 'l'EXAS
I / /; /.". -
COUNTY OF "177 a ~,
s
s
s
e
ROHM and HAAS BAYPORT INC.
By ~tY
R. fi. Gilbe
President
FMC CORPORATION
BY~r~ ~~.
Plan Manager
~,
'Inc. ,
acknowledged before me on
President of Rohm and Haas
behalf of said corporation.
D().(!o ~ .,kl /1..eg
Notary Public, /State of Texas
Notary's name (printed:
Notary's commission ~xpires:
/r:ri - ~..J- Ef
s
s
s
This instrument was acknowledged before me on '~~~1;7,
1987, by Roger C. Threde, Plant Manager of FMC C rporat'ion, a
Texas corporation, on behalf of said corporation.
'Z)/~tf~; ~/ /JA:?/2(
Notary Public~ State of Texas
Notary's name (printed:
. I
SL:47l00.l/4
Notary's commission expires:
/ d. - ,;1.3 - - c.;: 7'
-7-
.
e
(I-
'..-~._'.--,._.........~.......~.-... --.... ..
0- . ':. ... . ... .. . ." .
RAILROAD
-I 1 I 1 I I I 1-
~ I I l
)( )( ...-
MAINTENANCE
BUILDING
d
~
m
ct
1&J
a:
ct
~
m
)C
SECURITY
FENCE
-EXISTING TREES ~ ~
TO REMAIN ~ ~
~ E.p.SE.",E.\'l"'t ~/
G~S ~\r;fi.,-\\'lE. ________
~
~. ..
..W.... ,
x
. .-,
NORTH
. ... .
, .: ''\~''.'. '~.'. ..... ';. .;....
~.' '. I .... .'. .... .... _..: '. _ .... .~., .... '.: . _:.' '. ...... '.
... ':.... ..':,..
I:"
LANDFILL ACCESS ROAD
AT BAY AREA BLVD.
ATTACHMENT NO.
'.' '. ...... .... .. ..' .......
..... . .'~'.. .. ..' : ":'". ..... .....: ," :.... ':,' :.. ~,,,,:"".;..' ",'\"..~"''': ':'f .':,... .... ....t...
. ,
HDR
. .' ~ . ~ ..
."
......._... .' :. 0", ",.,"
.0' .';,'. ....
e
e
~~
Kxn~-i'~
.. T..... oM.
A Cent"'. Company
Suit. t25 TelephOnt:
'27Otl HlIIcfeIt Aoed CI'4) 110-OOO'
Dena" T....
75230-2016
~ w.... MaMglfMfttl
..-ource Aecowery
Pulp & Paptr
Utility & Energy
July 18, 1985
Ms. Laura Harmon
Harris County Flood Control District
8615 N. Main
Houston. Texas 77022
Re: Drainage from' proposed Sanitary Landfill site in LaPorte. Texas
Dear Ms. Harmon:
As per your comments received on July 11, 1985 here is the revised
completion plan with ditch elevations along with the design of the
structure entering HCFCD ditch A104-07-00. Please note that we have
returned to the original outfall structure alignment which was
submitted on April 3, 1985.
Also, please find enclosed the revised flow and velocity calculations
for the outfall structure and the 100-year flood event calculations
along with flow capacity calculations of ditch A104-07-00. Cross-
sections of on-site ditches are also provided.
In reference to your comment concerning the limits of the HCFCD right-
of-way. we do not know the exact boundary of the right-of-way. We are
'only certain of the limits of our own property. The two monitor wells
that you circled are already in place and are not in the HCFCD right-
of-way to the best of our knowledge.
~e' have' s'ubin1tted" a"" pr'e'vi'o'iJ'sly"'receivect 'c'men'ts"'from:HCFCD. 'Thanl('" ".
you for your timely response in this matter. _
Very truly yours.
William L. Stafford
Project Manager
.. ". .....WlS:pp
.. to: ..... .:'. '. ....: 0':. ...
.. .. . .
.. . . :.
.- .....
Enclosure: HCFCD comments, completion plan. ditch design, ditch cross
sections. ditch calculation
ATIACHMENT NO. 2*
*additional information contained in La Porte's Sanitary Landfill
P.~:rmit Appltc~~iQn .:" ..'.... ., .....,.... .,....,.. -.,.. ..' .:. .
. . . ........ . .' ..'
e
e
r- -~
EJr~.,..~f /,#_ ~A~,.A. - SetA'~ s-..1fIt"~.
~,,.I, .~_I,.,..
~..~I'//1 /1"1#1,'1'
~ .
v. Drainage Outfall into HCFCD Ditch
The Harris County Flood Control District requires that flow into an HCFCD
ditch be concentrated and have an incoming velocity of 3 ft/s. Upon
recommendation by HCFCD, the conduits for outflow into the HCFCD ditch were
designed to contain a three-year flood event (three-year flows were
calculated in Section III of this attachment and are shown on Attachment No.
9). The overflow ditctles w~re designed to contain overflow, of a 25-year
flood event, not contained by the conduit.
The following calculations for the outflow conduits are based on the Manning
equations for full pipe flow:
Of* = Q.463 D 8/3 S 112
n
Vf* = 0.590 D 2/3 S 1/2
n
The flows in the outflow conduits are not considered to be under pressure
and therefore the calculations are conservative.
': ,.:..L....The..:flow.('OJ.). into ttie 'HeFCi) ij'itch fronr,""ditch'2 -is"lO..2"cfs'-(.r-efer.,to
Attachment No. 8e).
Given:
03 = 10.2 cfs
Vf = 3 fps
n = 0.024 (Texas Hwy. Dept.- Hydraulic Manual, Corrugated Metal
Pipe)
Assume one pipe will be used
Minimum pipe size allowed = 24" (HCFCD Specification)
Area = 10.2 = 3.4 ft 2
.-r-' '
..... ;..~.. .....:...-./;p ..... .... ". '0' '..:.. n' '0 ~. .... ..I..... "'0 .... '.... '. ..' .. .'. ..... ",.. ..0. .". ':'.0 ...., ...... '"i I" .. .... "0 .
. .'. '.: . .........;. ..: ....... ....
D (pip~) = 4 (3.4 ft 2t = 2.08 ft = 25.0 in
Use D=' '30" CMP
Vf = 3 = 0.590 1JQl2/3 (S) 1/2
0.024 1I2T
-21-
.'.. "00.: .............. .... :.... .....
... I":'
I' . . . .. 00. : : I . 'I. ". ':",.
"0 " '"0 :' ...... ... ..: 00-
, . '.., ~'/"'- ji,
.
.
~--
S = 0.0044
Of = 0.463 l~_Ql 8/3 (0.0044) 1/2 = 14.73 cfs
m 1m
Use 1 - 30" CMP
Ditch 7, Overflow from Ditch 21 Section 2-2
Qc = 148 cfs - 14.73 = 133.3 c s
Slope = 0.0005
Side Slope = 3:1
Mannings Coefficient = 0.035
Oc = 133.3 cfs
Using the nomograph for this channel the flow (Oc) will require a bottom width of
25 feet and a depth of 2.7 feet.
The design of the overflow ditch given above is presented on Attachment 8B.
2. The flow (03) into the HCFCO ditch from ditch 4 is 12.9 cfs (refer to
Attachment No. 8C).
Given:
03 = 12.9 cfs
Vf = 3 fps
n = 0.024 (THO-Hydraulic Manual, Corrugated Metal Pipe)
Assume one pipe will be used
Minimum pipe size allowed = 24" (HCFCO Specifications)
A = 12.9 = 4.30 ft2
. ... .,.... , '.> '., :. 3' .,.... '. .'.' .
... " ......:: '. . .: .
"0 ... .,
. . " . '0. . ..0
,
o (pipe') = 4 (4.30) = 2.34 ft = 28.1 in
Use 0 = 30" CMP
Vf = 3 = 0.590 (30)2/3 (S)1/2
U':'ON (I2')
S = 0.0044
'" ...,.... .. . ,:. Of ,= 0:463 ,(21) '8/3 (0.0~44)1/2 =' .14.73 cfs
.,..-......-.. .. .'. ' . .-" ,.' "0.024 (N)' ".~ ." .... : '.' . "'..' ,. ,... .'.
. . .' .'.: .' ~ '0. . ~. '. .
. '; :.. . .~ . .. : ..'
.. . ~..' .0. .:, .: .
Use 1 '- 30" CMP
Ditch 8, Overflow from Ditch 4l Section 4-4
Qc = 188 cfs - 14.73 = 173.3 c s
-22-
" .....
. -. .....,...... ......,.;.,......... .'..............:... ....,.,. ...., ..':,.,'.. .'.7-1'-""
..'" ~- -..
. . ..
. .. ...
'. ..
:., 0... "
.
.
~
Slope = 0.0005
Side Slope = 2.5:1
Mannings Coefficient = 0.035
Qc = 173.3
Using the nomograph for this channel the flow (Qc) will require a bottom width of
25 feet and a depth of 3.1 feet.
The design of the overflow ditch given above is presented in Attachment No. 88.
.. . .....
. 0.....
: ":. o.
. .... ..
o ...0..
'.
.. .
-23-
..~.' . '0
.', w,"
. .
... .; .1" . 0.". ..' .0 0
. '"7,-1'- .r~:
.. .... .
". -... \..'
0..... ..'
. ~ 00
, "
0.,.. .....
. .,,'. '~".' ..' '. ,
.
e
..-- ----
Flow calculations for 100 year flood event - Drainage Area A10407A
(HCFCD)
The following calculations show the increase of flow from a 100
year flood event in the HCFCD ditch A10407 caused by the
development of a proposed landfill in laPorte, Texas.
Drainage Area A10407A = 1604.2 acres
Q100 (for 100% developed land) = 2800 cfs (refer to area
discharge curve)
0100 (for 0% developed land) = 1110 cfs
Proposed landfill - 80 acres (presently undeveloped)
In order to be conservative it was assumed that the 80 acres to ..
be used for a landfill was the only undeveloped land in area
A10407A.
Before landfill: 80 acres undeveloped (95% developed)
Q100 = 0.95 (2800) + 0.05 (1110) = 2716 cfs
After landfill: (100% developed)
0100 = 2800 cfs
. ~""'.' 0 ." .
...... ... .' ..... . ".0 ~" .". . ,;
. .... ."
...... .
. "'1'
" :.' ":'" : '\ .' .': .... r' 't, .' ....' ",Iff' .-/0,-,;91:1" ,
e
e
......---
,--
AREA DISCHARGE CURVE
100.YEAR FREQUENCY
. ..!'......'
. . ., ,. l.........~ ..
.. ., ...... ..
.
w
o
c:
c:::
......, ::i:
U
II)
C
:.'.i!lli.;':
. r ..., .., . I ! I
... ': ; ! . i'" I ;
,. 'u .',' 1.1, J .1
.- . . . ........ .!-',:r.. : I :
.,oo ~.., " I ,,1.
.';'" , ;'..1.:1,1,;:
., . . , 1"'1"'" "
. " I' I"
I I
"0 . ! ..
j,...:: ;-,
I.. .'
",-.. ..
j' ..,
'" .;:: ::. ':i
'~'
";'
!-
. . . .. . ~ J ';'
. ;.
. ., "0 .
.. .........
f'
.- --' --- _..
I '
" i
~- I
. ;.:
_-.0 :_. _.". _. :_
'\
i ;
. '
~ i
, . ~
. .
I .
. ,I
. :
" :
:'-~--L_!.-. .
I ,I
, ..1.--......
--- --.--.-~ . ,.. i.. ,-1"
. .--.---...1,., .,...t.
~ I --- -
I
II)
~
u
z
, ,
--- ---...
. : : :': =:j ::,. :! .:
. . .,. .. ....
I ,. '. ~.: . . ,I:' ':
- _.~. ---..---
'_ :.: ~ . ._.: . : t. " :
... ..,.. --,
1.CO~
I
~. '..
. . - t-.
:' .:. -:"..;'"
. .,."
.... .. .
....1....':.
~~~.......
"--
I ._...
;.. eO
.. ....-. .
.
;.
------ .
. .. .
..'./..:..
.: : ::,1
---
: I :::: ~ ~:1 ".. ~'
I.,
I
:
i
.'--
,
,. .."....,
. .. , . ..
.... .
I
'I i I,:
· I ,I, !
.. : .; : l.;~.: ; :~~f: ; ;C ;U=;.:~T;:] :~. __ .- ![ : :. ..... .:~t : _ :.~.: l i "-.
", ,.:-,.,'!.' ,:,:.:.J';,.I~i:"I..!.r::.:~:, ';":::.:j
-..!. "'j'" H r 0' "01'
-:~I' ':....:"..':..:1 :..'[:-:': ' ::: T i :: ',:::.,
-..:..:J__.~= ~~..l..:.:::---.:J.:.J_:_J __~__ ~ .0_.0 :~~:'_1._.. ~ _...
...1 .. . .... . .a. I" J I I : . . i j'" I
-. -j .. ,. . ..! . ". .1 . I' I :
, ., ,:.. -" , ',. ',' I, 'I .. ..,. 1 " .. '. I '
,.: ,.j. --L~.~; ':!, _...-::..-.:.....:..~~~~~~;"i_~
.' iO.OOO l~:~',
.... _1..._.
. _I....
. . ~ I I
: ....~ : .:,: __i._._. ~ ..: ~ ,~ i :~j:..~ .:..:. i..~ L.U ..
. ,; ! & t ..1 i
, " l ..., ,
I : ,j ,: .. .I-! ..
... ..... t...
100
iOO
.' ',000
, '
DMAINAGE AREA IN ACRES
..-/
/Ireta.. ::. /60'1, Z a.cres .
a/DO (ioo;: de.vekf'J~j) = zroo c:k
J\. 11/0 eft
q/eJ~ {O'-!; ,,/~o/elo/,~/-
HAP..~'! ':.CL.,~ t:'LO:::" r. ~'"T"':'"". C.!=Tt:L:.-:-
H,'<:'RRIS CO'J'liTY !=:"C'OD ;.lAL.'l. ':0 STL:;"l'.
ClEA~ '.~P.E= < ':.:,':... TF.:-
. L..: \: ,..
~ '.. ',I
.. .: ....
.4"----10-: ~~.,
,
I---
'.
......
"':. "
'" '.0 '.
.... ........ ......
... .t. ....
. . .... ':.
. .. .' .
e
e
r----
Flow Capacity of HCFCD Ditch AI0407 - worst probable case '
The section of the ditch with the smallest area is located at Station
16 + 00 (refer to Ditch Elevation Detail).
Elev. of centerline (sta. 0 + 00) = 3.31
Elev. of centerline (sta. 16 + 00) = 6.11
Avg. slope of HDFCD ditch AI0407 = 6.1 - 3.3 = 0.00175 ft/ft.
1600
Cross-section Area = 615.57 ft2
Wetted Perimeter = 96.6 ft.
n = 0.035, for natural channels
Q = 1.486 A(R)2/3 S1/2
n
R = A = 615.57 = 6.37
P 96.6
Qcapacity = 1.486 (615.57) (6.37)2/3 (0.00175)1/2
0.035
Qcapacity = 3757 cfs
.'. .
." .... :'.
. .....
',' I
.'. ... .'
,6 -./~-::.s: 5
....'..
..." .1.. .
.- . ...
... . ... .. .; ..
......, '. ....... ". .'.
." . ." '. .....
e
e
r---
: E = rGit..J
~~ITE~I~ Fw~ DITCH 1
!.JHE~': :
1 . a.eE:
:2 ./:~i 1 ....2
.... =
~.': ~ ::": R .:.:. ::.
t..J'
G: :: I::F .=.) =...... I . . . . . . . .
DITCH TYPE = .... .......
FREE80~RD ~FT,: = ... '"
~:DE-SLOPE ~H:IO = I' '"
C~Nt-~EL 80-. :~':!PE./. (::;,'1=
J:;.I:ii_:(;Hr'.~E:=,5 ..: ==~ . I. r..J) = ..
;....:ET ::'::--=:E!::7::'. -=:RER (Fi) =
~~TTED ?E~:~=-~~ = .....
~"(C'RAjJL Ie: ~:~:: _::= (R) = .
!...:ELCICIT\o" (FP:::=' .........
c.'Ei:.TH (FT.:: = . I . I . . . . . .
~I7CH WID7H R7 TOF = . I .
...
i
:1, t.1
e
.-, =..':
C. . _'. ...
.0C1
.0::;:=
E.. -+
~:;. e.~
0.7':'
1.\219
., .:
.. '_"
i:i
(1IPRINT-OUT(2IRE-RUNI3lDRRWING
r> ITC:H 1
:;: = 7
I i.J Ii)"'-H = :3 I
... ,/. 1
lL..~ .. c' = 1. 6
2.5. . " . _ '. ' , :.1. , ,
. '. . ' .~
'0:...
-. '. . ....
t'.JeT . :'~~E
.' '.Channel' Cross 'Sections
Attachment No. 88
Sanitary Landfill Permit ?:;:;.:;;~ =~;-_-c--
City of La Porte, Texas
HDR
HDR TED-5ERV. I'C.
. . ~ :. - .'. .' -. .
. .. ..
-0::-
. ' ~. .......
# .-"...
. ........
e
.
r----
~E5:GN :~I7~~I= FOR DITCri ~
:.-.:HE;;'= :
r~= =
:l . 4.,:;~: 2.....:3
.:": ~ :.~ R
.t ,..-.
.. /' .:.
)( ::.
t--J
., ,..:
.. .. .-'
I~! =:CF::.) = :r..:r..........
~ITCH TYFE = . ,.. .......
DITCH SOT. WID:n = . .... ~~
Ft=::EEBOARC:r ~: FT .:~ = ...... 0
SIDE-5LOP= p~7rG = .....
CrlNNEL BOT. :::,!...':iPE ./. ::::;.} =
~:Cl~JI:;Hr-.~E'='~1 ;::C~EF;:. (t..J) = ..
f.oo.IET ::-:: -:=~EC:T IClt..j ;:;REA (R ~ =
~~ETTE~ PERI~E7ER = .....
~yDRHULIC KRDIU5 (R) = .
I...: E L 0 C IT",( :: F t=1~, :: .........
C:'E~:TH {FT.) = ..........
;~ITCH wrDTH ~T TOP = . "
T~~'Z~.~
.-. ..
..;.: .
.coos
.0...:i:.
'3~;. 5.=.
4..2.7~
2.1';
1 ;':'
. ... ,_,
.-. .:;,
.:. . '-'
.4.t .:.
..... . ,_,
~iJPRINT-QJT(2}RE-~UN(3)ORAWIN;
C:r IT =:: r, ;;:
=:1 = ;:4.e;
I
...
lL- ...
:.:r
I
... 1 ,_
. Co = 2.-=,
.. 1
:....1 I[:tTh = 4.:1.8
i,.) IDTH = 25
t'~CIT. ;0 .'5.=t=iLE' .'
. .oo ~.. ..
'. .
. '.'
',.Channel 'Cr,oss,..Sections
Attachment No. 88
Sanitary Landfill Permit Application
City of La Porte, Texa.
HDR
HOR TED-ISERV. I'C.
.: .
7 -/1-,'1
... ....
" :. .
" ...., .
.
e
.....-:--
CE5:GN CR!TEHI~ FOR DITC~ _
:,.,:HE;::E ,
1.485 2/3 1/2
G) = ):: p .:{ ;:: ;-:. ::1
t..J
.. .-.
~~
"I.) .;
::1 I. C:F .=.) = ..............
O!~CH_!YPE.~ ..!.........
F..:EE6:_IHRC' i. r-T . ,; = ......
SIDE-SLOPE HH:!O = " '"
g8U~~~E~~TCO~F~:E~~~ ~5~~
WE7 X-SECTION FRER (RI =
WETTED PERIMETER = .....
H"iDPAULIC PAD IUS lR) = .
VELOCITY (FPS) . .....,..
DEPTH (FT.; = .... ... '" ~
DITCH WIDTH RT TOP = ... 10
Q
'-. !=:. ,.
':"'- ~
.001
.0:35
10
10.77
e. ';"3
1.2
'1IPRINT-QUTl2i~E-RUN(3IDRRUING
r> IT~::H 3
:~: = 12
'.-II. . .-
I i,..IIDTH =:10 I
;::... ..
L. ...f::" =
1 .
2.5 . .
,~..,'
..:. ':'.,
1
~l
.... . ....
- .... ......
NC:T TO SC:RLE
.' .....
Channel' Cross Sections
Attachment No. 88
Sanitary Landfill Permit Application
City of La Porte, Texas
.'
HDR
HOR TED-iSERV. ......c.
."".. .:. . .
.. :. "~/9-
" . .... '. - .... .'
.
e
~ --
)ES:GN CRrT~~:= POR DITCM ~
:._.in=c;:E :
~ = X F X R x ~
1.455 2/3 1/'2
N
GI ! C:F::=) = ..................
~:~CH TvPE = .......... I .
DITCH EOT. ~I~TH = II...
FREESOAR~ i~T,.l = ......
5IDE-5LGPE ~q7~D = . .,..
C~t.'ltj~~ ~;~;T ~ _ ~h2FE · ",.~ (5) =
P'_II_i:~H;'~E::,::o '_,i_ie ~,... !, N) = ..
WET X-SECTION qREA (R) =
WETTED P~PIMETE~ = 11.,.
~Y~R~UL!C RADIUS (R) = I
!).E~CIC: IT"''''' I. t"" ~':=I.' ...... I .. . .
('E!='TH (FT.:: = .............
DITCH WIDTH ~T TOP = .,,
., .:-.:
.. ,-I ,_,
TPPZr:>L
25
\)
.-1 :'.'~
.:... -'. .
.0005
.0::::5
10':0.72
.. ,-, ..,..,
....:.. I ,"
.-! C'''''''
.:... ,_, I'
., _...
J... I J..
:3.. :~I
~1.5
(1;~PI~T-OUT(~~PE-RUN(3)DRAWING
C. IT:::H .:i..
;:;:1 = :1.;=i8
I
..
.
11- ...
2.5
I
_--1
_ [) = ~;.~i
.. 1
I,..! I[:TH = 4.1.5
1,..1 H::-TH = 25
. ',A . "
.....
..
t,j'-;"-, Tn :=.,-:QLE
.. .. ~.'''''_ . '._' _.~.r.~ ,_. ....
.........
'. "," ,"
. ".
Channel Cross Sections
Attachment No. 88
Sanitary Landfill Permit Application
City of L8 Porte, Tex..
HDR
HDR TED-tSERV. NC.
.. .".""
""." ".
'~". .
.... "'.
, 7~/f-;.
. . '.. ':,. ;
,,'
....
..... .
.
~.E3:GN :~:7E;I~ ~QR ~:TC~ -
l...i:-;E~'E:
.
r--~
~,l
1,~eE 2/3 ~~.~
w = X ~ .~ R X 5
:~i. : :_:r-:=: = a I I . I . . . . . I I . .
CI7CH T~/?E = I rl. I... I I I
~I~CH EOT.. WIC=TH = ...., ~
F;:=EE;JAi=:[) (FT I'.: = I.....
E~~~E~Lgb~.P~~5gEi/~ :5;~
F.C::_~:;HNE::.:5 ::::JE~~. ': t..J J = I I
WE~ X-5ECTION ~RE~ (~) =
~=T-~~ PEPIM~TE~ = II.. I
ri ..'~ ~. -. _._ ..:.:: ~:HC:: Ii_L=, (R j = .
l..iEi....:.::_~IT.:. (FFI':I.l ........ I
C. ~F=TH (FT.) = ..........
~ITCH W!DTH MT TO~ = II I
:3::i I ,=.
T~:F'=: _
..,.
"'.
:3: :1.
.O\Z!:::
. 0~1=
1'~ --
'-'. .:.
le: I :~.=
1.1.1.
.~ ""'-
~. ~I"
.. .-.
~ . 1=1
15. ;5
[) IT'::!'! 5
~1}PRINT-OUT(2)~E-RUN(3)D~AWING
Q = 3;:;. e
I
1._J IC'TH = 15 I :3
I
..-1
. Co - -, ~
.- - -1'-
i,..l IC'TH = 5
. . ...... :...-.. ....;-.~C~"T.".. T'.~J .=,C:~L.E. ... . .' ....... . 10....
.' '-
..... .
Channel Cross 'Sections
Attachment No. 88
Sanitary Landfill Permit Application
City of La Porte, Texas
HDR
HDR TED-tSERV. I'C.
. .... ....
.,~ '1'1':"
. . . ". .
... i.'
. '.'
.
.
~ -
~E3IGN C;I~E~:~ ~OR .:7CM ~
:..':;'=;.E :
2,~8E 2/3 1/2
_ = x ~ X R ^ ~
~'.l
(: '" CF ~=,) = I:"" I . . . . . I I . I
~ITCH TY~E = : II ,.,1. ...
F~:EEBO~HD ~F-:; = . II .,,
SrCE-SLOP! HH'!C = . .,..
CHt..H..~EL EiCiT. :=,L.:iPE 1/. (:5) =
;:CIL'I~Hr-.!E5::. t:CIEPF. '.r..J) = I I
WET X-SECTION AREA (M) =
WETTED PE~IMETER = ,.,..
~~'DPRULIC RRDIUS tR) = .
=....ELC1C IT\." (;=~':51) I..... I . .
CEFTH tFT.) = . '" I I....
~:TCH WID-H M! TOP = . "
-
"I,) ..
,""
,,"'
- - .
a::.. ._' . _
.eel
.0.35
6.4-
8. E.2
0.74-
:1.09
.~ .::
~ . '-'
~1IPRINT-OUT(2)FE-RUN(3!DRAWING
D !TC'H 6
i;l = 7
I !,-.iIC'TH = 0 I
... .. 1
. ..
L .. · D =. , '.
1 2.5 ...~. "1
t'lDT ~o :~CALE
.. .: ....
. .' ~. ..'
'. ._. 0 .
,Channel Cross Sections,,'
Attachment No. 88
Sanitary Landfill Permit Application
City of La Porte, Texas
HDR
HOR TED-tSERV. NC.
~ . ~ .
....
. , ..., _1''1__ ,j
'l . '. o. . '.
.
.
~--=-~
. .
:E~IGN SRI7~::= =~? D:TCM -
I...:ro;:::~= :
.:1 =
1: .:L.ee.
.-. ..-.
.:. / ..;.,
1..' .:.
:.- =: .,": r:;;
:..:: -
r'~
C "CFE) = "Zl~"""'"
[~:TCH T"(FE = . r ,.,1.....
C', :7CH E::JT. '...: :::.;~ = .....
FR~EBOPRD .{~7.~ = . 11'"
SIDE-SLOPE ~ATrO = .....
C:HNt-.jE~ B:J7. :=':...:Ji='E a/a (:=.) =
~:C:LiGH~.~E~I:=~ ;:':::E=~. (t'.J:i = ..
i~~T X-3ECT:ON ~RER (RJ =
WETTED PE~I~E~E~ = .....
M~~RRULIC PQDIU5 (R) = .
I...!=LOC: IT\'" :: F~' =.: .........
(:. E F:T H I. FT .'~ = ..........
~~TCH WrDTH ~T TOP = . II
1~;7 . !S
T;::;~PZ~>:....
25
;)
'-:" .,
.0005
.0~:5
89. ::;""7
.;.2. C.::
.:........:.
., :.01
.... -'~
,-, ..,.
.:.. ,-
.;., .-:
.....~
:~IPRINT-OUTt2lCE-RUN(3)CRRWING
[) ITC:~ '7
I:: = 1::;.7.5
I,..! rC"-TH = 25
I
_--1
lie. =2.7
-- 1
I
..
'..
i~"
,,j
=...1 I [;:- ~ = J,.:1. 2
-.-- --
t-tl_! i ! Li
=.C:i=iLE
, , ..'
.;.... o. .
"0.. .
........
'. ,
. .: 0,
0...
. .'.:.. ;:
Overflow From Ditch 2
Channel, Cross Sections
Attachment No. 88
S8nlt8r, Landfill Permit Application
Clt, of La Porte, Tex..
HDR
HDR TED-tSERV. NC.
" ':.
. r .. '0. ~ .'. ,0
"0"; 0 o.!. 0'. .... ., .._.
, 7-1,-,V~
.
.
....- --
~.E~:GN :~!TER!; ~J~ DITCH ~
;....li-!=:t:;=
i,;.! = .' - '0;; ::": '-
i.4~5 2./2 ~./~
H
I~: (s::F -=,,! = ...,..........
i:> ~T C: H T\";:' E = r I . . . . . . . . .
:!TCH BOT. WI:~H = II...
FRE~60HRD (FTz; = ......
~TnE-~LOPE ~~77~ = II...
'='rl~J.;jE'- E=:-,.... ":=.= ,=;F'~ .... i ': 'I -
~6~~H~E5~'6o~=~.-~~' ~~~~
WET X-SECTION ~REH (R) =
WETTED PEHIMETE~ = .....
H~(DR~ULIC RRDIU3 (R) = .
i....=Ei-C:C: IT'..( :: F~"5 ,! .........
[:IE~'TH (FT.::' = ..........
DITCH WIDTH AT T~F = ...
.,-,,,,: =
..:" -' . --
;~~~' ::'--
25
Q
.-. c-.'-
.:. . -' ...
.000':
.0:':::5
10:.52
4-1.e.::
-. .."
.::..-....
., -.,
..... I ~
",,0 ".
"-'. ..;..
40.=
~lJPRINT-OUTI2:RE-RUN(3)DRAWING
:-'.T"T".-._ .:.
L'" .. ! "_'!! '-t
..I = :l 7:3.5
t-J IC.TH = Joe. 5
I
..-1
. D = 3.:1.
.- 1
I
.....
1~ .
c..5
I...!IC'TH = 25
NOT TO 5Cf=iLE
. .'
.. . '.. !..... ".. .".
... ...... .. "~-:' .'
'. . .
'. . ~ I" .
'", . ....
Overflow From Ditch 4
. .
Channel Cross Sections
. Attachment No. 88
Sanitary Landfill Permit. Application
City of L. Port., Tex..
HDR
HOR TECHSERV. NC.
.' .'. ~ . .'
". .....
...... '. ".
'. ,,7_IP-