Basics of the Basin Proceedings 1994

CONTENTS
.2
51
P O N T C H A R T R A IR
NE S E A R C HC O M M I T T E E
(PRC)wasformedrn 1992shonlyafterthe firsi
The Pontchartrain
researchcommittee
'oT:Te
waS'lelO The plannlr:gCommrttee
Sy.npoSr,lm
"BaSiCS
Ofthe Basrn"rcSearcn
of tne
Oflnltlal PRC The overallmlSsron
firstmeetingformedthe cOremembershlp
by
Basrn Thrsrs acccmplrshed
PRC iSio promotegoodscrencefor the Pontchanraln
forurns
ln
or
other
Screntific
symposra
network
by
fosteringan effeclivescientifiC
urbanrlnoff was
a forumaddreSslng
additionto the Easrcsof the 8as/nSymposrums,
h
a
v
e
c
a l l e du p o n I n a n
a
l
s
o
m
e
m
b
e
r
s
b
e
e
n
h e l d i n D e c e m b e r1, 9 9 2 . C o m m i t t e e
groups Thjscommrltee
andenvironmental
advisorycapacityto vaflousgovernmental
project
proposalsrelatedlo lne
to
consrder
is
wiiljng
and
plansto continueto be active
basin. We will continueto work closelywith the scinetificcommunrlyand wrth
atchadrain Basin We also
groupswhoseprimaryconcernis the POntCh
envtronmental
b
mn a b i - a n n u a la s i s W E H O P ET C S E E
t o h o l dt h i ss y m p o s r u o
i n t e n dt o c o n t i n u e
YOUIN 1996I
IVIEMBERS
COillfuIITTEE
CURRENT
MichaelPoirrieialtemateJohnBurns
of NewOrleans
Universrtv
of
Bioiogical
Sciences
Oept.
w 286-7041
Far 286S1
N€ilArmingeon
LakePontcharttain
BasinFoundation
PO BOX6965
tv'letairie.
La. 70009
w 836-2215
Fax 836 7283
chairman
John A. Lopez-committee
La.70456
387CarrOr. Slidelt,
w 586-2867
H 847.1E89
Fax 586-2834
Dr. GeorgeFlowers
TulaneUniversity
GeologyDept.roomno.
w 865-5196
Fax 6b:-:foz
Dr.SheaPenland
Centerfor CoastelEnergyand
Resources
Environm€ntal
State
University
Lousiana
Rouge,
70E03
La.
Eaton
(504)
38E-E670
w
Fax (504)38E-5328
Or.Al Knecht
CenterUrbanWasteMgt Research
UNO
w (504)286-6644
rar (504)286-7413
Dr.DonaldBarbe'
CenterUrbanWastelvlgtResearch
UNO
w 2E6-7062
fax 286-7413
MarkDavis
Coastal
Louisianato Restore
Coalition
Execstive
Oirector
w (504)766-0195
|- r00-uz<Y
Dr. Robert H.stings
TurtleCove BioiogicalResealch
Station-Director
SoutheasternLousianaState Universrty
w (504)549-21a1/549-3740
Fax (s04)549-5092
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F U N D I N GA N O S U P P O R T
Financialsupportfor the Easicsof the BasinResearchSymposiumwas genercLsy
receivedby the followingorganizations.
U . S . G e o l o g i c aSl u r v e y
BasinFoundation
Lake Pontchartrain
Coalitionto RestoreCoastalLouisiana
Resources
Centerfor CoastalEnergyand Environmental
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supportwas providedby:
Criticaladministrative
Universityof NewOrleansMetrocollege
BacinFoundatlon
LakePontchartraln
Specialthanksgo
Anne Jakob. LouAnn Morehouse,Jeff Williams
1 9 9 4B A S I C SO F T H E B A S I NS Y M P O S I U M
AGENDA
T H U R S D A Y M A Y2 6 1 9 9 4
800
I N T R O D U C T O RCYO M [ / E N T S
Pontchartraln
ResearchCommittee
John Lopez
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=======
8 . 15
E F F E C TO
S F U R B A NR U N O F O
F N B E N T H I ICN V E R T E B R A TA
E S E A R C IT C R
FACTORS,
CAUSAL
MichaelA. Poirrier
Universitv
of NewOrleans
CaseyJ. Rowe
8.40
ENVIRONMENTALSESSION =======
FLOWERS
C h a i r ebdv G E O R G E
University
of New Orieans
A N A L Y S I SO F F E C A LC O L I F O R M
CONCENTRATION
OSF T H E S O U T HS H O R EO F
L A K EP O N T C H A R T R A I N
DonaldE.Earbe'
University
of NewOrleans
JohnC. Francis
University
of NewOrleans
S D. Seenappa
of NewOrleans
University
9:05
S T O R MW A T E RC H A R A C T E R I Z A TAI O
ND E S I G N
ND
C O N S I D E R A T I OFNOSRA N
ARTIFICIAL
WETLANDS
EASTRUNOFF
SYSTEMFORNEWORLEANS
A
I
F.nla^.i.
lr
TulaneUniversity
Deptof Environmental
HealthSciences
Burk-Kleinpeter,
lnc.
C U R R E N TS T A T U SO F T H E S T O R I V I W A T T
T R O J E C TA T T H E
ER
RE A T M E N P
BONNABELEOAT LAUNCHIN fuIEIAIRIE,
LOUISIANA.
SteveGorin
9.55
10:20
10.35
LakePontchartrain
BasinFoundation
J E F F E R S OPNA R I S H
H I G HS C H O O LW
S A T E RQ U A L I T S
YT U D Y ,
RobertA. Thomas
Society
for Environmental
Education
DinahF. Mavoarden
Education
Societyfor Environmental
R. Scott
Education
Societyfor Environmental
-------- BREAK -----A S S E S S M E NO
T F IVETALS
I N W A T E RA N D S E D I M E N T ISN
ANDORGANICS
SELECTEDSITESALONGEAYOUTREPAGNIER.
W. J. Georoe
Mary B. Anderson
JenetE Preslan
Steve Adams
TuianeUnrversity
of Pharmacology
and Anatomy.
Schoolof tvledicine,
Departments
NewOrleans,
La.
4
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W a y n eC i s p h o r d i n g
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T H U R S D A yc o n t r n u e d
T R A N S P O ROTF HEAVYMETALSINTOLAKEPONTCHARTRAIN
VIA OUTFALL
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Universityof SouthAlabarna
AM E R1VERWATERQ U A L I T YT R E N O S
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C I T I Z E N SI /' O N I T O R I N G
I N T H E L A K EP O N T C H A R T R ABI N
ASIN
CliffordM. Kenwood
LakePontchartrain
BasinFound€tion
12.15
P R E S E N T A T I OiN
LUNCHEON
n Eailroom
BY
RICHARDMILLER
ANALYZING COASTAI PROCESSES:
REMOTE SEA'S'T.'G
AND FIELD MANAGEMENT
= = = - = = = = = =E C O L O G YS E S S I O N = - = = = = = = = =
AS
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C h a i r ebdy R O B E RHTA S T I N G
T H EO Y S T ER
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ST H EP O N T C H A R T RBAAIS
NI N .
RE S O U R CO
RobertAncelet
John F. Burdon
LouisianaDepartment
of wildlifeand Fisherres
LouisianaDepartment
of Wildlifeand Fisheries
RECENTRENDS
I N W A T E RC L A R I TO
Y F L A K EP O N T C H A R T R A I N ,
JohnC. Francis
of
New
University
Orleans
MichaelA. Poirrier
of NewOrleans
University
2:50
Q,!t
S U B M E R G EADO U A T I CV E G E T A T I O N
C.U R R E N T
S T A T U SA N O R E S T O R A T I O N
RESEARCH
of NewOrleans
JohnBurns
University
KrisPreston
ot NewOrleans
University
MichaelA, Poirrier
Univefsityof NewOrleans
--------BREAK------ON
T H EI N T E R A C T I N
I CN DA U T O G E N IACG E N T S
EG
F F E C TO
S FA L L O G E N A
(taxodium
PONTCHARTRAIN
BASIN,
lN
THE
BALDCYPRESS
distichum)
LAKE
i/ANCHAC,LOUISIANA,
MichaelC, Greene
Louisiana
University
Southeastern
RandailS. Myers
Louisiana
University
Southeastern
Louisiana
GaryShaffer
University
Southeastern
355
CONT
u IENd
THURSDAY
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P C N T C H A R T R A IENS T U A R Y
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U S. Army Corpsof Engi.eers,PlanningDivtston- New OrleansDrstrrcl
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of Entomology
Department
R i c h a r dA . G o y e r
of Entomology,
LSU
Department
G e r a l dJ . L e n h a r d
M O V E M E N TO F H E A \ I / M E T A LC O N T A M I N A T I OONU T O F B A Y O UT R E P A G N I E R
R. Bu Contreras
LynnV, Koplitz
F
ri^ H^nkinc
Joy Green
J Michael.Smith
Lanier
Catherine
RemingtonGross
J Oillon
La.
NewOrleans.
Loyo{aUniversity,
of Chemistry,
Department
B IANS I N
L O S SI N T H EP O N T C H A R T R A
WETLAND
NewOrleansDistrici
Corpsof Engineers
Del Britsch
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BIANS I N .
R T R U S I OI N T H EP O N T C H A R T R A
L O S SO R S A L T W A T EI N
Lia Yoste
Del Britsch
SuzanneHawes
BillBerry
JohnLopez
Basin
for the LakePontchartrain
Intrusion
WotlandLoSsCommittee
Saltwater
Foundation
ALSOON D/SPLAYWLL 8E STUDENTARTFRQMTHE"ART ON THE LAKE"
EASIN
8Y THELAKEPONTCHARTRAIN
PROGRAMCOORDINATED
WITHTHENEW
COORDINATOR,
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ANDWATERBOARD
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SURVEY,
PROVIDEOBY THE U. S. GEOLOGICAL
F R O M4 : 3 0- 7 : 3 0
(see Registration
deskfor flyerwith map and details)
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AN
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ANDFUTURE.
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s e w O r t e a n sD r s t .
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UNO - CivilEngrneeflng
D o n a l dE . B a r b e '
U N O- C i v i lE n g i n e e r i n g
8 50
T H E L A K EP O N T C H A R T R AEI N
A S I NF O U N D A T I O NC' SO M P R E H E N S I V E
M A N A G E M E NP
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V I S I O NO F T H E B A S I N
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Lake Pontchartrain
BasinFoundation
r
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9.15
COMPREHENSIVE
ESTUARTNE
MANAGEMENT
FRAMEWORKTHE BARATARiAT E R R E B O N NC
E A S EH T S T O R Y
WarrenR. Flint
of New Orleans
EnviroPlanning
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CharlesR. Garrison
Oivision,
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U.S.Geological
Survey,WaterResources
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LOUISIANA.
lN LAKEPONTCHARTRAIN,
ALGALGROWTHPOTENTIAI
Survey,BatonRouge,La.
DennisK. Demchek
U S. Geological
Survey,
BatonRouge,La.
BentonD McGee
U.S.Geological
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11:35
BY
TO LAKEPONTCHARTRAIN
)MPACTS
ASSESSMENT
OFWATERQUALITY
T H EB O N N E C
T A R R ED' I V E R S I OPNR O J E C T .
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USArmyCorpsof Engineers,
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PRQJECT
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U S A r m yC o r p so f E n E r n e e r fs' l e wC r l e a n sD i s t
E u r n e lTl h i b o d e a u x
BY
MIKE I.IIRSHFIELD
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THE CHESAPEAKE
B A YC L E A N U P .
AN ONGOINGEXPERIMENTIN ECOSYSTEMMANAGEMENT
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C h a e d b y S H E AP E N L A NA
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Centerfor CoastalEnergyand Envtronmental
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ON SEDIMENT
EFFECTS
OF STORMEVENTS
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N O R T H E RG
NU L FO F M E'ir.e.td"i;
of Southern
ceorogy-ceography,
University
waynec. lsphording
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TulaneUniversity
of EarthSciences,
GeorgeC. Flowers
Department
D A T AF O RH A Z A R O O U S . I
A U L TD E T E C T I OUNS I N GS E I S I / I C
S U B S U R F A CFE
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BAPTISTPARISH,LOUISIANA.
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EdwardV. Zinni
CNG,NewOrleans,La
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LUNCHEON
SPEAKER
T H U R S D A Y M A Y 2 6 1 24 5
D r R i c h a r dL . M i l l e r
S t e n n r sS p a c eC e n t e r
ANALYZING
C O A S T A LP R O C E S S E S
R E M O T ES E N S I N GA N D F I E L DM A N A G E [ / E N T
BIOGRAPHY
wherehe
at NASA'S
Stennis
SpaceCenterin Mjssissippi
Dr Milleris an oceanographer
I
sucfLas physlcal'bl0logrca
conductsresearchin varlousaspectsof coastalprocesses
Duke
a LS. in zoologyat
interface.Dr. Millerreceived
interactions
at the Land/Sea
at Louistana
an M.S.rnApplled
StateUniversity,
an M.S,In MarineSciences
University,
fromNorih
Ph.O.
rn
and
a
Oceanography
elsoat Louisiana
StateUniversity,
Statistics,
positionwtththe U S G S tn
CarolinaStateUniversity.Dr. Millerhelda post-doctorate
jn 1987
Center
to
Space
Ca.beforecoming Stennis
San Francisco,
S P O N S O R EBDY T H E
RIENS E A R CCHO M [ T I T T E E
PONTCHARTRA
LUNCHEON
SPEAKER
F R I D A YM A Y 2 7
1:00
- D r . M i k eH i r s h f i e l d
C h e s a p e a kBe a y F o u n d a t i o n
THE CHESAPEAKE
B A Y C L E A N U P. .
A N O N G O I N GE X P E R I M E NITN E C O S Y S T E M
MANAGEMENT
BIOGRAPHY
hasbeentheSeniorScience
Advisor
withtheChesapeake
Dr.Hirshfield
BayFoundat
on
he providesexpertscientific
and policyinputIntothe
since1990. ln that position,
Hehasbroadexpeflence
andimplementation
of CBFprojects.
Ina number
development
nonpoint
nutflent
andpolicyareas,in particular,
sourcepollution,
andtoxic
of technical
pollution,
fisheries
management,
air quality,
energy,
andestuarine
ecology.
for
of NaturalResources
Beforejoiningthe CBF,he waswiththe MarylandDepartment
years,
Monrtoring
seven
servingas directorof the Chesapeake
Bay Researchand
Program.Priorto workingfor the stale,he
Divisionand Directorof the PowerResearch
He
ResearchLaboratory
in Southerni,4aryland.
was directorof the BenedictEstuarine
fromthe University
in 1977
received
his Ph.D.in Zoology
of Michigan
S P O N S O R EB
DY T H E
RESEARCHCOMMITTEE
PONTCHARTRAIN
10
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t
T H EO Y S T E R
R E S O U R C EOSFT H EP O N T C H A R T R ABIANS I N
Department
of wildlifeandFisheries,
New
R.,Louisiana
Ancelet.
O r l e a n sL,a . ,a n d B u r d o nJ,. F , L o u i s i a nDae p a r t m eonftW i l d l i f e
s ,l i d e l L
l ,a .
a n dF i s h e r i eS
withinthe Pontchartrain
Basinis limited,dueto salinity
Oysterpropagation
regimes,to four parishes: Orleans,Jefferson,
St. fammany and St
primarily
oysterfisheryis
a privatelease-based
Bernard.The Louisiana
industry,however,largeareasof publicfishinggroundssuch as those
foundin the basinprovidea sourceof sackoystersfor marketand seed
to privatelyleasedwaterbottoms.
oystersfor transplant
The publicoystergroundsare discussed
with emphasison the dynamic
physical
and
conditions
environmenlal
that are conduciveto desirabie
whrch
oysterhabitatand productionAnthropogenic
andnaturalprocesses
of
impactthe quality,distribution
and production
of the oystercommunities
deliberated
the basinare
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DIVERSIONA POLITICAL
THE BONNETCARRE' FRESHWATER
HISTORY
BaslnFoundatron,
Metairie
NeilA.,LakePontcharlrain
Armingeon,
La.
(COE)has beenresponsible
for the
The U S ArmyCorpsof Engineers
civil works prolects
of numerouslarge-scale
designand construction
pro1ect
in SouthFlorida,
River
of theseincludethe Kissimmee
Examples
Alabama,
andthe
in Mississippi
and
Waterway
the Tennessee-Tombigbee
RiverGulfOutlet(MRGO)in Louisiana.
Mississippi
While many of these larg+scale projectsfailed to live up to preconstructioneconomic expectations- and ended up harming the
theyv/eredesignedto enhance' all beganwiththe helpof a
environment
champion,or champions,in the U.S. Congressto pushfor authorization
processis directedby
funding.Whilethe authorization
and subsequent
legal statute,each civil works project'soriginis uniqueto that prolect
the originof the proposedBonnetCarre'
Uiing historicaldocumentation,
Diversionprojectis examined.
Freshwater
Although the proposeddiversionprojed is located in Louisiana,it
originaiedin coastalMississippias a small,locelized,privatelyfunded
study. Throughthe next20 years,it evolvedinto one of the nation'slast,
larg6Army Corp'scivilworksprojects 9y9t its ,50yearlife,the diversion
wili cost ihe nation'staxpayersover $200 million The historyof the
maneuvering
on thepolitical
is tracedwithan emphasis
proppsed
diversion
duringtheprqect'sformativeyears
thatoccurredin Mississippi
BARRIERSTO A CLEAN LAKE? A
ARE THERE REGULATORY
H O L I S T IA
CP P R O A C H
of NewOrleans
Barbe'O.C.,CheekR. , andBarbe'D. E.,University
we will considerhow and why regulatorypoliciesIn this presentation,
and Control"policiesof
createbarrjersto a cleanlake. The "Command
problemsand do not
regulatoryagenciesfocus on "end-of-the-pipe"
sustainablepollutionpreventionat its source. These
su-pportlong-1erm
thatsupporta cleanlake
fixesdo notjustifylong-termsolutions
short-term
proactive,innovative,and flexible regulatorypoliciesthat consider
to achieveand maintain
solutionswill be necessery
adaptable,resourceful
a cleanlake.
agencieswhoseactionsmay
our focuswill be on threeareasof regulatory
result in the creationof barriersto pollutionPrevention.First,we will
employeein termsof tenureand
examinethe typicalprofileof a regulatory
iuOie.t knowiedgeof the diverseprocessesunder their direct control.
Seiondly,we wili examineregulatorypoliciesthat inhibrtthe development
sound waste
of economicallyand environmentally
and implementation
reductionactivitiesby industry. Finally,we will addressthe permltting
and cross
the effectsol singlemedia'multFmedia,
processby contrasting
development'
on sustainable
mediapermitsandtheirconsequences
of a "holistic"approach
witha discussion
we will concludeourpresentation
andits longtermeffectonthe laKe'
to pollutionprevention
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MO N C E N T R A T I OONNST H ES O U T H
A N A L Y S IO
S F F E C A LC O L I F O RC
S H O R EO F L A K EP O N T C H A R T R A I N
, r a n c i sJ,. C . ,P h . D .a n dS e e n a p p S
BarbeD
' , E P h . D P . E .F
a,
of CivilEngineering
andBiological
D.,Department
Sciences,
of NewOrleans.
University
is a largeshallowembayment
locatedin the southeast
LakePontchartrain
partof Louisiana.Thesouthshore
of the lakehasfecalcoliformcountsthat
exceedthe acceptablelevel for primarycontactrecreation The major
source of the fecal coliformis believedto be urban runoff from the
NewOrleans
area.
metropolitan
by differentprecipitation/runotf
The clirnateof the area is characterized
mechanismsfor the summer and winter seasons. Becauseof the
eveporation,
and transpiration,
combinedeffeclsof precipitation,
runoffis
greaterin the winterseasonresultingin higherfecal coliformcountsin
Lake Pontchartrain.Runoffusuallyis lowerin the summerseasonand
fecalcoliformcountsin the lakeare lower.
The objectiveof the studywas to modelthe relationship
betweenfecal
environmental
faciors.
Multivariatestatistical
coliformlevels and other
in Lake
analysisof historicaldataon fecalcoliformbacteriaconcentrations
Pontchartrainand concurrentwater quality and climatic data were
performed.Water qualityvariablesincludedtempereture
and salinity
precipitation.
Predictive
included
wind
speed
and
Climaticvariables
werederivedandcompared
to currentdata.
eouations
P O L L U T I O NP R E V E N T I O NA N D E N V I R O N I V l E N TE
AD
L UCATION
E F F O R T ISN L O U I S I A N A
Cooperatrve
Eranch,BillandCorejl,Paul,Louisiana
Extension
Center,
LSUAgricultural
BatonRouge,LA
Service,
The PollutionPreventionAct of 1990 encouragedreview of current
practicesto find alternatives
whichreducenegetiveenvironmental
impacts.
EPA Region6 staff promoteeffortsaddressingpollulionpreventionand
one office is specificallyfocusedon these efforts. PollutjonPrevention
havebeenconductedin all five statesincludinoone In Baton
Roundtables
Rougein June,1993.
provisions
Phase1 of the stormwater
of the CleanWaterAct (CWA)calls
Prevention
Plans(PPP)whjchincludesetsof
for development
of Pollution
(BMPs)
BestManagement
Practices
to reducecontamination
of runofffrom
certain businesses,industriesand large municipalities,Phase 2 will
presumably
extendtherequirement
to moreandsmallerentities.
The ConfinedAnimalFeedingOperationGeneralPermilissuedunderthe
CWA calls for PPP conteiningEMPSto reducepointsourcedischarges.
The LouisianaNonpointSourceManagement
Plan developedby DEQ,
otheragenciesand industryunderthe CWAcailsfor the adoptionof BMPs
to reducenonpointsourcewaterpollution.
(CZARA)call for the
The CoastalZoneAcl Re authorization
Amendments
developmentof a nonpointsource managementplan. Jt will require
practices"which
adoptionof "management
measures"and "management
Plan will
are simila|to BMPS. The DEQ NonpointSourceManaeement
Pian.
coincidewiththe CZARANonpointSourceManagement
lntensiveeffortshavebeenundenrvay
for 18 monthsby an eltensiveset of
to develop
committeescomposedof agencyand industryrepresentatives
sets of BMPs whichwill reducecontamination
from nonpointsourceand
industries
stormwater
These
runoff.
BMPswill be availableto businesses.
andmunicipalities
for theiruseas needed.
to conducteo...:ational
DEQ has contrac{edwith firms and universities
programswith public officials,householders,
farmers,foresters,land
ownersand smallbusinesses
on the useof BMPsto reducecontamin€tion
from runoff. Otherenvironmental
educationeffortsare beingconducledby
primary, seconclary ancl post-seconderyeducational institutions,
publicagencies,and professional,
civic and
businesses
and industries,
by
social organizations.These programsimprovethe understanding
citizensof the needto orotectthe environment
andreducenonpointsource
pollution.
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Pollutionprevention
and environmental
edlcationare two efforlsreceiving
a majorinvestment
of time and energyby a wide varietyof publicand
privatesectorprofessionals
in Louisiana.This expenditure
will resultin
significantchangesin attitudesand practicesand the improvementof
Loursiana's
environment.
I
RENDS
I NT H E
O F S E L E C T EBDI R DS P E C I E S
W I N T E RP O P U L A T I OTN
ESTUARY.
LAKEPONTCHARTRAIN
G andBAIRD,BruceH U S. Army
BRANTLEYCHRISTOPHER
Planning
NewOrleansDistrict,
P.O
Division
Corpsof Engineers,
, e wO r l e a n sL,o u i s i a n7a0 1 6 0
B o x6 0 2 6 7N
the early
BardCounts(CBC)provideusefuldatafor evaluating
Christmas
of manyNorthAmericanbird species.
and distribution
winterabundance
from
analyzed
for the 3 countsin the Lake
1988-1992
were
CBC data
Carre, and St.
estuary:New Orleans,Reserve-Bonnet
Pontchartrain
TammanyParish,Louisiana. Countcircle (7.5 miie radius)locations
throughout
the periodof analysis.Fourteenspecies
remainedunchanged
habitatsin the areawereselectedfor analysisbased
thatutilizeopen-water
in the estuarine
and relativeabundance
upondegreeof habitatutilization
the counts,datawere convertedinto numberof
system. To standardize
(Schreiber,
1973,American
R.W.andE.A.Schreiber,
birdsper partyhour
positive
rank
analysjs
indicates
conelation
Spearman
Bnds27:711-715).
and 6 deptcting
negativetrencts.
trendsfor I of the'14 speciessurveyed
data revealsignificantpositiveand
Linearregressionof log transformed
negativeslopesfor osprey(Pandlonhaliaeetus)and lesser scaup(Aythya
of prey within
changesin the ebundance
respectively.Short-term
afftnis),
to recentwinterbird population
the estuaryare believedto be contributing
trendsin the estuary,
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A Q U A T I CV E G E T A T I OINN L A K E P O N T C H A R T R A I N
SUBMERSED
RESEARCH
CURRENT
STATUSANDRESTORATION
Preston,
K.
P.
and
Poirrier,
A,
Burns.JohnW.!r.,
Michael
of NewOrleans.
University
(SAV)in theLakePontchartrain
aquaticvegetation
Submersed
estuaryhas
r50%
by
since
1973.
declined
Changes
in adjacent
landuse,urbanrunoff
and shorelinemodificationsare believedto be responsiblefor the
declineof SAV. Meteorological
continued
eventsare alsobelievedto be
responsiblefor temporalfluctuationsin SAV foliar cover. Species
and communilystructureweredetermtned
composition
at five permanenl
placed
sites
along
five
randomly
monitoring
transectsduring1991,1992
and 1993. SAV foliarcoverwas stratifiedby waterdepth,substratetype
and the presenceor absenceof shetl (Rangia cuneata)along each
transect.In addition,SAVtotalaerialcoverwas determined
for the entire
littoralzoneof the estuary.
AlthoughSAVtotalaerialcoverfor the estuarydurrng1991was 88 na \217
acres),it was reducedto 26 ha (64 acres)whencorrectedfor patchiness
a 170lo
declinein aerial
and baregroundwithinSAVbeds. Thisrepresents
events
were determinedto have a
cover since 1985. Meteorological
significanteffecton SAV in Lake Pontchartrain.SAV aerialcover was
on the northshoreafterHurricane
Andrew(August1992)
reducedby 74o/o
and by 95% on the southshorefollowinga severewinterstorm(March
by an increasein
1993).SAV recoveryfromthesestormswasexemplified
foliar cover to pre HurricaneAndrewlevels by July 1993. Although
and an increasein foliar coveroccurred
changesin speciesclominance
following these meteorologicelevents, SAV have not recoveredfrom
duringthisstudy.
disturbances
anthropogenic
A cooperativeeffort betweenthe Universityof New Orleans,Lake
Pontchartrain
Basin Foundationand citizenvolunteergroupshas been
A pilotstudyis currently
to restoreSAVin LakePontchartrain.
established
techniqueslo( Vallisneriaamericanatn
underwayto test transplanting
populations
or eliminated.
havebeenreduced
areaswherehistoric
It
E F F E C TO F M I S S I S S I P PRII V E RO N W A T E R Q U A L I W I N L A K E
PONTCHARTRAIN,
LOUISIANA
R U.S.Geological
Charles,
Demas.CharlesR. andGarrison,
Resources
Division,
Rouge,
Baton
Survey,Water
La.
Duringthe springfloodin 1979of the lowerMississippi
River,the U S.
openedthe gatesof the BonnetCarre'Spillway
ArmyCorpsof Engineers
to divertsomeof the floodwatersfromthe riverintoLakePontchartrain
as
part of the normalflood protection
measures. Dischargeto the lake
throughthe BonnetCarre'Spillwayrangedfrom 49,000to 250,000cubic
feet per secondduringthe periodApril20 to May 20, 1979. Concurrent
the U.S.Geological
withthisoperation,
Surveyanalyzed
dailywater-quality
part
from
10
samples
locationsin the lakeas
of a cooperative
agreement
withthe U.S.ArmyCorpsof Engineers.SampleswerecollectedfromApril
16 to June'14 and analyzedfor physicalcharacteristics
such as pH,
specificconductance,
dissolvedoxygenconcentrations,
turbidity,andcolor;
major inorganicions nutrients;
tracemetals;pesticides,
fecal and total
coliformbacleria;andchlorophyll.
datacollectedin the lakeduringthis 50-dayperiod(April 16
Water-quality
to June 14) were comparedto data collectedpriorto the openingof the
Spillway (1974-March,1979) and after its closure(1980-84). These
comparisons
indicetedthat diversionof MississippiRiverwater into Lake
resultedin thefollowingwater-quality
changesin the lake:
Pontchartrain
a
concentrations
increased.
Chlorophyll
Nutrientconcentralions
increased.
Bacteriacounts(bothfecalandtotalcoliform)decreased.
(bothtotalandfiltered)decreased.
Tracemetalconcentrations
Concentrations
of 2,4-Dincreased.
Turbidityincreasedat 2 sitesand remainedthe sameor decreased
at 3 othersites.
The observedeffectsof the BonnetCarre'FreshweterDiversionon the
water gualityof Lake Pontchartrain
duringthis periodprobablyare not
representative
of the effectsthai mightbe expectedunderconditionsof
lowerflows. The largedischargesduringthis period(49,000to 250,000
cubic feet per second)greatly exceededthe dischargesat which the
diversronstructurewill be operated(6,000 to 30,000 cubic feet per
secono).
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{N LAKEPONTCHARTRAIN,
ALGALGROWTHPOTENTIAL
LOUISIANA.
S E P T E M B E1R9 9 3
Demcheck,
DennisK.,andMcGee,BentonD . U S Geological
Survey,
BatonRouge,La.
In the summerof 1993the U.S.Geological
Survey,U.S.Army Corpsof
and U. S. Wildlifeand Fisheriesconducted
Engineers,
a water-quality
conditions
in Lake Pontchartrarn,
investigation
of nutrientand biological
describes
onecomponent
Louisiana,Thisabstract
of the study,the effect
populations,
Riveron algal
andtheMississippi
of tributaries
The data collectionperiod,for this aspectof the study,September9and relatively
October1, 1993,was a periodof highwatertemperatures
in the Mississippi
River.The dissolved
highnutrient
concentrations
nitrite
plusnitrateconcentration
in the riverwaterduringthis periodwas 1.4mg/L
phosphorus
per
concentration
was0.12
(milligrams liter)andthe dissolved
in the middleof the lakeduringthis period
mg/L. Nutrientconcentrations
in the lake
weremuchlower,the dissolvednitriteplusnitraleconcentration
phosphorus
concenlration
waterwas lessthan0.05mg/Landthe dissolved
was0.02mg/L.
Algal GrowthPotential(AGP)testswere performedat 18 sites in Lake
River.
andat one siteon the Mlssissippi
and its tributaries,
Pontchartrain
inflow
to the
The sitesselectedfor samplingincludedthe majorsourcesof
canals,
andareasof thelake,werealgal
drainage
lake,severalstormwater
in thepast.
bloomshaveoccurred
was addedto
capricornutum
In theAGPtests,thegreenalgaSelenastrum
inoculated
with
were
samples
water
and
these
filteredsamolesof native
nitrogen and
nutrient solutions containingvarious concentrations
phosphorus. The tests were designedto determineif nitrogen'
phosphorus,
of the hflonutrientsis limitingalgalgrowthin
or a combination
thesewaters. Threereplicatesof eachnutrientadditionwere includedln
controlsamples.AlgalgroMhrnthe
the tests,as well as a set of untreated
for 10-12days.
sampieswasmonitored
treatedanduntreated
A separatetest was designedto simulatethe mixingthatwill occurduring
diversion.In this
the operationof the proposedBonnetCarre'freshwater
test, waterfrom the MississippiRiverand waterfrom Lake Pontchartrain
were mixed to form two test solutions,one containing50 percent
Riverwaterand50 percentlakewaterandthe othercontaining
Mississippi
1Opercentriverwaterand90 percentlakewater. Algaefromthe riverand.
the lake waterswere identifiedand enumerated.Triplicatesamplesof
and the two mlxed
River,LakePontchartrain,
waterfromthe Mississippi
I
for 5 days at 25 degreesCelsiusunder
solutionswere then incubated
aigaejn thesampleswereagain
light.Afterthe5-daylncubation,
constant
identif
iedanoenumerateo
The AGP resultsindicatedthat in general,the greatestalgal grovvth
occurredin those test samples amendedwith both nltrogenand
less growth occurredin those samples
ohos0horus. Considerable
amendedwith onlyone of thesenutrients.A student'st-testindicatedthat
fromthe additionof nitrogenalone
the increasein algalgrowthresulting
significant.However,the doublingor tnplingof algal
was not statistically
additionmay
numberswhichoccurredat mostof the sitesafternrtrogen
trend.
important
a biologically
indicate
Algae identificationand enumerationindicatedthat water from the
morealgaespeciesthandid watertrom
Riverhadsubstantiatly
MGsissippi
butmixingof riverwaterand lakewater,at leastat the
LakePonichartrain
dilution ratios tested, would not significantlyaffect the total algal
populatlonsin the lake. Furtherstudywouldbe neededto determinethe
riverwaterintothe lakeon algal populatrons
potentialatfectof introducing
thanthosesampledin thisstudy'
underdifferentconditions
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ASSESSMENT OF WAIER QUALITY IMPACTS TO LAKE
8Y THE BONNET CARRE FRESHWATER
PONTCHARTRAIN
D I V E R S I OPNR O J E C T
New
0istrict.NewOrleans,
Drake,MarvinA., USArmYEngineer
O r l e a n sL.a .
embayment
mileshallowestuarine
of
is a 616-square
LakePontchartrarn
area. Thelake
the NewOrleansmetropolitan
the Gulfof Mexicobordering
supportsabundant
togetherwith adjacentwetlandsand waterbodies
populations
erosionand saltwater
of fish and shellfish. Subsidence,
processes
and/or channel and levee
intrusioncaused by natural
in the lossof wetlandsandthe loss
however,
haveresulted,
construction
and migrationof fisheriesand fishinggrounds, The BonnetCarre'
up to 30,000
to discharge
Projecthasbeendesigned
Diversion
Freshwater
the
Mississippi
from
River
per
into
Pontchartraln
Lake
second
cubicfeet
The resultingmoderatedsalinityregimewould greatly improveoyster
productionin neighboring
LakeBorgne,its adjacentmarshesand beyond
in
wouldbe enhanced
to Mississippi
Sound.Fishandwildlifeproductivity
the estuarinesystem,andthe ratesof wetlandslosswouldbe significantly
reduced.
regarding
Lake Pontchartrain's
has recentlyexpanded
Publicawareness
potential
and other
for
swimming
valueas a naturalresource,and of its
recreationalactivitiesif stormwaterpoilutioncontrol and treatment
This has ralsednew concernsabout
measuresbecomeimplemented.
whelherthe project'sadversewaterqualityimPactsand otherundesirable
aspects.As a
effectson the lakewouldoutweighits positiveenvironmental
Assessmentwas preparedby the U S Army
result,an Environmental
Corps of Engineersin 1993 to supPlementand update the 1984
restrictive
tmpactStatement.The effeclsof progressively
Environmental
Riverindustries
for lowerMississippi
pointdischargepermitrequirements
Basinpollutionreduction
projectedLakePontchartrain
and municipalilies,
since 1984 were
effortsand other importanttrendsand devetopments
preparedas an Appendixto
consideredby the WaterQualityAssessment,
Assessment. The 1979 BonnetCarre' Spillway
the Environmental
Riverfloodwatersinto Lake
cfs of Mississippi
diversionof up to 19O,OOO
Pontchartrainand its extensivewater quality database provideclan
estimatethe waterqualityeffects
to quantilatively
opportunity
unparalleled
of the freshwaterdiversionprojectuponthe lake. lt was concludedthat
aside from salinity and nutrients(particularlynitrogen)water quality
and that the net salinityand nutrient
impactswould not be significant
ettectswouldbe Positive.
FOUNDATION'S
PONTCHARTRAIN BASIN
LAKE
THE
P
U
B
T
IC
P
L
A
N
:
T
H
E
S V I S I O NF O R
ANAGEMENT
C O M P R E H E N S IM
VE
rHE BASIN.
BasinFoundation,
Oufrechou,
CarltonF.,LakePontchartrain
Metairie,
La.
process
for
initiated
the planning
BasinFoundation
TheLakePontchartrein
Plan ICMP) in
Management
Basin Comprehensive
the Pontchartrain
in the Foundation's
hasbeenessential
October,1991. Publicparticipation
planning
process.
of the CMP involvedpublicmeetingsduring
PhaseI in the development
on theconditions
theiropinions
andneedsof the
expressed
whichcitizen's
by the publicweregroupedintofive
Basin.lssuesidentified
Pontchartrain
majorcategories.
wereheldto address
workshops
Phasell beganin March,1992. Monthly
the public'sfive major issuecategories.Two groupsparticipatedin the
WorkingGroupmade up of delegatesfrom
workshops: an Interagency
agencieswith regulatoryauthorityand an AdvisoryGroup made up of
industrial,
delegatesfrom civic,business,farming,fishing,environmental,
from these groupsdeveloped
and other interestedgroups. Participants
duringPhasel.
to addressthe issuesidentified
alternatives
Phaselll of the planningprocessbeganin January1994 The thirdand
costs
for implementing
the CMP,determining
finalwill developstrategies
and benefits for alternatives, rank alternatives, identify lead
andpinpointsourcesof funding.
agencies/groups,
of the Pontchartrain
of the CMPandrestoration
implementetion
Successful
Basin requiresa pertnershipcomprisedof and supportedby Federal
privategroups,and
agencies,Stateagencies,localagencies,businesses,
public.
mostimportantly,
the
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STORtlttftTER CHeR.ecTEnIzAtIoN lllD DE8IGN CoNSIDSRATIoNS FOR
AN IRIIIICIIL
trESLAXDS IREATI{ENT SYSTE}T 8OR !'EI' ORLEA.IIS EAST
RUNOFT
l. J., Jr., Tulane Unj,velsity, Nel, Orleans,
England€,
a
n
d
O
p
p
l€Dan, c. E.r 8urts-Kleinpete!,
LA,
Ir:c., Ney
Orleans, IrA,
Stualy addresses nitigation
The East Ner{ Orleans lakefront
of
uetlands.
storn r,ater runoff by constructed
The sEudy,
funded by the N€rJ orleans levee 8oa!d and engineer€d by
I D c . , i 3 a l e sj , g n e d t o i E p r o v € t h e w a t e r
Eurk-xleinpeter,
quaLity of th€ Irke lor recle.tj,oDal
Pulpos€s, cr€ate n€t,
habitats
and aald to tlre natural
fish and rrildlife
resou.ces
in th€ proxiEity
ot th. project
area in Net'
of the sharalin€
tb. r.sults
Tb€ gaP€r pr.e€[ts
OrleaDs East.
ot the storD
phas€ of th€ study
designed to
uat€r charact€rization
pollutaat
loadiags aad €xp€cted concentrations
ostiDat€
of
pollutants
in discharges rasultiDg
froB the st. cha!les
rrFilgt f lusbr' chllacteristica
r:iaa.
Canrl iD tb€ ltroj.ct
paraD€ters guantified.
Enphasis
arg defined and significlnt
guality
of runof,f saters fron an
is given to th€ bacterial
8,92 0 aele arga .
1993, ald continu€al tbrough
co6Donced in lugu3t
Saupling
coDsist.d of int6n3ive
EaDPliDg
Srapling .v.ats
rarcb 1991.
aDd background o! baselinr
sanplingr
by grab rDd coEposite
valid
duriDqt dry Y.atb€! coDditions.
taks oftshore
t€9tinq
that erch be ltreceded by 72
watcr evsDtt requir.d
stor[
than or equal to a 0.1
hours of dry y€athar , trd ba graat.r
nere
€v€nts
rainfall
Thre€ intcnsive
irch rrinfall.
Intensive
sanPling events
sanplsdl dluriDg th€ stualy po!iod.
(1) S€pteeber 15,
are as follor.s:
and associated rainfalls
(
2
)
October 2l' 1993, 2.17 inch€s,' (3)
1993, 1.25 inchesi
sctn of eotrtaninants,
I full
llarch 9, 1994, l.,l{ inches.
indices and
priority
bact€rial
uota13,
inctuding
itollutants,
a9PloPriate.
par.n€tcrs
corduct.d
ar
gross
v.r€
Quality
iD
inplanented
coDtrol u.thodt rrrc
assullDco lDd quallty
Alalytical
by
ElvironD.ltal
ald
lrboratort
thc f,lold
(EAEI) P€rsoDD.l to .nsule the accuracy and
fDc.
SolutioDs,
Baclground sanpling
r.sult3.
vrlldlty
of th. rDrlytlcal.
fall
and
enrnts yara coDatuctall olca Pa! salgon, of su&rsr,
plrca on August 26, L99t, october 5, 1993 rDd
tahilg
nint.r,
tiebruary 20, 1994.
er€!e
coDcentlations
Results of gro3s ParaE€te! Pollutatrt
low€r tha! hrd basn €:ap€cted as coDpared to Pol'lutant
susp€Dded 3olid3
total
in otb€r utrbaD ar.rs.
discharges
(tss) conc6nt!.tioas
troi ?l to 212 Dgll for tbe
ruged
13 to al EglI for tha october
sept€nb€r 9!nP11Dg .vaDt, fro[
r!{l tron 23 to 375 D9/1 lor th. Uarch
.vcat
sanpling
d0
flu3b Ps.k occurr.d rft€r
.v.Dt.
Thc first
saniliDg
to
belor
tb€ S.PteDb€! laDPIiDg aDd r.turn€il
uinutes-f,or
th€
exhibiting
lavel. after
lQo Bioqtes,
baselina
r
i
october Tss
f
l
q
s
h
.
of a
text book'r f i'rst
chalact€listics
o
r jusi ov6r
l
a
o
n
i
n
u
t
e
s
a
(
t
€
!
values appear to hav€ Peaked
tso hour9.
The peak TSS values frorl the !{arch 3anpling
event occurred at ttne zero,
TSS values declined rapidly
i,n
the first
Einutes of saDpling f loro 375 to 55 ng/l
lifteen
and continu€d to taper off to values belotf 30 ng/1 in th€
third hour qf sanpling.
Th6 initial
high Tss valu€ nay be
attlibut€d
to suspended sedinetts
ard/or biol.ogical
grorrth
erithin the drainage clDa1 syste[ preceding the rainfall.
Tha afl day non-intensivt
nttu!.
o! the lainfall
event
r€sult€d
iB r.I.tiv€ly
1or pollutant
concentlations
Fhich
slor1y decr€as€d over tiac.
Hol'€v€r, th€ alata indicate
that
a first
flush did €xist as Bost graphs fo! the october
sanpling exhibit
a sligiht dornrard curv€ at the end of the
two hour sanpling,
Rather than the pronounced filst
flush
delronstlateal iD s€ptenber alata, OctobeE data appear to have
bad an extended first
flush.
lhe l,tarch data, ouch like the
Septenbe! alata, strongly
indicate
th€ f,i!Et flush occurring
ghe tirst
within
tno hours ot sanFling.
Total orgaDic carbon (loc) in th€ s€pteEber alata closely
ei[ick€d
tgs b.havior
for the sanc sanpling eveDt.
TOC
p€8kad at 40 oinutcs rnd r€turned belon bas€Iine
v!luca
levels after
100 Einut€s.
Toc values tor the october
saopling event p€aked et 100 ninutes and appealed to be on a
r€lativeIy
steady decline therartta!,
nher€as TOc valu€s in
Merch p€ak€d at 30 ainut€s and 3teadlly declined thereafte!.
Chenical oxyg€n d€oand (COD) valu€s tor the Septenber and
I'tarch sanpllng rvcnts bchavcd siuilarly.
Biochenical
oxygen
denand (BoD) valu.s rsDaiD€d relatlvely
cotrsl.stent betweeD
geptenber
and octobst
dlata aod sara not tocus€d on in the
l.larch sampLing evont.
(lrDS) values
lotal
dlssolv€d
solids
for rll
thrc€ saDpliDg .v.Dt!
di[inished
to l€vels beti€€!
tero anil 1500 ngll after
60 uinut€a,
indicating
the tiDe at
r,hich the canal yrs flushed vith fresh rain water,
Total
nitrogaD aDd otgtDic Dl,trog€n values vari€al greatly
betre€n
sanpli,ng aventr,
honaver, aE$onir hitrogen
levels rrere
relatively
constaDt anq rrnged frob 0.2 to 1.9 tBg/l.
Totat
phosphorus levg1s .xbibLt€d
filst
f1u3h cttrractoristics
fo!
all thre€ events - r.tuEning to nithin
0.2 !'g/I of the
basclins
1av€l rft.r
120 ninut.s.
pollutant3
}|o priollty
n€r€ idoDtilled
ln any o! the
sanpli.Dg! oxc.pt tor . ttraco anount of Alilrin
(0.05 Bg/1)
Cleteetad
tn oae lrnpl€
at tinc zero in Septenler.
Only
cogpar,
laad and !l,nc tJ€re nctals
exceait
to
found
tecoEnand.d
stridgf€Dt
clronic
u.arinc satels
standalids of
O.O01 aq/).. 0.0085 Dgrll end 0.005 ng,/l resp€ctively.
the
soluble
tlactioD
of thesa Eatals yrs d€ternined using
sanPles collected
in Uarch.
R€su1ts indlcate
that alEost
all of the copper .Dd leadl conccntrations
ir.!e associat€d
vith
th. soll.ds frrction,
and otrly ziDc r.Eainsd abovc th€
chaonic EatLna stlnd{rd.
Bactgrould late concentr!tionr
loa
thcsa aatals
*ara rlso fouDd to ba abova rccoonended chronic
&arirre eat€t 3landrrds.
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us€d by EPA and th€ stat€ of Louisiana to
Indicatols
contaBination of water$ays are fecal
estiEate bacterial
The log lltean of 5 or Erole
and enterococcus.
colifor$
samples taken over a 30-day period should not exceeal 200
No single
organis!0s p€! 100 El, and 35 CfU, lesP€ctj'vely.
sanple shoul,d €xce€d ro0/r00 nI for fecal colj'forB, ana
Ent€rococcus i,s the EPA|s
lo.t/1oo EI ror ent€rococcus.
Baseline testing
of clroice for uarine wat6!3.
indicator
undetectable
enterococcus l,€v€ls at o! near
indicated
Etrtelococcus levels
lsv€1s stitnin th€ lake as blckgrouad.
at tilres zero, 60 aud 120 uinutes during the sePteDber
sanpling s€r€ 39 cFU/100 BL., 2L cFU/100 nl and 7 cFU/100
The octobe! baEeline entelococcus valu6
ulr- respectively.
linj't o! 2 cFg/100 nl.
quantification
nas belo$ plactical
ent€rococcus
1€vels of I
initial
October sanp).ing,
During
a
i
n
c
rease to 900
e
x
P
€
r
i
e
n
c
e
d
s
h
a
r
p
cFu/1oo nl rt tin6 zGro,
to 500
r
a
p
i
d
d
€
c
l
i
n
€
I
t
h
6
n
C F U / 1 O O! 1 a t t i n € 5 0 , a n d
tb€
ti!€
Altltough
to
120
hou!
th.
n€xt
CFUT1OOal over
of
lingle
standard
th€
sanpl€
abov.
rcuained
l€veIs
bacicria
th€
data
d€DoDstrate
a
hours,
tro
aftlr
10{ CFU/1Oo [I
du€ to the natu!€
In addition,
€ftect.
remarkabl€ flusbing
thes€
discusscd
€aEli€r,
13
av€lt
rtinla1l
october
of Che
rrere
80
sanPling
lesults
ltalch
surprising.
rr€
not
results
CFU/IOO [1 at th. start of punping flith .n increase to 500
cFuiloo nl at 90 niDutss, .nat r decline to 250 clul100 nl at
strndard i3 10{ cFU/100
nhil€ the applicabls
four hours.
h.ve been captured by
rould
event
rainf,all
total
this
![l.,
sYsteD.
designed
the
iDdicator,
Eased oa the use of this D€r, bacte!ial
standard seetrs highly
achieveoent of the nes ent.rococcus
of ths itetlands
probable giv€u
ProP€r dosiqn .!d op€Rtion
i,r eatnent systen t- Plolong contret. tiue and effectively
in rcsponse to storn
nulbars
1ow6r aDd r€oova bactcrial
systeE hrs
o! thc n€tlaDds trertn€nt
thc d.tign
!Iughing.
95
occurring
.v.nts
ralnlall
to rcconnodatc
bccn itciernl!.al
l
o
9
t
o
3
2
.
A
(1...,
. 2,2 inch rainl
p.rc€nt o! tb. tlu.
3yst.n i3.€xP.ct€'il ttith a 2' to
by th. tr.rtnent
ieduction
in tho
cxperiences
tiE€, bas€d on sinllar
{8 hour !€tantio!
be
should
t't'rs
tr..tsd
con!.qu€ntly,
R.Eion.
uid-etlantic
quality
!€quirod'
th. brct.riologtcal
wctl sitbia
I
: HE
EE
S T U A R I NM
E A N A G E M E NFTR A M E W O R KT
COMPREHENSIV
ESTUARY
CASEHISTORY
BARATARIA-TERREBONNE
of NewOrleans
Flint,R. Warren,EnviroPlanning
problems
in dealingwiththeenvironment
is thedegree
Oneof thetoughest
wholein whicha changeto
system- a delicate
to whichit is an integrated
one pari affectsall others. This makesit difficultto set prioritlesfor
of decisionfoundations
strengthening
action. Therefore,
environmental
priority.
protection
shouldbe a
makingfor environmental
processshould employ a
Any estuarinemanagementdecision-making
ecosvstemapproach. The ecosystemapproachtakes
comprehensive
amongwater.land,air,and llvingorganisms,
accountof interrelationships
and considersan integrativeaccountof interactiveand emergenteffects
growthof population
and technologyEstuarine
from excessrve
resulting
shouldalso encourageuse of sustainable
planningand management
partof decision'making.
Sustainable
principles
as an integral
develoomenl
productive
that
quest
ecosystem
for a hea{thfut,
represents
a
development
of essentialecological
and maintenance
utilization
values sustainable
of our humansocial,political,and
resources.lt involvesthe relationship
economicsystemsto the practicalresourcebase that supportsus and
measuresthe impact of the social and economic present on the
environmentalfuture to indicatewhen collectivehuman actions are
thisrelationship.
endangering
of
management
designedto assistwith comprehensive
Any mechanism
estuarineecosystemsshouldseek to achievehigh standardsof water
of fish' shellfish'
community
quality,maintainan appropriate
indigenous
activities,protectbeneficialuses of the
and wildlife,supportrecreational
estuary, and balance economic needs with resource protection.
must also be built upon a foundationthat
management
Comprehensive
thata
recognizing
promotessustainable
of naturalresources,
development
and a strongeconomyare mutuallydependent How
healthyenvironment
for guidance
in thesetlmes
suchan instrument
doesonego aboutbuilding
of fiscal insecurityand traditionalgovernmentalbureaucracy? An
National
examinationof the Case Historyfor the Baratarra-Terrebonne
EstuaryProgrammightprovideinsight.
In an effort to achieve integratedresource managementthat is
estuarine
and all-inclusivefor the Barataria-Terrebonne
comprehensive
ecosystemalongthe Gulf coastof southernLouisiana,the Management
Conferenceappointedby the Stateof Louisianato overseethis program
and guideda planning
a conceptual
thatorganized
developed
framework
andresearch
policyformulatron
process
for estuarine
anddecision-making
21
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The evolutionand makeupof the resultantconceptual
modelwill be
andits utilitywill be demonstrated
described
in detailby thlspresentation
pressing
problem-solving
contemporary
withthe use of several
scenarios
presently
thatthisestuarine
ecosystem
faces
Theconceptual
modeioffersa holisticviewof the estuarine
ecosystem
by
treatingthe followingmajorcomponents
withintts framework natural
resourcecharacteristics,
human impact problems,rnanagement
and
regulatoryconcerns,and over-arching
issuesthat tend to link all the
sustainable
components
together
towardachieving
naturalresourcesThe
framework
description
of this conceptual
will demonstrate
how the various
related
of the integrated
estuarine
systemare
components
to oneanother,
and how consideration
of theseinterrelationships
can assistthe estuarine
processwithrespectto decision-making,
policyformulation,
management
planning.
andresearch
scenariosdescribedin the presentation
will
Complexproblem-solving
illustratethe complicated
natureof any resourceproblemthat mightface
the Barataria-Terrebonne
system,as well as the kindsof questionsthat
haveto be askedin orderto developplansto solvetheseproblems.The
presentation
of this case historywill also suggestmeansby whichone
that
approachto decision-making
alternatrves
mighttake an ecosystemic
presentsa moreholistic,and at lhe sametimeclearerpictureof all the
possibleoutcomes,as well as the multitudeof parameters
that must be
to achieve
sustainability.
in attempting
considered
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OFLAKEPONTCHARTRAIN
RECENTTRENDSINWATERCLARITY
of Biological
M. A.,Department
Frqncis,
J. C.,andPoirrier,
New
LA
of NewOrleans, Orleans,
University
Sciences,
I
I
has beenan
An apparentdecreaseIn waterclarityof LakePontchartrain
concernfor severalyears. Regressionanalysisof the
environmentai
from
in Lake Pontchartrain
availabledata on Secchidisk transparency
tn
stgnificant
decrease
1953 through 1993 indicatesa statistically
withtime.
transparency
I
by bothsalinityandwindspeed A
is influenced
Secchidisktransparency
existsbetweenSecchidisk transparency
significantpositiverelationship
existsbetweentransparency
relationship
negative
andsalinity;a significant
annual
realizepronounced
and wind speed. In addition,bothvariables
and its lowest
seasonality.Salinityrealizesits highestvaluesin November
values
realizes
its
highest
valuesin May. Windspeed,on theotherhand,
in Februaryand its lowestvaluesin August. Theseseasonaleffectsare
in the availabledata set on Secchi disk
not equally represented
Whenthe seasonalbias ls removed
in LakePontchartrain.
transparency
from the data set, it no longersuPportsthe conclusionof a statistically
from1953to 1993.
changein Secchidisktransparency
significant
t
as
in LakePontchartrain
An unbiaseddeta set of secchidisktransparency
availablefor the recent period 1987 through 1993. The data are
transparencyvaluesfrom severalsiationsalong the Causewaybridge
taken at regularmonthlyintervals. The seasonaleffectsof salinityancl
that
Thesedata.suggest
represented.
wind speedare thus adequately
may exjstat djfferentsites
in transparency
differences
althoughsignificant
timesof the year,therehasnot beena statistlcally
in the lakeat different
perrodfrom 1987
over the seven-year
significantchangein transparency
to 1993.
!9
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ASSESSMENTOF METALS AND ORGANICSIN WATER AND
A L O N GB A Y O U
TREPAGNIER
S E D I M E N TAST S E L E C T ESDI T E S
P
r
e
s
l
a
n
,
A
n
d
e
r
s
o
M
n
,
.
8
.
,
J
a
n
dA d a m sS, T u l a n e
W
.
J
.
,
,
Georoe,
Departments
of Pharmacology
and
Schoolof lVledicine,
University
LA.,
NewOrleans,
Anatomy,
a tributaryof BayouLa Branche,drainsinto Lake
BayouTrepagnier,
pollutants
of this Bayouwith industrial
has
Pontchartrain.
Contamination
waterway.
resultedin its designationby the EPA as a contaminated
reevaluated
this
Bayou
respect
to
metals
have
with
and
Recently,we
at a numberof locationsalongthe lengthof the Bayou
organicpotlutants
Sites above and below suspectedinflow locationswere assessedfor
presence
lead,chromium,
manganese,
zinc,vanadium,
of iron,aluminum,
arsentc,
cadmium,
and beryllium.
cobalt, nickel, copper, selentum,
3050andwereanalyzed
werepreparedby EPAmethocl
Sediment-digests
(lCP). Sediments
coupledplasmaemissionspectroscopy
by inductively
aluminum,and
concentrations
of
iron,
significant
were found to contain
lead. ln water specimenstakenfrom the same samplingsites and
screenedby ICP for the abovemetals,only iron and manganesewere
range.Maximumobserved
foundto be highenoughto be withindetectable
for iron and manganesewere 2110 ppb and 622 ppb
concentrations
respectively.
chlorideeltractsof the soilsfrom the samplingsites were
Methylene
speclroscopy.The compounds
analyzedby gas chromatographyimass
detected consistedof a broad range of satura'tedand unsaturated
hydrocarbonsand a significantquantityof elementalsulfur. Sueh
of petroleumcontamination.Absentwere
are characteristic
constituents
of gasoline Oil, grease
light-weight
substitutedbenzenescharacteristic
petroleumconstituents
also were presentin the soils in
and non-volatile
largequantities.
werefoundto containhydrocarbon
Killifishcollectedin BayouTrepagnier
hexene,undecene,
cycloundecane,
compounds(octane,hexadecane,
pentatriacontane).
and
heptadecane,
hexacosane,
CURRENT
S T A T U SO F T H E S T O R MW A T E RT R E A T M E NPTR O J E C T
BOATLAUNCH
ATTHE BONNABEL
BasinFoundation,
Gorin,Steve,LakePontchartrain
Metairie,
La.
Stormwaterrunoff pumpedinto Lake Pontchartrain
from a networkof
drainagecanalsis the majorsourceof pollutants
alongthe Orieansand
Parishshorelines.Constructed
Jefferson
wetiands,
locatedon rslandsin
the Lakehavebeenproposed
as a possible
systemfor treating
thisrunoif
intothe lake. Although
beforeit is discharged
constructed
wetlandshave
oftenbeenusedfortreating
wastewater,
theirusein anyareals dependent
factors.
specific
Before
on site
buildingan expensiveislandin the laketo
test the efficiacyof the use of aquaticvegetation
on a large scalein our
area,a pilotprojecton landhasbeendesigned
to providesomebasicdata
The objectivesof this pilotprojectare: 1) to determineif and underwhat
will successfully
conditionsaquaticvegetation
removetargetedpollutants,
2) to determinethe operatingand maintenance
requirements
andthe cost
effectiveness
of the system,and 3) the characterize
the outputfrom the
pumped
into
drainage
canalsthatis
thelakeon a dailybasis
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T H E I M P A C T O F I N S E C TH E R B I V O R Y
O N B A L D C Y P R E SISN
F O R E S T EW
D ETLANDS
G. J.,Department
Goyer,R, A. andLenhard,
of Entomotogy,
Louisiana
StateUniversily,
Baton,Rouge,LA 70803,
a dominant
Baldcypress,
component
of forested
weilands,
continues
to be
damagedby an outbreakof an insectherbivore,
the fruittreeteafroller
(Archipsargyrospila).
Thefocusof the popu,alion
explosion
of thjstortrrcrd
portionsof the Pontchartraln
encompasses
caterpillar
Basin. Extensive
defoliation
spring-time
in seasonally
and permanen|y
floodedareashas
grovvth
resultedin dramatlcreductionin radial
and has causedcrown
and tree mortality.The interaction
deterioration
of insectherbivory
with
and man-induced
tree stressesfrom environmental
causes will be
in thisposterpresentation.
highlighted
AND AUTOGENIC
GF F E C T SO F A L L O G E N I C
T H E I N T E R A C T I NE
I N) T H E L A K E
MI S T I C H U M
A G E N T SO N E A L D C Y P R E S( TSA X O D I UD
L O U I S I A NU
AS
, A
, ANCHAC
P O N T C H A R T R ABIANS I NM
Randall
and
Shaffer,
GaryP .
Myers,
S
C.,
Greene,Michael
La.70402,USA.
University,
Hammond,
Loutsiana
Southeastern
of baldcypress/tupelogum
the lack of regeneration
In coastalLouisiana,
factors
as land subsidence,
generally
been
to
such
attributed
swamphas
canalization
sea levelrise,sedimentdeficitsdue to leveeconstruction,
and stormsand hurricanes Factortal
waterlogging,
salinities,
increased
of thislack
cause(s)
to isolatethe particular
wereundertaken
experiments
Among the variabiesconsideredwere herbivoryby nutria (Mvocastor
(from entanglingvegetation),
covpus),nutrientlimitation,competition
substratetype, and relativeelevation.lt was foundthat successwas
unprotected
trees
fromnutrtaherbivory;
uponprotection
entirelydependent
thatnutrientaugmentatlon
sutfered100%mortality.lt was alsodetermined
greatlyenhanced
the trees'growthrates. ln
and releasefromcompetition
thatrelieffromfloodstressplayedan
studies,it wasconfirmed
subsequent
as did a topsoll
importantrole in allowingtreesto becomeestablished,
substrateas opposedto one of sand. This studyindicatesthat biological
of
thenaturalregeneration
in restricting
factorswereof primaryimportance
played
role
a moderating
factors
whilephysical
seedlings
baldcypress
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THE COASTAL WETLANDS PLANNING, PROTECTIONANO
, R E S E NATN DF U T U R E .
RESTORATIO
AN
C T : P A S TP
Hawes,Suzanne,
U.S.Corpsof Engineers,
NewOrleans
Oistrict,
andKemp,G. Paul,Coalition
to Restore
Coastal
Louisiana,
Baton
Rouge,La
The CoastalWetlandsPlanning,
Protection
and Restoratjon
Act of 1990
Act, is the officiaimeansthroughwhrch
also calledthe Beaux-Johnston
damagedoneto Louisiana's
environmenlal
coastalwetlands
overthe past
centuryis to be corrected. lt was initiatedby grass-rootsactivismall
acrosssouthLouisiana,
andis nowa process
runby government
agencles
and fundedby taxpayers.lt is slowlyand painfullyevolvinginto a more
inclusiveand democraticenterprisethat is revolutionizing
the way
planning
and
management
occurs.
environmental
fhe Pontchartratn
Basin
providesoneof the beststagesuponwhichthisdramais beingplayedout.
Plans for restoringthe basin are reviewedand the evolutionof this
approechis discussed. This process,for all its currentflaws, is being
viewed by many as a modelfor the Nationif opportunities
for public
involvement
can be increased.
Patterns
in Northern
Distribution
Gulf
Effectsof StormEventson Sediment
of MexicoEstuaries
C.,Department
of Geology-Geography,
University
lsphordinq.Wavne
Flowers,
Mobile,
AL
and
36688,
C
Alabama,
George
of South
TulaneUniversity,
of EarthSciences,
LA
Department
NewOrleans,
are presentalongthe northern
borderof the Gulfof
Ten majorestuaries
in
to
Apalachicola
from
Bay
Louisiana
Bay in Florida.
Mexico
Barataria
Sedimentstudiesthat have beencarrtedout on thesebays duringthrs
centuryindicatethat rnost have been characterized
by either relatively
patterns
patterns
or
that haveshowna gradual
consistentseclimentation
changeover the yearsin responseto the activitiesof man. Baysfalling
Mississippi
into this categoryincludeBarataria
Bay,LakePontchartrain,
Bay,St.AndrewBay,andSt JosephBay.
Sound,PerdidoBay,Pensacola
Pontchartrain,
andPerdidoBayhavebeenthe subject
BaralariaBay,Lake
the consistency
that
of particularly
detailedstudiesand well illustrate
characterizes
the sedimenttertural patternsof some estuariesin the
Bay,in contrast,
havebeen
nonhernGulf.MobileBay and Apalachicola
these
is
marked
by
changes
studiedin similardetailbuteachof
signrficant
in sedimenttenure whichhavetakenplacejust in the last two decades.
8ay haveresultedfrom the
Part of the changesobservedin Apalachicola
of numerous
along
construction
damsby theU.S.ArmyCorpsof Engtneers
the ApelachicolaRiver and its tributaries. These dams markedly
had been
attenuatedquantitiesof silt-sizesedimentthat, historically,
depositedin the bay. Morerecentchangesin the bay'ssedimentdistrlbutionpattern,however,can be directlytracedto extensivescouringthat
occurredduringpassageof HurricaneElena,in 1985. This stormwas
fromthe
responsible
for the removalof nearly90 milliontonsof sediment
present
duringthe
bay and returnedthe bay'sdepthsto levelsthat were
more
part
were
even
Mobile
Bay
early
of this century. Stormeffeclson
Frederick,
in 1979,removeda quantity
striking.The passageof Hurricene
of sedimentfrom the bay calculated
at 287 milliontons (theequivalentof
the depositionloadof the Mississippi
Rivereachyearat its mouthl). The
entirebaywas deepenedby an averageof 1.5 feet, producingaverage
depthsthatwerelastnotedin thebayin themiddle1800's.
in the northernGulf of
While hurricanes
are a commonphenomenon
mustact for themto significantly
Mexico,a specialset of circumstances
alter botlomsedimenttexturepatlerns. Of particularimportanceare the
storm'strack,its forwardmovementvelocity,and the bay'smorPhology.
Lake Pontchartrain,and the several other northern Gulf esluaries
mentionedpreviously,have been sparedthese sPecialconditionsand
relatively
have,thus,remained
unchanged
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GT H EL A K EP O N T C H A R T R A
C I T I Z E N 'M
SO N I T O R I NI N
BIANS I N
M.,
Lake
Pontchartrain
Kenwood.
Clrfford
BasinFoundation,
Metairie,
Louisiana
Accordingto the LouisianaWater QualitylnventoryReport(305 (b))
nonpointsourcesare significant
contributors
to Loursiana,s
wateroualitv
problems.Not surprisingly,
pollution
nonpoint
Source
has beenrdentified
as one of the majorsourcesof pollution
in the LakePontchartrain
Basin
cleanup
effortswillbethecontrolof nonpoint
Oneof the keysto basin-wide
sources
of pollution
Dueto the uniquenatureof nonpoint
sourcepollutants,
it is necessary
to
largeanddiverseareas.Louisiana,
compiledatafromgeographically
like
percentage
most states,is able to monitoronly a small
of the state's
waterbodies.lf the campaign
to reducethe impactsof nonpointpoilutlonis
to succeed,regulatoryagencieswill needadditionalhelp to monitorthe
state's surface waters through citizens'monitoringprograms.These
programscanprovide:publiceducation
on streamwaterqualrty,
hands-on
activitiesfor schoolchildrenand adultsto learnaboutcleanwater,and
useJulinformationto local oovernmentabout the conditionof their
waterbodies.
BasinFoundation
is currentlyinvolvedin citizens'
The Lake Pontchartrain
monitoringprogramson fournorthshoreriversand the southshorecanal
system. On the Bogue Falaya River, volunteersuse a biological
surveys)developedby the lzaak
monitoringmethod(macroinvertebrate
Walton League of America'sSave Our Streamsprogram. On the
Tickfaw,and NatalbanyRivers,volunteersmeasurenutrient
Tangipahoa,
levels and gather water quality samplesfor laboratoryfecal coliform
involvedin
arecurrently
analysis.Onthe southshore,highschoolstudents
a canal monitoringprogrammeesuringnutrientsand bacteria. Each
approachhas its promisesand pitfalls. An analysisof each program's
will be provided.
benefitsand'Vorkability"
36
Outof BayouTrepagnier
of HeavyMetalContamination
Movement
K o o l i t zL.v n nV o a e lB. uC o n t r e r aRs .' ,G r e e n , JH, 'o p k i n sE,' ;
f - a n r e r r;cS m i t h . JM i c h a ealn dG r o s sR e m i n g t olnl l,. D e p a r t m e n t
LA 70'118
NewOrieans,
LoyolaUniversity,
of Chemistry,
Canal.justeastof
fromEngineer's
sampleshavebeencollected
Sedjment
from early 1992
the LowerGuideLeveeof the BonnetCarre'Floodway,
until recently. They show high levelsof Pb and Zn contaminatton
originatingfrorn a small strearnwhich connectsthe canal to Bayou
Thisbayouhasbeennotedby theLDEQto be a contamrnated
Trepagnier.
to, or exit
sotlareaand has signspostedto thateffectat everyentrance
In the canalappea(lo De
from,the waterway.The metaiconcentrations
increasingwith time and moving downstream(north) toward Lake
of currentPb andZn levelsin the bayouwlth
A comparrson
Pontchartratn.
preferentjally
by a
thosein the canalindicatesthatzn is beingtransported
of physical,chemical,and biologicalmeans Zinc has
combination
apparentlyrnovedfaster and furtheralong the canal. Analyseswere
(XRFIof the driedsedimentsat Tulane's
performedby x-rayfluorescence
Facility
Instrumentation
Coordinated
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Transporl
of HeavylrletalsintoLakepontchartrain
viaOutfall
Canals
r oD
e e p a r t m eonftG e o l o q v
L i u ,S c h u a nagn dF i o w e r s . G e oC
T u l a n eU n i v e r s i tNy e
, wO r t e a n sL ,A 7 0 11 8 ,a n dl s p h o r d r n g i W r y n "
C Department
of Geology
& Geography,
University
of South
A l a b a m aM o b r l eA,L 3 6 6 8 8
Bottomsedimentsamplescollectedfrom Lake pontchartrain
near the
DuncanCanalwereanalyzedfor totalrecoverable
meta!usinglCpES. Cr,
Zn, Ni,andCo levelsaresignificanily
abovetheaverage
totalmetalvalues
for LakePontchartrain,
which,in general,
fall belowtotalmetalvaluesfor
the averageshale. Metalconcentrations
normalized
to the aluminum
and
ironcontentsof sediments
indicatesignificant
anthropogenrc
inputof Cd,
Cr, Pb, Ni, and Zn near outfallcanalsalongthe southshoreof Lake
Pontchartrain.
Thetotalmetalconcentration
of sediments
is controlled
by
sedimenttexture;strongpositivecorrelations
are observedbetweenmetal
contentand clay/organics
contentof the sediment. Becauseclay is
generallywinnowedout of sedimentsat the mouthof the canal, metal
content increaseswith distancefrom the mouth of the outfall canal.
Notableexceptionsare sandysedimentsin the mouthof the canal that
containanomalously
highCr andNi contents.Analyses
of samplestaken
fromvariousdepthsin coresindicatethatmetalinputintothe lakefromthe
canalis relatrvely
constant.
lon sitepartitioning
analyses
of sediment
samples
takenfromthe 17thSt
general,
partitioned
Canalindicatethat, in
metalsare
into stablesites
underthe physicochemical
conditions
thatexistin theoutfallcanalsandthe
lake. However,reducingconditions
causedby salinitystratification
in the
lake may increasethe potentialfor metal release and subsequent
absorption
by the biota.
S N D G E O M O R P H IC H A N G E SI N T H E
G E O L O G I CP R O C E S S E A
P O N T C H A R T R ABIANS I N1:9 8 4 -919 4
, . S ,G e o l o g i cS
P e n l a n dS,h e a, L S U ;a n dW i l l i a m sJ ,e f f U
a lu r v e y
ThePontchartrain
Basinis majorGulfof Mexicoestuarine
baslncontaining
richcoastalwetlandsandsubmerged
aquatichabitats.The Pontchartrain
is
of
significant
environmental,
Basin
social.andeconomic
imponance
to
in particular
to the city of New Orleans Publrc
southeastLouisiana,
supported
Information
consensus
by scientific
suggestthatthLsbasrnhas
significant
and widespread
degradation
overthe pastcentury
undergone
surveysconducted
in 1984and 1994,a decadeof
Usingaerialvideotape
documented.
changes
are
shoreline
ThePontchartrain
Basinis locatedin southeast
Louisiana
wedgedbetween
the Mississippi
Riverdeltaplainto the southandthe Pleistocene
terraces
Parishes
to
the
north.
the
Pontchartrain
of the Florida
The axisof
Basin
trends northwest-southeast
and encompasses
Lake Maurepas,Lake
Pontchartrain,
LakeBorgne,the St, Bernardmarshes,
Sound,
Chandeleur
andthe Chandeteur
lslands.Thehabitatsrangefromtreshwater
swamps
and marshesin the westernbasinto saltwatermarshesand barrrerisiands
in the easternbasin.
Subsidenceis an importantgeologicprocessimpactingthe Pontchartrain
halfof
occursalongthe southern
Basin. The highestratesof subsidence
the basinwhereratesaverage0.5-0.7cm/yr. In the northernhalf of the
decrease
basin,the ratesof subsidence
to 0.2-0.3cm/yr. The ratesof
subsidencevary as a functionof Holocenethickness,organiccontent,
faultingpatterns,
soiltype,andvarioushumanactivitaes.
problemfound in the
Coastalland loss is a seriousenvironmental
erosionis consuming
the marginsof the
Pontcharlrain
Basin. Shoreline
the interiorswampsand
lakesin the basinwhilewetlandlossis consuming
erosionrangebetween0.4 and .7.metersper
marshes.Ratesof shoreline
year alongthe shorelineof LakeMaurepasand LakePontchartrain.The
lslands
highestratesof shoreline
erosionare foundalongthe Chandeleur
rate of erostonof these
in the eastemside of the basin. The short-term
-12.2
islandsis measured
m peryear.
al
Wetland loss occurs throughoutthe PontchartrainBasin from Lake
that cover
lslands.Usingthe '15quadrangles
Maurepasto the Chandeleur
the basin,the averagerate of wettandlogs can be measuredat 0.12
squaremilesperyear. Theprocesses
drivingwetlandlossin this basinare
storms,human
variedand complex. Subsidence,
salt water intrusion,
activities.
andoollution
allcontribute
to wetlandloss.
i9
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fhe majorchangesdocumented
for the decadeof 1984and 1994inctude
shorelineerosion,lossof vegetated
wetlands,determination
of a varietyof
coastaistructures,loss of seagrassbeds, and a generaldeclinern the
environment.
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{0
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E F F E C T SO F U R B A NR U N O F FO N B E N T H I CI N V E R T E B R A T EAS .
F O RC A U S A F
SEARCH
LACTORS
. a s e yJ . ,D e p a r t m eonftB i o l o g i c a l
P o i r r i eMr i c h a eAl . a n dR o w eC
of NewOrleans,
Lakefront,
NewOrleans,
University
LA
Scrences,
70148
NewOrleansareais pumpedlnto
Stormwaterrunofffromthe metropolitan
througha systemof outfallcanals. Althoughurban
Lake Pontchartrain
in
as the primarysourceof environmental
contaminants
runoffis regarded
littleis knownaboutthefateandeffectsof thesecontaminants.
theestuary,
populations
neartheDuncanCanalrn
invertebrate
Paststudiesof infaunal
identified
threeintergrading
faunalzonesalong
Parish,Louisiana
Jefferson
with distancefrom the mouthof the
a slressgradientwhlchdecreased
canal. Zone 1, whicheKendedout to 150m, lacKedmollusksand had
and oligochaetesZone2, which
morenematodes,
capitellidpolychaetes
extendedout from 150 m to 400 m had higherdensitiesof the some
polychaetes,
of the mollusks,
Zone3, was a variable
and lowerdensities
recoveryzone in which molluscandensitiesincreasedto levels similar
those found in offshorereferencesites. This study demonstratedan
adverse effect on the benthic invertebralepopulationsin Lake
Pontchartrain
and supportsthe need for managementof urban runoff
of
enteringestuaries.Resultscouldbe usedto monitorthe effectiveness
programs.
runoffmanagement
factors
Thefocusof ongoingstudiesis on the relatlveroleof environmental
associatedwith runoff in producingthe adverseeffect on inverlebrate
populations.Reducedsalinity,low dissolvedoxygen,hlghcurrentveloclty,
in the water and sedimentmay all contributeto the
and contaminants
to separatetoxicityfrom contaminants
observedresponse.lt is important
in urbanrunofffrom otherfactorssuchas salinity,dissolvedoxygenand
currentswhichmay be easierto manageand don'thave long-term
environmental
and healtheffects. Acute sedimenttoxicitytests were
performedon sedimentsamplestaken100m,300m,800 m and 4.8km
a small
(referencesite) trom the canalmouth.Lexadinasphinctostoma,
and the amphipod
benthic snail which occurs in Lake Pontchartrain,
Hvauelaazleca were used as test organisms. No acute toxlcitywas
detectedin anysedimentsampleswitheithertestorganism.Acutetoxicity
testswere runto determine
the effectsof dissolvedoxygenconcentrations
on survivalof Texadina.Low
below0.5 ppm and low salinityconditions
dissolvedoxygenand distilledwater causedsignificanttoxicityto the
oxygenand abrupt
snails. Preliminary
data indicatethat low dissolved
play
producing
adverseeffectson
freshwater
discharges important
rolesin
thebiota.
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4 stations
1) 100m from mouthof canal
2) 300m from mouthof canal
3) 800m from mouthof canal
4) 4.8 km from mouthof canal (reference
site)
' no significant
toxicitybetweenany stations nearthe canalor between
stationsnearthe canalandthereference
sitefor eithertestorganismused
difference
in survivalbetweensalinitiesrangingfro m 0 5 " no significant
ppt.
howeversignificant
betweenfreshwater
2.0
difference
conditions
and
lowsalinity
conditions
hypoxiahasa significant
effectuponsurvivalof the snarls
0 . 1 5 - 0 . 5p p m
Hypoxiax low salinitysynergismexperimentdetermined that
of T. sphinctostoma
under
hypoxia has an effectuponosmoregulation
conditions
freshwater
testused
analysrs
of variance
wasthestatistical
Kruskal-Wallis
one-way
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TRENOANALYSIS
AMITERIVERWATERQUALITY
of
L.,
formerly
withtheLouisiana
Deparlment
Smith,Stephanie
Officeof WaterResources,
BatonRouge,
Quality,
Environmental
1a..70884.
primarily
by sandand
Waterqualityin theAmiteRiverhasbeeninfluenced
gravel mrnrng.nonpointsource pollution,urban runoff and sewage
water
over the past decade Twenty-etght
treatmentplantdischarges
qualityparameters
to determine
theexisting
of the
wereanalyzed
condition
past
years
quality
trend
of
the
five
from
0n
and the
1986-1991 the
water
to specifythe
variationit was necessary
AmiteRiver. To delineparameter
factor
envrronmental
ertremeupperand lowerlimitsof the mostintluential
(flow) affectingthe surfacewater constituents
analyzed. Groupingthe
quality
variablesby flow conditionsservedto adjustfor seasonal
water
effectsin the data;this improvedaccuracyin the analysisby reducing
concentrationvariabiiity associatedwith stochasticflow conditions
generatedby climaticchanges. The parametersshowinga significant
werearsenic,lead,and total dissolved
increasein instreamconcentration
were plottedby stationlocationto illustrate
solids. Selectedparameters
to ruralandurbanareas.
differences
basedon proximity
concentration
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WATER CONTROL PERFORMANCEOF THE CAERNARVON
PROJECT
FRESHWATER
DIVERSION
USArmyCorpsof Engineers,
NewOrleans
Burnell,
Thibodeaux,
Loulsiana.
NewOrleans,
Oistrict.
diversionhas becomethe solutionto a host of problems
Freshwater
plaguingLouisrana's
coastalzone - channelazation,
leveeconstruction,
mineralexpioitation,
andsealevelriseto namea few. These
subsidence,
throughout
problemshavecauseda chainreaction
the estuaries
thereby
problems
related
intruslon
and
in the
loss,
saltwater
causingwetland
Diversion
Freshwater
coastalecologyand hydrology.The Caernarvon
projectwas conceivedto alleviatethe deleteriouseffectsof the above
and wildlifehabitatand
problemsby enhancingmarsh productivity
productivity
introduction
the
controlled
of fresh
through
oyster
increasing
regime.
salinity
theestuarine
waterto manage
evaluate
Thispaperwill expiorethe Corp'srolein thiscostsharedproject.
performance
in ::'91, and
stnceit becameoperational
the structure's
programsimplemented
beforeand
providean overviewof the monitoring
paper
will detailthe development
of the
afterconstruction.ln additionthe
modelforthisuniqueandtimelyenvironmental
operational
Project.
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+.1
YT U D Y
S C H O O LW
S A T E RQ U A L I T S
M
a
V
a
a
r
d eOn..F; a n dS c o t tR
, . ,S o c i e tfyo r
R
.
A
.
;
Thomas,
n ,e wO r l e a n sJ, E F F E R S OPNS HH I G H
E n v i r o n m e nEt adlu c a t i oN
sourcepollution,
entering
via
LakePontchartrain
Urbanrunotf,or nonpoint
the drainagecanalsfrom the streets,parkinglots and yards Jefferson
pollution
Parishis knownto bethesinglemostserrous
sourcefor the south
shore. Thisproject,fundedby a grantfromthe SierraCluband sponsored
Education,
set out to educateJefferson
by the Societyfor Environmental
about
the
drainagesystern and the
Parish High School students
usedto assessthe quality
thatdrainintoit andthetechniques
substances
of thewaterandthe healthof theecosystem.
Three high schoolswere involved:East JeffersonHigh sampledat the
mouthof the Suburban
Canal;GraceKingHighsampledat the mouthof
the BonnabelCanal;and RiverdaleHigh sampledat the rnouthof the
weretakenfromthecanalsideand
ElmwoodCanal.At eachsite,samples
pump
the resultscomparedto observe
of
station
and
the lake side the
effectsof urbanrunoffon the lakewater. The studentsconductedall the
of theirteachersand stafffrom the Societyfor
testsunderthe supervision
Environmental
Education.
Sept.17,
Weeklysamplesweretakenovera fourweekperiodbeginning
The following
1993. All samplingtook place in the late afternoon.
parameters
were measuredusingwaterqualitytestingkits from LaMotte
pH, salinity,dissolved
oxygen,turbidity,nitrate,
and HACHcompanies:
phosphateand water temperature.ln addition,biochemical
axygen
the latterat the Elmwoodsite
demandandtotalcoliformweremeasured,
only.
Duringthe monthof September1993,the New Orleansarea experienced
whichaffectedthe resultsof the projectbecauselittleor
droughtconditions,
no waterdrainedfromthe streetsof JeffersonParishintothe canaisand
the canalwaterswere not enteringthe lake. However,the studentswere
able to collectvaluablebaselinedata and are currenllyrepeatingthe
procedureto investigate
in differentweather
the valuesof the parameters
conditions.
thatthewaterqualityat themouth
Thefindingsof thisinitialstudyindicate
of the drainagecanalsin JeffersonParishis relativelygood. The levelsof
dissolvedoxygenwere well abovethe minirnumstandardat all times.
However,the levelsof total coliformat the mouthof the ElmwoodCanal
was abovethe maximumstandardand this may be usedas an indicalor
levels.
thatbacteria
levelscouldbe aboveaccegtable
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S E D I M E N T A T I OONN L O W E R B I G C R E E K I N E A S T C E N T R A T
T A N G I P A H OPAA R I S H :L A N DU S EC H A N G EA S A C O N T R I B U T I N G
CAUSE AND PERCEPTIONS
ON THE PARTOF CJTIZENS
AND ThE
ELECTED
PARISH
C O U N C I L M EAN
B O U TS E D I M E N T A T IIONNP A R I S H
SIREAMS
t
AndrewE., Citizens
Whitehurst,
fora CleanTangipahoa,
Baton
R o u g eL, a .
I
T
Parishhas exhibitedsignsof
LowerBig Creekin centralTangipahoa
increased
sedimentation
sinceapproximately
1958. Loss of persistent
poolsbelowtheformerRusselltown
bridgesite(1958-1978)
andabovethe
site(1978-'1992)
coupled
wrtha generalized
widening,
lossof canopy,
and
lossof depthare mostlikelydueto sedimentation
fromchanginglanduse
patternsin the Big Creekdrainagebasin. The changesalonglowerBig
in fishhebitatanda neartotaltossof
Creekhaveresultedin a deterioration
recreational
swimmingholesfor people.
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femporary (timberharvest)and permanent(pasturecreation)land use
changeshave been drivenby marketforceson the dairy and timber
landusechangein thearea
industries
sincetheprimary
to varyingdegrees
- theremovalof thelongleaf
pinewhichendedaround1918.
An informalpassivesurveyof one usergroupwas deployedin sporting
goods stores in Amite and Hammondto exploreperceptionsof the
problemparishwide.
in
Thereis evidence
thatparticipation
sedimentation
of citizensto recordresponses
on
the surveywas limiteddueto reluctance
issue.
a localanddelicate
parishcouncilhasbeenunableto fuliyenforceits
TheelectedTangipahoa
presentloggingordinance
wouidnot supportadditional
and apparently
(BestManagement
Practices)
whichmayhelpeasethe
loggingregulations
sedimentation
oroblemsin ParishStreams,
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.16
Basjn. A
of the LakePontchartrain
and Processes
GeologicFramework
Premier
ButTroubled
UrbanEstuary
Studyot Louisiana's
Multi-disciplinary
U
S
u
r
v
e
y
9
1
4
N
a t i o n aCl e n t e f
S
G
e
o
l
o
g
i
c
a
l
W i l l i a m sS, J e f f r e s s ,
Reston,VA 22092
8asin, locatedon the easternside of the
The Lake Pontchartrain
Riverfloodplain,is a ma1orGulf of Mexicoestuary/wetland
Mississippi
to the
and economicimportance
environmental
complexol considerable
NewOrleans,Publlcconsensus
region,especially
Louisiana
south-central
suggeststhat the basrn,
supportedby limited scientificinformation
significant
and widespread
has undergone
especially
LakePontchartrain,
overthe pasthalfcentury.
degradation
of thecritical
an evaluation
Survey(USGS)undenook
The U.S.Geological
plan
of study,
problemsaffectingthe basinand developeda multl-year
recommended
issues
environmental
and
which identifiedseveral key
of the
scientific
understanding
to
improve
necessary
strategicactions
processes.
andrelevantestuarine
basin'sgeologiccharacter
in thestudyplanare:
issuesidentified
Majorenvironmental
sources,
fromurbanandagricultural
andwaterpollution
o Sediment
andgrassbeds,
erosionendlossof wetlands
o Lakeshore
waterways,
tromcanalsandnavigation
o Saltwaterintrusion
shelidredging'
commercial
o Effectsof pastlong-term
diversion.
o Potentialeffectsof BonnetCarre'water
studyof the Pontchaftrain
of the plan,a multi-disciplinary
Afteracceptance
Basinwas initiatedby the USGSin October1993. Fundingfor the first
level of effort to assess exlstlng
year permitsonly a reconnaissance
and to start addressingthe followingfive
geologicdata and information
tasksdetailedin theplan:
shallowgeologiccharacterof the
o GeologlcFramework: Oelineate
measurements,
for faulting,subsidence
the potential
basin,including
activities.
of shelldredging
assessments
anddetailed
remolesensing
o ShoretineMapping: Use very high-resolution
to produce
as well as hlstoricmapsand photography
instruments
changes'
of geomorphic
databases
mapsandcomputer
large-scale
r't
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o ContaminatedSediments: Conductgeochemical
analyseson
to quantifycontaminated
suitesof lakebedsediments
sediments.
and determine
map theiraerialdistribution,
the sources,transport
pathways,and depositional
sinksfor fine-grained
sedimentsand
pollutants.
o ComputerCirculationModeling: Use 3d modelsto srrnulate
patterns
circulation
andsediment
fluxwithinthebasin.
o Information
Transfer/Education
Outreach:Provideinterimresults
public
planners
invoived
to the
and
in effortsto restoreand protect
theLakePontchartrain
Basin.
Thisstudyis an impo(antextension
of recentUSGSfieldstudiesof barrier
processes
in the Mjssissippi
islanderosionandwetlandloss
Riverdeltarc
plain, Notonlywill it address
specific
issues,butitsresultscombined
with
studieswillprovidea morecomprehensive
resultsfromprevious
scientific
of processesaffectingthe entireMississippiRiver deltaic
understanding
D l at n .
t
P R O J E C TASD D R E S S I N G
DR P L A N N E D
I N V E N T O ROYF P R O P O S EO
WETLAND LOSS OR SALTWATER INTRUSION IN THE
BASIN.
PONTCHARTRAIN
, , a n dL o p e zJ,
Y o s t eL, i a ;B r i t s c hD, . ;H a w e sS, ; B e r r y B
forthe Lake
Intrusion
WetlandLossCommittee
Saltwater
Foundation
Basin
Pontchartrain
PIanI.'r
theComprehenstre
\lanasemenr
of developrng
As partof thefinalphase
wetlandloss
the salrwaterinmrsioru
Foundation,
the Lake PontchartrainBasin
wetlandlossor saltrrater
theknotn projectsaddressing
hasCompiled
commiftee
basinis splitinto threesub-basins
inrnrsionwithinthebasin. The Pontcharuain
basinto the land bndgeberween
The upperand middlebasinis the Maurepas
LakesBorgneandPontchamain.The Lowerbasinis from this land bndgeto .1ust
westof the MRGO. The BretonBasinis from the MRGO to the l"lississippi
as the
inventoryof plojecttypesis disnrbuted
River. The cunentapproximate
following.
REEFS
ARTIFICIAL
UPPER&MiO
LOWER
BRETCN
1
0
0
I
1
FRESHWATER
OIVERSION
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MOOJFICATION
IiYDROLOGIC
RESTOFATJON
HYDROLOGIC
12
MARSHCREAT]ON
6
1C
I
0
1
I
MARSHANANAGEMENT
OUTFALLMANAGEM€NT
0
SEOIM€NTOIVERSION
pROIECIION
SHoRELTNE
t,
tu
1
SEDTMENTTRAPPTNG
3
c
o
VEGETATIVEPLANNINC
2
O
O
BARRIERISTANORESfORAIION
1
10
]
BARRIER
MAJORHYOROLOGIC
1
1
O
in the CWPPRAplanning'
reflectlargelythoseinventoried
Theseprojects
program.we will
of thatplanning
outside
thosesuggested
butalsoinclude
continueto inventoryprojectsas we are ewareof them. The saltwater
will attemptto developa long{erm
loss committee
intrusion/wetland
to theseprojects,
strategy
fortheLPBFin regards
.t9
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USINGSEISN4IC
FAULTDETECTION
SUBSURFACE
DATA FOR
LL
H A Z A R D O U S . W A S T E . i N J E CWTEI O
NP E R M I T T I N G
AN EXAMPLE
P
A
R
I
S
H
,
LOUISIANA
F R O MS T J O H NT H EB A P T I S T
N
e
w
V
.
,
C
N
G
O
r
l
e
a
n
Lsa .
Z i n n iE
, dward
aquiferis utilizedas a majorsourceof drinkingwaterfor
The Covington
A recentsubsurface
geologic
eastSt. Johnthe BaptistParish,Louisiana.
('1991)
Hanson
suggested
thatthe Covington
studyby Herbertand
aquifer
hydrologically
with
two
hazardous-waste-injection
communicate
might
Covingtonaquiferin dangerof
reservoirsthus puttingthe freshwater
the use of integratjng
sejsmiccontamination.This paperdescribes
possrbility
data
to
determine
the
of
reflectionand electricwell-iog
betweenthe Covingtonaquifer and the
hydrologiccommunication
reservolrs.
hazardous-waste-inlection
for
net-sandisopachsand structuremapsare constructed
Cross-sections,
reservoirs
andthe Covington
aquifer.Four
threehazardous-waste-injection
reservoirs
previously
normalfaultsbisectthe threein1ection
undetected
presence
of thesefaultssignificantly
aquifer. The
and the Covington
possibility
by actingas conduitsand
of
communtcation
the
increases
allowingverticalmigrationof fluidsalonglhe fault planesor causing
jurtaposition
of sandagainstsandand allowingleakageto occuracross
is partof a fluvial
reservoir
planes.
theupperinjection
In addition,
thefault
system that occasionallyscours down into the Covingtonaquifer,
depositingsand from the injectionreseryoirintervaldirectly on the
reservoiris in stratigrephic
the injection
Covingionaquifersand.Therefore,
aquifer.
withtheCovington
hydrologic
communication
contactandpossibly
into these reservoirscould
fhe injection of liquid-hazardous-waste
quality
aqqiferbut possibly
jeopardizenot onlythe water
of the Covington
occuralongthe
shouldverticalmigration
aquifers
othershallowfreshwater
fault pianes. Withoutthe use of seismicdatathe risk of contaminating
undergroundsourcesof drinkingwaler would not have been properly
assessed.
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CONFERENCEROSTER
L7523 Basrcs oF Tt{E BASTN / 9 4
VIay 26-27,
1994
lm . S?EVE ADAttts
MEDICA! RTSEARCHTECH TI
TULANE UNIVERSITY I.IEDICAL SCHOOL
4500 5. MrRO ST.
NEW ORLEANSIA 70125
I.!R. ROBERT L. ANCELET
I.A DEPT OF WILDLIFE & FISHERIES
4OO ROYAL ST
NEW OR!'AXS LA 7 0]3 0
DR. MARY B. ANDERSON
ASSOCIATEPROFESSOR
TTIIANE UNIVERSITY MEDICAL SCHOOL
I43O TUIANE AVE.
ANATOMYDEPT.
NEI{ ORLEANS LA ? 0112
}IS. DENISE AICE!,IENT
I,ABORATORYI{ANAGER
PI.AQUEI.IINES
PARISH GOV.'T
138 EDNA IAFRANCE ROAD
BR,AITIIWAITE LA 7 OO4O
I.IR. NEIL ARMINGEON
EWTRON}IEN?AL DTRECTOR
IAKE PONTCHA.RTRATN
BASIN FNDN
3900 l{. CAUSEWAY
BLVD. STE.821
!.IETAIRIE IA 7 OOO2
!(R. BRUCE H. BAIRD
BIOIOGTST
U. S . ARIitY CORPS OF ENGINEERS
P . O . B O X 5 0 26 7
NEW ORTEANSIA 7 o 15 o-02 67
r.{S. DEBORAH BARBE
NUNEZ CO!{MUNITY COLLEGE
3 7 00 IaFoN?Ar[E
CHAI.,I{ETTEI,A 70043
D O N A L DE . B A R B E , P h . D . , P . E
ASSISTANT PROFESSOR
I'NTVERSTTY OF NEW ORLEANS
DEPT. CIVIL & ENV. EIGINEERING
NEW ORLEANSLA 70148
I,(R. DAVID F. BEA,TTY
GEOIPCIST
LDEQ IIAZARDOUS WAS?E
P.O. 80x 82178
EATONROUGEI,A 70884-2178
TERRI BEWIG
PROGR,AI{SDIRECTOR
COALTTTON TO RESTORE COASTAL
8841 HIGHIAND ROAD SUITE C
BATON ROUGEI.A 70808
It[R. DOUGI,AS E. BRADFORD
GEOI.OGIST
DEPT. OF EN TRONI{ETTAI, QUALTTY
P.O. BOX 276
covING?ON lA 70434
B. BRANCH
MR. CHRISTOPHER G. BRNELEY
WILDLIFE BIOI'GISI
U.S. ARMY CORPS OF ENGTNEER,S
PIANNING DIVISION PO BOX 60267
NEW ORLEAITSr.A 70160-026?
UR. DEL BRITSCH
I'{R. JOHN F. BURDON
BTOI.OG
IST
I,A DEPT OF WTLDLTFE & FISHERTES
52282 u|f:I 90
SLIDELL I.A 70451
UR. JOHN BIJRNS
l
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L7523 BASICS OF THE BASIN '94
PAGE 2
I(R. RON CHEEK
INSTRUCTOR
UNIVERSITY OF NEW ORLEANS
DEPT. OF MANAGEMENT,
U. N. O.
NEW ORLEANS LA 70].48
R. BU CONTRERAS
P. CORIEL
EMELISE CORMIER
OEPT OF EWIRONMENTAL QUALIT'(
P. O. BOX 82215
B A T O N R O U G ET " A ? 0 8 8 4 - 2 2 1 5
!.1S. CROSCINA O. CROCKETT
ASST.DIR.- EWIRON. PROGRAUS
XAVIER U}ITVERSITY
7325 PALITIETTO
ST,
NEW ORLEANS TA 7 OL25
MR. II'ARK DAVIS
I.[R. CTIARLIE DEMAS
u. s. GEoLoGTcALsuRvEY,suITE 120
3535 S. SHERI{OODFOREST AI,VD
BATON ROUGE IN 7 0816
UR. RICIIARD DEI,IAY
SCIENTIFIC TECHNICALCOORD.
BARATASTA.TERREBONENAT. ESTUA.RY
P,O. BOX 2663
THIBODAUX I.A ? 0310
MR. DENNTS DEI,ICHECK
u.s. GEoISGICAL SURVEY,SUITE 120
3535 S. SHERWOOD
FORSST BLVD
BATON ROUGEI.A 70816
J . DILION
I,m,. UARVIN A. DRAKE
UR. KENNETHC. n t t F F v
STUDENT, I,SU
4747 FI.OYNELLU K l . V E
BATON ROUGE IA ? 0 9 o 9
I(R. CARLTON DUFRECSOU
EXECUTTVE DIRE TOR
IAI(E PONTCHARTR,A
T N BASTN FNDI{
3900 N. CAUSEWAIBLVD. StE.821
METAIRIE IA 7OOO2
T,IS. STEPIIANIE EASLEY
It{G!,t?. SPECIALIST
NAT. R.ESOURCE
JEAN INFITTE NHP&P
355 CANAL ST. SUITE 3O8O
NEW ORLEANS IA ?0130
A. J,
SIIARON FLANAGAN
5046 B VERIIILLION BLVD
NEW ORLEN.IS IA 79L22
l
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E}IGIANDE, JR.
DR. WARRENFLII{T
EWIRON. PLANNING OF NEW ORLEANS
3530 CARONDELETSTR,EET
NEW ORLEAI.IS I.A 7 0115
}(R. GEORGEC. FI'WERS
TUIANE I'NIVERSITY
GEOI'GY DEPARTIIENT
NEW ORLEANSLA 70118
I
I
'94
L7523 BASICS OF THE BASIN
PAGE 3
t
I
!{R. DOUG FORDER
GRADUATESTUDENT
SOUTHERNLOUISIANA UNIVERSITY
P.O. BOX 814-sLU
I"A 70402-081'4
HAMMOND
I{R . TYRONE PORE}.T,AN
SIERRA CLUB
7607 HA!.{PSONST
NEW ORLEANS IA 7 0118
DR. JOHN C. FRANCIS
PROFESSOR
UNIVERSITY OF NEW ORLEANS
UNO-DEPI. OF BIO. SCIENCES
NEW ORLEANS I.A 70148
I(R. WILLIAM J. FURI-ONG
AVE.
102 6 N. CARROLLTON
7OII9
T,A
NEW ORLEANS
MR. CHARLES R. GARRISON
WILLIN'I J. GEORGE,Ph. O.
- DIR. OF TOXICOI,OGY
PROFESSOR
SCHOOLOF MEDICINE
UNIV.
TUIANE
1d30 TgrSNE AVE. ROOU {72{
NEW ORLEANS 1'A 7 OI1.2
PRISCILIA GHERSANICII
247 }TARIT,ANDIE INT 12
RIVER RIDGE IA 7 O!23
!IR. JOSH GILBERT
u. s. GEOITGTCALSURVEY,SUTTE120
FORESTBLVD
3535 S. SHERWOOD
70815
BATON ROUGELA
US. KATE GILITORE
SANITARIAN
OFFICE OF PUBLIC HEALTH
5 6 7 0 0 H U D S O NR D .
SLIDELL LA 70458
I,(R. STEVE GORIN
PROGR.AUDIRECTOR
IAKE POX?CSTRTRATNBASIN FNDN
YL V D . S T E . 8 2 1
3 9 O O N . C A U S E W AB
7OOO2
IA
METAIRIE
DR. RTCH}.RDA. COYER
PROFESSOR
STATE UNIVERSITY
I'UISIANA
LL STATE UN
DEPT OF ENTOI|TOISGY,
70803
I,A
ROUGE
BATON
J.
r.[R. T.{ICEAEL C. GREENE
DEBORAI{ GRIIi{l'!,
!'IANAGEB
DEPARTUENT
TUIANE I'NIVERSITY-CIF
504 LINDY BOGGSBUILDING
NEW ORLEANS 1A 7 0118
R.
GROSS
}TR. ROBERT W. HASTINGS
DIRICTOR
TURTLE COVE EN\IIRONI'TENTAL RES
BOX 585, SOUTHEASTERNLA UNIV.
I,A 70402
HAMI.TOND
GRSEN
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MS, AII.{EE GUGLIELMO
STUDENT
UNIVERSTTY OF UT}UT
3116 N. IABARRE RD
IIETAIRIE IA 7 OOO2
UR. ROBERT ITASTINGS
SHELL OIL COMPANY
P.O. BOX lO ROOI{ CAB280
NORCOIA ?0079
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L7523 BASICS OF THE BASIN '94
PAGE 4
I.1S. SUZANNE HAWES
PROJECT }TANAGSR
CORPS OF ENGI}IEERS
P . O . B O X 6 0 25 7
NEW ORLEANS L{ 70]-60
ALBERT HINDRICHS
DEPT OF ENVIRONMENTALQUALITY
P. O. BOX82215
BATONROUGEt^ 7 088422).5
MS. BARBARAC. HODGE
SECRETAT,YNEW ORLEANSGROUP
SIERRA CLUB
E13 O I(AREN ST .
!,IETAIRIE I.A 7OOO3
DR. CRAIG HOOD
I.OYOLAUNIVERSITY
DEPASTUENTOF BIOLOGY
6363 ST. CHA"RLESAVENUE
NEW ORLEANSIA 7OI18
E. HOPKINS
DR. WAYNEISPHORDING
PROFESSOROF GEOISGY
UNIVERSITY OF SOUTH AIABAI.iIA
5506 RTCEMONDROAD
MOBILE AL 35608
I{R. ROB L, JACOBY
SHELL OIL COI,IPAI{Y
P.O. BOX 10
NORCOI.A 70079
I.TR. KURT JOHNSON
HYDROIOGIST
U.S. GEOIIGICAL SURVEY,SUITE120
FOREST BLVD
3535 S. SHERWOOD
BATON ROUGEIA 7 0815
ItR. LrrYD s. JoLrBoIs, JR.
MR. I.ARRY JONES
PI,AQUEI,IINES PARISH GOVT'
138 EDNA LAFRANCEROAD
BR,AITI$'AITE I,A OO4 O
GRADUATE STUDENT
TUIANE IN.TIV. SCHOOLOF HEDICINE
1430 TU]NNE AVE.
ANATOMYDEPT.
NEW ORLEANS I.A 7 0112
I,tR. PAUL KEi(P, PH.D.
SCIENCE I TECHNOIPGY DIRTCTOR
COALITION TO RESTORE COASTAL I.A
8841 HIGHIAND ROAD SUITE C
BATON ROUGEIA 70808
MR. CLIFFORD KENI{OOD
PROJECT COORDINATOR
IAKE PONTCHARTRAINBASIN FNDN
39OO N. CAUSEI{AYBLVD. STE.821
IIETAIRIE LA 7OOO2
MS. I.AUR,T XINC
GRADUATE STUDENT
TUI"ANE - DIVISIOil OF TOXICOIPGY
1.430 TULAIIE AVE. Rll.{713
NEW ORLEANS I,A 70112
IR,ACY KLING
ASST. SCIENTIFIC/TECH COORD.
BAR'ilT}RIA-TERREBONNE NAT . ES1UARY
P.O. BOX 2663
fHIBODAUX IA 70310
DR. A! KNICHT
UNIVERSITY OF NEW ORLEANS
HS. LYNN V. KOPLITZ
ASSOCIATE PROFESSOROF CHEIITSTRY
6353 ST. CHARLESAVE.
NEt{ ORLAANSIA 70118-6195
L7523
PAGE
C.
BASICS OF THE BASIN
'94
5
IANIER
I'IR. GERALD J. LENHARD
RESEARCHASSOCTATE
LOUIS]ANA STATE UNTVERSITY
DEPARTT.IENT
OF ENTO!,TOLOGY
BATONROUGEI,A 70803
I
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!{R. JEFFREY H. LIST
OCEANOGRAPHER
U.S. GEOI6GTCA], SURVEY
384 WOODSHOLE RD'QUISSETT CAH
wooDs HOLE MA 02543
SCEUANG LIU
TUIANE UNIVERSITY
DEPARTIIENT OF GEOI.OGY
NEW ORLEANS IA 7 0118
}R. JOHN IOPEZ
PONTCHARTRAINRESEARCH COUMITEE
387 CARR DR.
SLIDELL I,A 70450
I.[R. ED I,I,ARTIN
,I
U.S. GEOIPGICAL SURVEY,SUITE }20 I
.
3 5 3 5 S . S H E R W O O DF O R E S T B L V D
BATON ROUGE LA 7 0815
I{R. STEVE MATHIES
PROGRM DIRECTOR
BARATARIA.TERREBONNE NAT. ESTUARY
P.O. BOX 2663
THIBODAUX [A 70310
US. DINAH MAYGARDEN
EDSCATION GRANTS COORDINATOR
ENVIRONMENTALEDUCATION
3517 CAHPHASTREET
NEW ORLEANS IA 70118
I.TR. BEN IITCGEE
U.S. GEOrcGICAL SURVEY,SUT?E120
FOREST BLVD
3535 S. SHERWOOD
BATON ROUGE IA ? 0816
MR. PATRTCK r. MCTOPY
I
CHTEF ADHTNISTRATIVE ASSTSTA.I'IT I
ST . JOTIN PARISH
1801 WEST AIRLINE HIGHWAY
I
IAPT.ACE ]l 70068
I
I{R. DAVID L. IIILLER
ENGTNEER
E X X O NC O . , U S A
P,O. BOX 51707
NEI{ OntEAl{S LA 70151
I'[R. owEN P. !,tILLs
MAUREENUT'LINO, Ph.D.
STEIULE & ASSOCTATES, INC.
P.O. BOX 865
UETAIRIE IA 70004-0865
DR. TERESA UCTIGUE
NAT'L ITIARINEFISAERIES SERVICE
u s l . 'P
, .o. Box 42451
IAFAYETTEIA 70504
I,{R. KENNSrH E. OwEr
ISUISIAIIIA COLLESIION LIBR,ARIAN
,
T'NIVERSITY OF NEWORLEN.IS
3128 ANNUNCTA?IOII
NEW ORLEANS I.A 7 O115
AssrsTAuT DTRECToR
I
I
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I
TUI.ANE UNIVERSITY-CIF DEPARTI,IENT'
604 TINDY BOGGSBUILDING
HJil:I;::
II(R. WILLIAIT T. O'IJARY
cEoI,oGIST
EXXON CO!{PANY USA
P.o. Box 61707
NswonLEArsLA 70161
SHEA PEI{IAND
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L7523
BASICS O F T H E B A S I N
'94
M S . R E B E C C AW . PIERCE
EQS (DEQ)
P. O. BOX 82178
BATON ROUGE L.A 7 0 8 8 4 - 2 L 1 4
MS. TONJA L. PLUNKETT
GRADUATESTSDENT, TUIANE UNIV.
DEF{T,/CIVIL & ENVIR. ENGINEERING
NEW ORLEANS I,A 7OIT8
DR. UTCHAELPOIRRIER
UNO - BIOI.OGY DEPARTMENT
JANET E. PRESIAN,M.S.
I,ABORATORYSUPERVISOR
TUIANE UNIV. SCHOOLOF MEDICINE
1430 TLIIANE AVE. ROOM47].3
NEW ORLEA$S I.A 7O1I2
KRIS
UR. I.iIKE RAYLE
STEII.ILE E ASSOCIATES, INC.
P.O. BOX865
METAIRIE I.A 7OOO4-0865
PRESTON
ITS. ANN RHEN{S
EDUCATION COORDINATOR
IAKE PNTCHARTRAIN BASTIT FN TN.
P . O . B O X 6 9 65
-59 6 5
ITETAIRIE LA 7 OOO9
CASEY ROWE
UNIVERSITY OF NEW ORLEA}TS
4751 PERELLT DRTVE
NEW ORLEANS IA 7 OL27
I.[R. PIERRE SARGENT
u. s. GEoLoGTCALSURVEY,SUrTE 120
FOREST BLVD
3535 S. SHERWOOD
BATON ROUGE LA 7 0815
R. SCOTT
S. D. 5EENAPPA
![R. GARY SHAFFER
JOHN SHEEHAN
DEPT OF EWIRONHENTAL QUALITY
P. O. BOX 82215
BATON ROUGEIA 7 08 84-2 215
US. STEPHANIE L. S}'IITH
US. DIN{A STELLER
DEPT OF NATUR,LL RESOI,'RCES
P,O. BOX 94396
BATOI{ ROUGEr.A 70804-9396
ITR. GREG STEYER
IITR. BI'RNELL TIiIBODE:AUX
R. A. THOI,IAS
MR. JOHN I'HL
ZONE ADUINISTRATOR
JEFFERSON PARTSH COASTII.
1445 !{CARTHIIR AVENUE
HARVEY IA 70058
UR. JOSEPH I. VINCENT
SIERR,A CLUB
509 THIRD AVE
I{A"RVEYIA 70058
ilR. A}IDREW E. WHITEHI,JRST
VOLUNTEER
CITTZENS FOR A CI,EAN TANGIPAIIOA
].7 08 CIPVERDALE AVENUE
BATON ROUGE I.A 70808
S. JEFF WILLIN{S
RESE.ARCHGEOISGIST
U. S. GEOIPGICAL SURVEY
914 NATIONAL CENTER
RESTONVA 22092
3t]
'94
T7523
BASICS OF THE BASIN
PAGE 7
MARNI E WINTER
M5, KATHLEEN WI LTEN},IUTH, JR.
ST U D E N T
n f p Fnfap
J E F F E R S O N P A R I S H ENv & DEVEI,OP.
1 2 2 1 E L M W O O DP A R K E , ! V U , J I L / U J
HARAHI,N I.A 7 O12 3
494 W. BLUE JAY CT.
SLIDELL Ii{ 70451
I'{R, EDWARD ZINNI
TOTAL NAMES LISTED=
111
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