Annapolis Held Office
Region III
Environmental Protection
Monitoring of the Upper Chesapeake Bay
for the
Syrnetrical Trazine Herbicides
Atrazine and Simazine
J. J. Austin., Jr.
R. C. Bubeck
T. 0. Munson
Presented at the
12th Middle Atlantic Meeting
American Chemical Society
Hunt Valley, Maryland, April 5-7, 197S
-------
Annapolis Field Office
Region III
Environmental Protection Aycncv
Monitoring of the Upper Chesapeake Bay
for the
Symetrical Trazine Herbicides
Atrazine and Sinazine
J. J. Austin, Jr.
R. C. Bubeck
T. 0. Manson
Presented at the
12th Middle Atlantic Meeting
American Chemical Society
Hunt Valley, Maryland, April 5-7, 1978
-------
Annapolis Field Office
Region III
Environmental Protection Agency
Monitoring of the Upper Chesapeake Bay
for the
Symetrical Trazine Herbicides
Atrazine and Simazine
J. J. Austin, Jr.
R. C. Bubeck
T. 0. Munson
Presented at the
12th Middle Atlantic Meeting
American Chemical Society
Hunt Valley, Maryland, April 5-7, 197S
-------
Introduction
The reported decline and disappearance of rooted aquatic plants
fl 2")
in the Chesapeake Bay1 ' . has raised concern over the possbile role
fr
of herbicides in surface runoff. To monitor the ambient level of
the most widely used*- ' and potentially more persistent^ ' symmetrical
trazine herbicide Atrazine (Aatrex) 2-chloro-4-ethylaminq-6-isopropylamino-
s-trazine and the similar herbicide Simazine (Princep) 2-chloro-4,
6-bis(ethylamino)-s-trazine in the waters of the upper Chesapeake Bay,
the Environmental Protection Agency's, Region III, Annapolis Field Office,
during the 1977 summer season collected surface water samples from
the upper bay and the Potomac River estuary. Samples to measure
t
seasonal variations of the Susquehanna River were obtained from the
U.S. Geological Survey, Water Resource Division, Harrisburg, Pennsylvania.
Water and sediment samples were taken at the USGS Harrisburg station
together with discharge measurements. Water samples were returned
to the EPA, Annapolis Field Office for analysis.
-------
Method
Samples were analyzed in accordance with the Method for Trazine
Pesticides in Industrial Effluents; Federal Register 38, No. 75,
Pt. II.
With this method one liter samples were extracted with three
60 milliliter portions of methylene chloride. Subsequently the
solvent is changed to hexane utilizing a Kerderna-Danish assembly
and the extract evaporated to one milliliter. Qualitative and
quantitative analyses were then performed utilizing gas chromatography.
A maximum of fifty microliters was injected onto a one percent
Carbowax 20M column maintained at 160°C with a 60 ml/min helium flow.
A Hall Detector operated in the nitrogen specific mode at an attenuation
of 1x10 was employed for maximum selectivity and sensitivity.
Under these conditions a 10 percent of full scale response was
obtained with 50 microliters of sample containing either .03 ppb
Atrazine or .04 ppb Simazine.
Recovery of spiked blanks averaged greater than 97% for both
herbicides. Single operator precision was better than +_ .02 ppb.
-------
Discussion
«,
As the major source of fresh water to the upper Chesapeake Bay, the
Susquehanna River drains much of northeastern and central Pennsylvania
and parts of south central New York. ° Because of its shallow
depth and great width, lateral mixing at Karrisburg, Pa. is poor.
*
The west bank at mile 69, Harrisburg, closely resembles the Juniata
River and Conodoquient Creek, which drain limestone terrains to the
west. The center generally resembles the West Branch Susquehanna
River, while water samples near the east bank show the influence of
mine drainage from the river's eastern tributaries. To measure
seasonal variations of herbicide concentrations in the surface run-
off, ^ •* depth intergrated samples were taken from three stations
on both the east and west channels and composited for each channel.
Highest Atrazine concentrations were found in the west channel, which
drains the more agricultural region. A peak concentration^ 1^ ' of
1.21 ppb Atrazine was observed with the first runoff after application.
Subsequent rainfalls removed less as field and crop cover increased.
However, with harvest and the death of other cover, concentrations were
observed to again increase with increased flow. Concentration of Atrazine
in the east channel^ "^ •* were generally half those of the west channel
and were observed to follow the same trends.
fFie 51
The presence of Simazine in the west channelv 6 closely
followed that of Atrazine. However, concentrations were usually less
than a quarter of those of Atrazine. A peak Simazine concentration
of 0.31 ppb was observed. Concentrations of Simazine in the east
-------
/channel^ 1^ ' were again but half those observed for the west channel,
with almost all late season samples being below our detection limit
of .04 ppb Simazine.
(Fig 7) During the summer of 1977 drought conditions existed
with corresponding low flows. When significant rainfall occurs close
to time of application, greater losses have been shown in field tests
conducted with these compounds. ' '
Extrapolating between analysis dates and using the mean daily
flows, daily loadings were computed. Transport of both Atrazine and
Simazine^ •*-<* °>J) were observed to decrease rapidly after applications,
but greater field losses occurred after crops were harvested and fields
bared. The total load calculated over the study period from June 8
until December 23, 1977, was about 2.7 metric ton of Atrazine and
about 0.54 metric ton of Simazine.*- ^ •* Field test plot studies
have shown that from 1-2% of the active herbicide is lost in surface
f(•> 7~\
runoff and erosion; ' as much as 15% of the application has been
reported lost as degradation products and active herbicide.
Application of these herbicides at the recommended rate of 2-4
pounds per acre results in an initial surface soil concentration of 22 to
44 ppm. 1° •* When concentrations in the water column are computed
v
on the assumption that all herbicide once originated on the sediments
being transported, both Atrazine and Simazine are seen to peak after
applications in or near this range. The rapid decline is attributed to
chemical $ microbiological degradations and dilution of the surface
application in the soil column. ' Once in the aquatic environment,
Jiowever, the more alkaline conditions have been shown to greatly retard
any degradation.' '
-------
Selected Bay and Potomac Estuary samples were filtered through .45
Micron Glass Fiber Filters before analysis. From 80% to +100% of the
herbicides were found in the dissolved fraction. For the sediment
load observed in the Susquehanna River, a partition of 20% of the
herbicide concentration on to the sediments would indicate a concentration
*
factor over the water column of 1000-6000. Such concentrations could
result in increase local levels to rooted plants which act as natural
sediment traps.
The dispersion of herbicides entering the upper Chesapeake Bay
from the Susquehanna River was monitored on a monthly basis from June
through August. Surface water samples were collected along a longi-
tudinal axis at selected stations of the water quality monitoring
network of the EPA AFO for the upper Chesapeake Bay.^ lg The July
sampling was conducted by the Chesapeake Bay Institute, Baltimore,
Maryland, and returned to the AFO for analysis. Peak concentrations
of Atrazine range from 0.54 ppb to 0.78 ppb.^Flg ^ Generally
concentrations were observed to decrease with distance from ±he start
of the estuary. Concentrations of Simazine in the Chesapeake
Bay, like the Harrisburg, Pa. station, were generally less than
a quarter of those observed from Atrazine and showed the same trends of
dissipation with distance. Peak concentrations range from 0.11 to
0.22 ppb.
In July and August the presence of these herbicides was also
monitored in the Potomac River estuary. lg Surface water samples
were collected at slack tide from selected stations over the seventy
river miles between Chain Bridge and the Rt. 301 Nice Bridge.. The
-------
'August sampling1 lg during a drought period of steady flow shows
the same trend of decreasing concentration from the start of the estuary.
Using salinity measurements the dilution due to tidal mixing was computed
for the upper Bay and Potoamc River samples. In general the excellent
predictions obtained were within the uncertainty of the analytical
ft
measurement, indicating tidal'mixing as the major1force dissipating
concentrations of herbicide entering the estuary.
In an area uneffected by salinity incursion, the July 18, 1977
(Fig 16)
Potomac River samples show a distinctive peak in concentrations
with respect to river mile, which is only partically explainable by
the higher concentrations noted the week before as the remains of a
runoff event moving down river.
Relative to the upper Bay and Susquehanna River, the concentration
of Simazine in the Potomac is much higher compared to Atrazine. In
the upper Bay and Susquehanna River, concentrations of Simazine were
but a quarter of those observed for Atrazine.
Future work will continue the monitoring of the Susquehanna River
through the 1978 application season, and will concentrate on the
collection of large volumn samples for direct analysis of herbicides
in suspended sediments and algae. Analysis of bottom sediment and plants
will also be attempted.
-------
References
1. Elser, H.J., Observations on the Decline of Milfoil ami Other
Aquatic Plants in Maryland, 1962-1967, Annapolis, Mel., Department
of Natural Resources, Ref. 67-12-1, pp. 1-14.
2. Southwich, C.H. and Pine, F.W., Abundance of Submerged Vascular
Vegetation in the Rhode River From 1966 to 1973, Chesapeake
Science, Vol. 16, No. 1, June 1975, pp. 147-151.
3. U.S. Environmental Protection Agency: The Pollution Potential
in Pesticide Manufacturing, EPA #TS-00-72-04 (1972).
4. Goswami, K.P. and Green, R.E., Microbiological Degradation of the
Herbicide Atrazine and It's 2-Hydroxy Analog in Submerged Soils,
Environmental Science § Technology, Vol. 5, No. 5, May 1971,
pp. 426-429.
5. Ritter, W.F., Johnson, H.P., Lovely, W.G., and Molnau, M.,
Atrazine, Propachlor, and Diazinon Residue on Small Agricultural
Water Sheds Runoff Losses, Persistence and Movement, Environmental
Science £ Technology, Vol. 8, No. 1, Jan. 1974, pp. 38-42.
6. Correll, D.L., Pierce, J.W., and Wu,:T.L., Studies of the
Transport of Atrazine and Alachlor from Minimum Till Corn
Fields into Chesapeake Bay Tidal Waters, Proc. Northeastern Weed
Science Society, Vol. 32, Jan. 1978.
7. Hall, J.K., Pawlus, M., and Higgins, E.R., Losses of Atrazine in
Runoff Water and Soil Sed., J. Envir. Qual., Vol. 1, pp 172-6, 1972.
8. Herbicide Handbook of the Weed Science Society of America, Third
Edition 1974.
9. Nolfe, N.L., Zepp, R.G., Gordon, J.A., and Fricher, R.C., N.
Nitrosamine Formation from Atrazine, Bulletin of Environmental
Contamination § Toxicology, Vol. 15, No. 3, 1976, pp 342-347.
10. Junk, G.A., Richard, J.J., Suee, H.J., and Fritz, J.S., Journal
of American Water Works Association, 68 (4): 218-222 1976.
11. Anderson, P.W., Variations in the Chemical Character of the
Susquehanna River at Harrisburg, Pennsylvania, Geological
Survey Water-Supply Paper 1779-3, U.S. Government Patient
Office, Washington, D.C., 1963.
-------
12. Hall, J. X., end Hartv/ig, N. L., Atarsine Mobility in Tv;o Soils
Under Conventions! Tillage, Journal of Environmental Quality.
Vol. 'i, No. 1, 1975, pp. 63-67.
13. Triplett, G. B., Conner, B. J., and Edwards, W. M., Transport of
Atrasirie and Siinazine in Runoff from Conventional and No Till
Com. Journal of Environmental Quality. Vol. 7, No. 1, 1973,
PP. 77-34.
1/4. Kernney, P. C., Kgufiran, D. D., Herbicides Chemistry/'...Degradation
and Mode of Action. Second Edition, Vol. 1, }/arcel Dekker, Inc.,
New York, 1975, pp. 129-208.
15. Hollister, T. A., Walsh, G. E., Differential Responses of Marina
Phytoplanlrton to Herbicides; Oxygen Evaluation, Bulletin of
Environmental Contamination and Toxicology. Vol. 9, No. 5, 1973,
pp. 291-295. .
-------
Susquehanna - River Basin
-------
CHEMICAL CHARACTER OF SrSQt-EHAKXA B1VER
B3
EXPLANATION
1
Sampling Station
O 120
. Station Number
DU
600 0 600 1200 1800 2400 FEET
i.i i i i i
FIGURE 1.—Location ot cheinlcnl quality cross-section sampling stations. Susquelianna
Kivcr nt llarrlsburs. Pa.
!
i •
4
-------
-
£5
a
•H
.0
. C
w
.C
O
•P
w
5s
*^-^
0)
c
•H
ro
«rf
— i
_^
•O
UJ
1 »2?5 + 1
9
0
1»050 + I
* •'
« i
!
• » • i
tR750 + ;
,
I i
» /
t
» i
o700'0 + {
•J
0
" Susquehanna River at Harrisburg, Pa.
1977
. t '. -J
. ..*•'
• . *s
A • ^^jS"-'
\
\ ' '
5; ' , - •
ji .
!.' '• .'.•'.••
1 * - '
f ! • ' . '
. . , 1 . .
I
•*
C ;
o5250 + ' '-J
' M
'" ') . '
V ii» ' •
/ . .
• i f 1 • •
! • • . -
1
t 1 1 J B ' - . '
' - 1 ' i n ' . •. • • •.• ' A
.3500 + j\ ' 1 ' 1 '-.? i /! /
1 \ 1 "I ' ' t •• ' 11 /
' \ / i * i 7
; '^ I V • Mv /
\ M
»1750 -v 1 1 : 1 / .
1— — — • 1 ' 1— • >1 1 / 1 1 i 1
~~~ •".-- --2i^ix b/^ \/
11^ • \/
0.000 + . ' . 1
162«5 137c,S 212o'5' 237t5 262»5 287.5 312o5 337.5
175oO 200»0 225.0 250«0 275.0 300.0 325 oO '350
+
0
6
9
\
t
*
+
9
f>
s
^
+
V
c.
*
0
•f-
.
*
e
0
e
e
+
it
-1
N .
o
362 »5
• 0
•f June 4 July -f- August . -f September__-{- JDctober -f November ^ December -f
-------
;7\
• 7
56
fa
p< &5
<-^
(U
s
CO
'c • / •
u 8 «
-P
W
co
w
c
162o5 187*5 212*5 237o5 262*5 287*5 312,5 337»5 362.5
175*0 200»Q . 225*0 2.50 «0- 275 «0 300 «0 325*0 350*0
T June rf- July -f August •+ September -f- October ~f- November -Vi December -r
-------
'
"
.30
s
to
J-7
w
o
c
•H
M
•H
CO
'•20
7
6
l-
+
0
+
.15
cTO
05
River at Plarrisburg, Pa.
1977
f
Dstection Limit 0.04 ppb
June
.
-Qsi2S?.iL_ 4 venler
t
t
c
c
o
c
+
•«
6
»
-------
p * +• o * e » + o/. oo.+ 4*ct"^o»c
' + «S3»+S«*«'*'*»9 I"1' * • 4."1.* * *
Susquehanna River at Harrisburg, Pa.
1977
.18
• 15
,0
Pi
H
W
J2
O
)iir.azine (East
M
a
o
J «IJ6
j
~
c03
0* n
»u
0
: /
/
/
; K /
•»• i '"• i
e j
, i
* •
e . . •
4 \
0 }
; . 1
i
°
& i
/
0 /
J
/
+ /
/
/
: /
. n i
+ ^— i
16?. *5 187>5
',. ' • • +
•'.•'. • • ' ' • *
' ' t
1 »
I ' ' '
• ' 1
11 '
' 1 *
' . ' 11
1 1 '
J . t
I • . s
\ A /\ '••'•' '
\/ \ / \ Detection Limit 0.04 ppb »
X . Tftf M . %
\ • ' ' ' ' ' ^
\ .' ^ ' ' - ' ' ' ' ' +
\ ' " '
\ , '
\ : :
1 — — — — ~ — _,.•.•> < 1 . 1 . •> •> 1 1111,1... 11... i.,ii j.
i ~~.»^.^« -*-„,,<_ |_ -]_.. j— ^.^ — •] ^-| -j •].. -j .-] -j... .^ ._-] -) +
212V-51 237t'5 262.5 287«5 312.5 337*5 36?.. 5
n . ?00»Q 225oO 250*0 ?75 »0
•f July i August__ -f _September_. 4- -..jpctQiber
~"~ " DATE
325*0
Npyember -f
" ~
-------
F
L'
0
, V
.
s
99*39+999 9 +
»
e.. *
9+"9 9
17500.0 +
9
«
e
*
150QOO+
0
125000+
0
0
0
100000+
9
9
9
75000c+
5.0000
25000o
0
0
I +
9
9
9
9
Susquehanna at Karrisburg, Pa.
1977
--1 — r
\ >"
\ s
r
C 1999+999 9 + 909 9!+ 9999 + 9999+9 ••09 + 0999 +
16'2-o5 187*5 21245' 237:
T75«Q 200 90 -225'»0
,-f. June _ f _ July j- August
9
9
9
9
9
9
9
+
9
9
9
9
4
9
9
*
9
25090
262»'5 2.8795 31295 33795 35295
275.90 '300«0 32590
September_ .j. October ^ November^
U7H-E '" ~
35090
._ December
-------
-
•o
03
O
2
7\
CS
105
90.«
60»
75. :
«
c
«
•
30.: +
.
e
•' «
15-9 +
*
J090 + 049. + 99.9+.9099* »999+9009-»-St'0« + 9P8« + 9999+««9»1*»»»9+«»
1 +
Susquehanria at Harrisburg, Pa.
1977
162c5
June
187o5
3 ;
+. July
0
9
+
0
C
.
e
•f
' t
9
0
212rf.5 237 «'5
3 12 25 o0 '25090 275
_J • •* • Augustj -I- • September .+
'""DATE
»
9999+»«9* + 9t-90+9999+9999+999V + 99.9*9«
287 tS 312.5 337.5 362.5
90 '300.0 325.0 350«0
_°Si5PG?_ "•" L_N°-v?.^b--r-
337.5
' December,, -f
-------
• 21
(3
{0
O
(U
C
•H
c"
9.
6.
0*
« e . « . + « . «.-»••* « *+ e . » » * e . » o +..*»» +,i » f • + i ••••+."• if f* t • t f + • i ••+•••• + •'*
, Susquehanna at Harrisburg, Pa.
9a+»000 + 9»«.+ «0«»'f*>" "'* ' *
"V
0 v>
; .....'.. . .;.
o
. . . • ' . •' . - ' '
I'"'.'-
+
e
.
.
«
.<
0
»
• i
i /\ '
: \
/ \
: ; / \
.
I
i
•1 '
l\
\ \
\n .
\ 1
;' \_,
I j X
. . \1 /•...
0
+ . 1
1f2.5 187.5 212W 237 .'5 2C2.5
.'
' • • \
l\
A/I
i
V i
' 1 .
\
A
l\
i
\ '.
1 1
j
[
• i
1
.-, ^
i
j
• i.
i
y
f
I.
.
1
,,-1 /
I /
-------
o.'l/j/c. X s s -•/--.. fJ i*
5 i\ * 0 C ,:• ?l{(I S ? t.1 I/I K
-------
UPPER CHESAPEAKE BAY
A! — SAMPLING STATION
-------
"r.7^S-'i...H. i.i Li.tl; ;'u.j.j^."s i-ivi-; ^ii-J-.^.i J.:Zi!.V.r!.'..'i:.~Tr:'rii~.'^-_^.';,.'.i;i;
I I i • • • I ^™>*i»».:[ l > • I I i • I' i f! i I i • ' • i • i i : i • • i . I . . • . i . • • i p • • * "-"~—~.
'
~i:;in JJ- H i-'"i! '•&'• n':T:': I:: !';'|7:'i i I.':"'!:': ^TTrrr--
rr^jrO.A^^J^,^^:.;!} i * i: j::::!:::; j^: i |j_;
J'lJi . Hi. !:ir: r':;; i!j! :::;•;::.':: ;:i" •.. —•::!!!!:;
-------
i:i;:;: :|!:: 11.:::!;;!:!::: i\77*>\~^ii!:.:!:: .':; :;j i
ri-rili:: iillhiJMllifcSTn-liriTsyVHTTT*
/
|SHi:!-:iii^iH!HS^
lllife^^
(jnplfiliifelilliij!!
ilpl^iMrjiiij.j •:•..!]_:
-------
*./\
\
kfttOCC T" O
XEGENO
O HAJOS WASTE TREATMENT PLANTS
A CAGING STATION — WASHINGTON. D.C-
DISTRICT OF COLUMBIA
ARLINGT0^4 COUNTY
ALEXANDRIA SANITATION AUTHORITIf
FAIRFAX COUNTY — WESTGATE PLANT
FAIRFAX COUNTY — LITTLE HUNTING CREEK PLANT
FAIRFAX COUNTY — OOGUE CREEK PLANT
WASHINGTON SW3U33AN SANITARY COMMISSION - PISCATAWAY
ANDREWS AIR fORCE BASE - PLANTS ONE. FOUR"
FORT BEXVOIR — PLANTS ONE. TWO
PENTAGON
FAIRFAX COUNTY — LOWER POTOMAC «>LANT
A
B
C
O
E
F
C
H
. I
J
K
> . o
POTOMAC ESTUARY
-------
4-M-J-i-,.^.
:i!.Tl|!|!
• i > . ! I i I .
lillltii!
r;:|.!h|i;
•|-!T.-7?
111 • ).>«. -i.
<-t-r;-H—'•-
yliflJH
eft
XM
:r.l-
:H-! TJ-I
$"
i
1.
TU
JfL
-i'! r
Hi
W1,
J: !
Jim
inp
j.un-i-'-i
!!:T.:i|
:.!!i1i!il
MM
it
:;«
,.;.!. .; i.. ..
i^Jtri
•Fir[
T4t.
H'!
: •:].! il'j.i-j
jHWUL
!t-,:i j:n
111111 •
MX
ism
::-rtrt
i.ribr: rs
h:i.Hi-!!
•>JE
fin
.f-i
Hi
1
riiT
.,.,.. .,..|..
iMU^al
,U'i:;.
i:il
j:i±!.
I
•v H-<
'•IN
:!:r.t.»
m&cwi
ii
—--M-
!{.!!
xLti.
i:;.||
nil
.jii:
ilfj
Hi
'iT-tl'
4i i.
ifll-
ii-i.-:
lii
ITH-Trn-
i I
:0
rH i
.r|.!4
.Hit
I i.»t. 1.1. l. I
IriTO
t|i 1. t!'
"^44
4.+;
fill
. 11 •
ffil
•W
'.'''- ii:f
. ..'• ^ l.:.i I
ItPflih
t'l*! !
r**i !~*v
fi
- j.i-l
.LiH.
i
(ITJ.
:a:
rrf:
nr
Ti
.j.j |.l
h'l
;iii;
;!5tttL
ffliilf-^
— rH •'T-I-)"M i-i
-M—t-'A»"4- -T*T
i.
m
m
H±t
:trr
i.;
Itf
•tt
IT!
r-ir
^1
pi^
11-lH
•t •:;.:!!
j;it!i
•;in
.lid'
3W
:t-J|j:
•, '''iii
,1:,:^
f&[
h|-!
I!
if
it
,.i i..
r|
ti
Kli^
I,.:
•iitt
Jit
!:lli
•I'!4'!
' '
I"
fl
trl[
•rrti
II
iiil
ffii
Hi
:!D
IftSffi
It i iT
Tit
•Li:!-!:
iW
Jj.j-j.
im
•i i -i
• •'
.hi IF
rhi
iiipi
i in HI
JJSI
•H-N
iiL>
.1.1.11
»!
t'tl'l^rrl
]Kr
•3 !t!|[r::;
iTJTjT
iT3
itl
t|tm-!
J!l
.«|
;iul
l-i± .' .•[•;•;•;
if4PrilJHi-:i
•M-H-j; ••••!
iltfc
1
iff
ftiM
{ill
!::!:!
Hii
U-
:i! I'l
^•!t!
fc
I I- l-t
1.4i.
frfi:
{.fjif,
l-l N.:
M^ii^''ij^i^iltl:l,:: Hi
jjiggjj^immm-j.
.i!ii. ;;i!
•iWi
--H-'r' !
ffi
11
tlr-i
•Ktb.
jtT
IH!.
Lut
ttn
ill: 'Jii
•i'• • i !•
. i •. ••• •'
fifep-j-;
I I., . .... j. I ...... i
..,..j,.,.|;;!;l!'.-!;|!r.-j;j.!-
•TjMliH iiiil'TFiTliliir:
tHt
• i>
+li.|
lL±:LSiU±!|Ui|.j,
Mill!
W!
4^
i 11
ft
t. LI
i
-itl
•r-n
ri •
i.i.i.i
»
fr
-•k
i|:!l
tjj-
4-..)•<•
!!i!
ar
1
!iii
l!S
. -
•i ••! • i" •
iitllli1
!:ja-H|i:
i MI -I'
tirr
ti! •
It:!
rrr, .
i
M
mi
i
ri i
* • i -it
~UU.;'' L
rrrr
''i'nii'iTi'ii':'': i'i;':: ;!:';!l";:: 1 •"':[': I
.liii jl-j-L-UJiLLL jJiiliiliLilLLii:
;•!;;
f"!!
T^Q.1 ;::.;;•:;
j^dfeii
11 ' i ; i i . til. I .
1--I- --i'l-' •!--:!M-'i'l
Hfc itiT
illHsJl
i-iii
L'n
' '. ' i * ! ! '1!.! * ' ': i ! '^.|.|.U.Ll.l.U.
:!::':!•::: -li'li:
. ! - _ __ I _. : __I _
iA"V
-------
TTiTi'jT!; Till TlTi"
M&11&
;!l;!!lii!ii;|!S!i
T;TJTr.:i!iiiii:'iTi'
ii!.l-:U\f.LlHtfl:|i|:|:
iki: .-lli\ liJJjIiib. --&.
ri:fT:(.(.!iVrftl.ItfI .111."
r1--! -M \\\r •'t'-' • ti-
•qj'' T"! \-ii 'I' TJ: i iv-
i!l! ::.ttl.j\!. ITFT -I ':!.t
" \ : '.i i '
-u O^ ...... " . • ^- ^!H.I:I.-. »t.;.p.ll.
!j.;!|!i!; !i::i:li: iiii !i:;
'I^ilinTrnT! pr 1 ;•!.;.: 1 1 : "
!GJ;rrrrrri[i.li .-:;:[;;;;
.(-;-. .n-i^.. ^_j44-j-j.-f-^— IT
J Lfm.l|:r| Jit -H /!
^y. i.WilL'iiJ^:
^HUi^x^if-K
imth-ii&urf! |-!•
rntt TTr": iTK" TTTt '17
M- 1 'fr •'•fii'-F'-'-'^11
UitemiSf"
ill lii ii! i i i I ii
ill L.ij.ii4j.i:J.L:;j:.:lL>J4.:
litiniLh: ;;!j p.; ::n:T:
fet-S^:!: ::: n: !i!;|:;
ijiliiiiiiiiiitriiinlitbl
iL.JJ.'li.L. ..(...:.i ..4.JJ
Jb\1i|.!l-M-:atl:%l4l:il lj
•ijj.fcjH-4:r|j- mjiaJTi'iJlii
llfiimffl
iniiti lyiiliiiiiii
*\ HA Ifu n,!1-i.-! r;r:-.ri..;: -:r:n:ri;! ^.iq^H f
'•^MfWliiripittHiifli
_ • 11 .1 I • 11 • •': j i •'. • . • • • ! i': I • i i
_ rri'Mli !:-i:.;-:,r r:i::••:: : :; nr; ;:f: rri': :
iillliliijiiliOiiLiiliil^liLl^
-------
I
c
OJ
•o
1)
V)
o;
'O
c
a
CO
210
1 75
1/.0
1H5
70 i.
35
T\
G1
Susquehanna River at Harrisburg, Pa.
1977
'•+ Jyuie
1S7«5 212751 237*5 262*5 -2S7.5.
200-jQ 225cO 250.0 . 275 »0 300 o
-f- July v-f August _ ,f September -f- ...... October .
.""" ..... • ' "DTTE ..........
312o5 337o5
325 e.O
November -f,
0
*
c
4-
t
•f
0
V
f
+
9
C
3
e
0
c
I
•f
V
c
c
362.5
350.0'
December -f '
'
-------
SUSQUSIIANNA RIVER AT H.1RRISBUKG, PA.
Lab No.
77071315
77071316
77071317
77071318
77071319
77071320
77071321
77071322
77071323
77071324
77071325
77071326 .
77072701
77072702
77072703
77072704
77072705
77072705
77072707
77072708
77072709
77072710
Date
6-S-77
6-10-77
6-17-77
6-24-77 .
6-30-77
7-8-77
7-14-77
7-15-77
7-19-^77
7-21-77
7-26-77
Location
East
West
East
West
East
West
East
V/est
East
West
East
West
East
• V/est
East
V/est
East
West
East
Y/est
East
West
Atrazine
.16
.30
.19
.37
.18
.25
.27
.32
.64
1.21
.54
.18
.55
.96
.24
.44
.26
.27
.27
.62
.15
.24
Siraazine
115/1 T>Ob
<.02
.16
-<.02
.20
.03
.20
.06
' .22
.16
.25
.15
.05
.20
.28
.C6
- .16
.04
.15
.Co
.31
.04
.14
-------
SUSQUEHAHNA RIVER AT HARRISBURG, PA.
Lao No. Date
77090101 8-4-77
77090102
77090103 8-12-77
77090104
77090105 8-25-77
770901O5
77101305 9-29-77
771013.07
77101303 • 9-30-77
77101309
77101310 10-3-77
77101311
77101312 10-7-77
77101313
77101314 10-11-77
77101315
77102703 10-17-77
77102704
77102705 10-18-77
771027C6
77102707 10-19-77
77102703
77102709 10-20-77
77102710
Location
East
West
Ease
West
East
West
East
Y/est
East
West
East
Y/est
East
Y/est
East
Y/est
East
West
East
Y/est
East
West
. East
West
Atrazine
US /I T>T3b
.13
.17
.10
.12
.08
.12
.09
.06
.07
.05
.06
.08
: .07
.06
.05
.11
.06
.05
.07
.09
.07
.07
.07
.04
Sircazine
ug/1 ppb
.06
.11
.04
.07
<04
.07
< .04
._ .04
<.04
<.04
^.04
.07
<.04
.05
<.04
.10
^.04
<.04
.<.04
<.04
<.04
<.04
<.04
^.04
-------
SUSQUEHANMA. RIVER AT IIARRISBURG, PA.
Lab Mo. Date
77111701 11-1-77
77111702
77111703 .11-7-77
77111704
77111705 11-8-77
77112201
77112202 11-10-77
77112203
77111801 11-11-77
77111802
77111803 11-14-77
77111804 '
77120701 . 11-16-77
77120702
77120703 11-18-77
77120704
77120705 11-23-77
771207C6
77120707 11-25-77
77120708
7712O709 12-2-77
77120710
77120711 12-4-77
77120712
Location
East
West
East
West
East
V/est
East
V/est
East .
V/est
East
V/est
East
V/est
East
\7est
East
•Y/est
East
West
East
V/est
East
V/est
Atrazine
.05
.09
.20
.07
.22
.30
.25
.35
.10
.28
.17
.16
.12
.12
.05
.11
<.03
<.03
<.03
.08
.07
- .15
.05
.12
Simazine
1)2/1 T3T>b
<.04.
.05
.16
<.04
.09
.08
<.04
.04
<.04
.05
^.04
<.04
<.04
. W-f.
<.04
<.04
<.04
<.04
<.04
.14
<.04
<.04
<.04
<.04
-------
SU3QUEKANNA. RIVER AT HARRIS3URG, PA.
Lab No^
77011001
77011002
77011003
77011004
77011005
77011005
77011007
77011003
Date Location
12-15-77 East
West
12-16-77 East
Y/est
12-20-77 East
West
12-23-77 . East
West
Atrazine
ue/i cub
<.03
.41
.03
.10
.05
.11
.03
. .03
Simazine
us/1 Dub
<.04
<.04
<.04
<.04
<.04
<.04
<.04
<.04
-------
TIM?
1500
1430
UOO
1310
1H5
1 400
1.400
1400
1330
1430
1330
1430
1515
1030
UOO
135?
1330
134S
1330
1030
1410
uin.
114.1
P/.OOOO
FLOJ SEDlMFilTS
CFS • PPM
>?840CU 79 ib
11*;p
27.3;b
94 iO
.34,0
4 6g
11 .0
131 iO"
1?"!iO
1?0.0
. 7?vO
67. .0
77iO
1.5,0
11 9000 •»
44 600 e
? 960 On
74 600 v
202000.
Vzaoo,
1 ssooo.
76600 »
•'zrnoo
76600.
234HO,
19500.
14 700 e
69 HARRISBUftG/P'i
INSTANTANEOUS MFASUnntNTS
... '.. .. ATKAZINF;
r:= = s = ssss=====:= = = = = = = = ==:=: = s:sss = ==7r=:r:
ppi?
OS 04
n'1'04
.Qo04
a. os
Oi03
0.03
OiO
OiO'
0«06
0 1 1 7
0.25
Oi2^
Qi15
nB07
n«3b
nil 7
0.10
0,1?
n,&r
0.24
Oi31
WEST
PPO
0*09
0.11
0.10
Oo06
0.07
'• 0 ,05
O',03
0.10
0»11
Of 15
0.11
O.S3
0 154
0«42
0.25
OJ13
0.50
0.35
Oc15
OslA.
0.74
LOAD
KG/DAY
15.7 .
?4,3
35c3 ,
23.6
35.3
19.4
8.7
'5*5
5.3
4,5
7*0
247.4
185.3
149 S7
39-7
22t4
75*1
46,3
1U2
. 13*3
26i7
11 o7
44,3
ATRA/SEO
PPM .
0,82
bo 65
. OJ30
' Oo52
' ' 0,35
0.43
0,83
?.,27
4.53
13.75
7,73
'..62
3,16
2»71
2.73
1.59
5..19
4>00
2.98
8.85
35.67.
.11.14
61.50
SSZ SSS1Z
EAST
PPB
OeO
0.0
0,0
0.0
0.0
.0.0
0.0
'0.0
0.0
0.0
0,0
0.04
Oo06
0.07
o.ns
OrO
0.09
0.06
0.0
0,05'
0.17
0.06
0.10
SIMAZINF
WEST LOAD SIHA/.3FO
PPH K6/0*Y
0.0
OiO
0.0
0,0 '
0,0
OtO
0.0
0.0
P»C"4
0 .04-
0 60
0*23
0*17
0,13
0,07
0*10
0,1?
0,14
0*03
'0.13
n.05
Ot11
0,52
0.0
0,0
0.0
0)0
OoC..
0.0
0,0
0,0
1 ,V
1.2
0,0
66,8
54 ,1
46.1
26.9
11 ,2
20.6
17,6
3,6
5.2
5,5
4,1
11 .2
0,0
o.o -
0,0
0,0
0,0
oko
0,0
0.0
1 »67
5,00
0.0
1,03'
0*92
0.83
O.R?
0.79
1 ,43
3.46
7.7-'.
3.S6
15,50
-------
CHESAPEAKE BAY
Lab No,
77061441
77061440
77061438
77061439
77061437
77061433
77061434
77061435-
77061436
77061442
Station
20
19
14
18
5
T2
T4
T7
T10
A3
Date
6-14-77
6-14-77
6-14-77
6-14-77
6-14-77 '
• 6-14-77
6-14-77
6-14-77.
6-14-77
6-14-77
. Atrazine
xui/1 nnb
.66
.61
.75
.70
.41
.45
.44
.18
.10
.11
.11
.12
S imagine
xiar/1 Toob
' .18
.15
> .16
.27
.29
.12
.18
.20
.03
.04
.04
• .04
.04 .
Salinity
0/00
'••- •* - .17 .
•7-.''' .16 f
? •- C .17 -•
t.Vi .30 ':
*,*.~i 1.42 i.
•'-'••- 1.26 '
''?,?.'•' 2.90
$'-!.: 3.70
' :>» 4.40
-------
CHESAPEAKE BAY
Lab Mo.'
7/0/1501
77071502
77071503
77071504
77071505
77071506
77071507
77O71508
77071509
Station
20
19
18
5
T2
MA
T10
D2
Ml
Date
7-11-77
7-11-77
7-11-77
7-12-77
7-12-77
7-12-77
7-12-77
7-13-77
7-14-77
Atrazine
xis/1 TD-ob
.78
.63
.56
.34
.32
LA
.24
.12
.09
Sirrazine
us/1 T?nb
.22
.22
.21
.18
.11
LA"
.07
.05
.03
LA - Laboratory Accident
-------
CHESAPEAKE BAY
Lab No^ Station
77031809
77031311
77031832
77031813
77031815
77031819
77031825
77031607
77031623
20
18
5
T2
T4
T7
T10 •
A3
D2
Date
8-13-77
8-18-77
8-18-77
8-18-77
8-18-77
8-13-77
' 8-18-77
8-16-77
. 8-16-77
. Atrazine
ug/1 ppb
Total Dissolved
.19
.23 .24
.54
.36
.37 .29
.29
.18
.17
.16 .15
.14
Siinazine
ug/1 ppb
Total Dissolved
.09
.0-9, .15
.11
.10
.03 .11
.07
.06 !'
.05
.05 .05
.05
Salinity
n/oo
.42
2.02
4.92
7.20
9.22
9.64
77031635
F2
8-16-77
03
.02
11.30
-------
STATIONS
Chain Bridge 0
Above Windy Run (opposite Georgetown Reservoir) l.g
Key Bridge ' " 3 35
Memorial Bridge . - ^ 85
14th St. Bridge 59
Mains Point ' 76
Bellevue ' .. 10^0
Hoodrow Wilson Bridge . -J2 i
Rosier Bluff 13 6
Opposite Broad Creek ..•' , 15 4
Fort Washington (Piscatav/ay) 183
Dogue Creek - Marshall Hall 22 0
Opposite Gunston Cove 25 o
Chapman Point - Hallowing Point 27 5
Indian Head 30 6
Deep Point - Freestone Point 34 0
Possum Point 32 Q
Sandy Point' " 42 Q
Smith Point . • 45 8
Maryland Point ' 52 4
Opposite Manjemoy Creek 58 4
Mathias Point 62 «
Rt. 301 Bridge ,7 .
O/.'r
-------
POTOMAC INTENSIVE
Lab No.
77071801
77071805
77071803
77071810
77071812
77071314
77071817
77071818
77071819
77071820
77071821
77071322
77071823
Station
' P8
2
' 5
6
8
9
11
. ' 12 .
13
14
15
15A
16
Location,
Chain Bridge ' '
14th St. Br.
W W Bridge
Opp Broad Cr.
Dogue Cr, -
Marshall Hall
Chapman Point -
Hallov/ing Pt.
. Possum Point
Sandy Point
Smith Point
Maryland Point
Opp Nanjeinoy Cr.
Mathias Point
301 Bridge
Date,
7-18-77 .
7-18-77.
7-18-77 .
7-18-77
7-13-77
7-13-77
7-18-77
7-18-77 .
7-13-77
7-18-77
7-18-77
7-18-77
7-18-77
Atrazine
,' urr/1 ppb
,46
.53
.85
1.15
. . .84
.55
.24
.15
.06
.06
S imagine :
u/r/1 ,ppb
.34
.44
.58 '.
.78
.49
.33
.14
,03
•
.05
.07
Salinity
0/00
.63
.1.00
3.94
5.40
6.34
7.52
-------
POTOMAC INTENSIVE
Atrazine
Simazine
Lab No.
77082201
77032205
77082207
77082208
77082210
77082211
77082212
77082214
77082216
77082217
77082218
•
77082219
77082220
77082221
77082222
77082223
Station
P8
2
4
5
6
7
8 •
9
10B
11
12
13
14
15
15A
16
Location
Chain Bridge
14th St. Br.
Belle vue'
W W Bridge
Opp Broad Cr,
Ft. Washington
(Piscatav/ay)
Dogue Cr. -
Marshall Hall
Chapman Point -
Hallowing Pt.
Deep Point
Possum Point
Sandy Point
Smith Point
"Maryland Point
Opp Nanjemoy Cr,
Mathias Point
301 Bridge
Date-
8-22-77
8-22-77
8-22-77
8-22-77
8-22-77
8-22-77
8-22-77 .
8-22-77
8-22-77
8-22-77 .
8-22-77
8-22-77
8-22-77
8-22-77
8-22-77
8-22-77
ug/1 ppb
Total Dissolved
.38 .34
.34
.40
,42
.49 .44
.45
.48
.45
.39 .
.25
.13 ' ' '
. ;
,08
.08
ug/1 ppb
Total Dissolved
.33 .32
.39
.34 '
.36
.35 .33
.33
.33
.31
.19
.14
.05
.03
.04 ..
Salinity
0/00 _
.42
1.22
2.36
4.20
6.53
8.52
8.94
9.90
Spike recovery conducted with sample 77082210 yielded recovery of 36% and 78$ for Atrazine and
82$ and 73/5 for Simazine
-------
UNITED,~TATES ENVIRONMENTAL PROTECTION AGENCY
T INAPOLIS FIELD OFFICE, REGION (
UBJECT: Herbicide Partition Coefficients DATE: October 2, 1978
i
Ci f\
?ROM: John Austin yr*v
Chemist (/
ro: T. 0. Munson, Ph.D.
Chief, Organic Analysis Unit
A possible enriched microenvironment caused by suspended
particles bearing higher concentrations of herbicides than the
water column could expose rooted aquatic plants to higher and
possible toxic concentrations, even though concentrations in the
water column are very small. The herbicides atrazine and simazine
are slightly v/ater soluble (atrazine 33 ppm; simazine 5 ppm) and
exist mainly in the dissolved phase in environmental samples,
although some small fraction is absorbed on suspended particles.
Due to the low concentrations in the water column, accurate determination
by difference can not be attained, as the amount absorbed is equal
to or less than the analytical uncertainty. In order to collect
sufficient suspended particles for direct analysis, a large volume
•sample (60 1) v/as passed through a sharpies flow through centrifuge.
Analysis was performed on filtered, unfiltered, and suspended
fractions.
The concentration factor for the suspended particles over the
water column was 218 for atrazine and 542 for simazine. The
distribution partition coefficients (Kj) for the absorbed to dissolved
phases'were 221 for atrazine and 543 for simazine. The suspended
particles were found to be highly organic (volatile solids 40%).
The distribution between solid and dissolved phases is dependent
on such factors as the amount and composition of the solid, surface
area, pH of the suspension and solution, and the amount and type
of organic matter in the solid and in the dissolved phases. Reported
Kd values for atrazine i^ soils (1 to 16) become larger for high
(ca. 74} organic solids. Kaolinite was found riot to adsorb atrazine
(Kd=0), illite and montmorillonite showed moderate absorption (Kd=4.3),
while peat moss showed greater adsorption (Kd=92).2 Studies of
Chesapeake Bay sediment reported a concentration factor of 23.3
Coring, C.I.A.; and Hamaker, J.W., Chapter 2.IN: Adsorption of Organic
Chemicals in the Soil Environment, Marcel Dekker, Inc., N.Y., 1972.
2Talbert, R.E.; Fletchall, D.H., Weeds Vol. 13, pp. 46-52, 1955.
3Muby, L.; Ciba-Giegs, Inc., Personnel Communication, June 1978.
EPA Fo
-------
: ',9/21/78
1 t
Station £20 Havre de Grace
Water Column
Total Atrazine .28 yg/1
Simazine .15 yg/1
Dissolved Atrazine .27 yg/1
Simazine .12 .yg/1
Adsorbed Atrazine .0004j^g/1
Simazine .OOQ5jtlg/l
Suspended Solids . 6.4 mg/1
pH 7.5
Suspended Particles
Volatile solids 40%
Atrazine 61.9 ng/gm
Simazine 83.4 ng/gm
Concentration factor over the v/ater column
Atrazine 218
Simazine 542
Distribution partition coefficient (Kd)
Atrazine 221
Simazine 543
-------
i+l We o + i
Z45QOO+
u
LO
o
w
s
o
0)
•*>
c
10
I
1 75000+
105000 +
• 1
7000Pt+
i
35000e+
o
: o
t
• V
*1 1
90» 102
84. ,96ft
March
Susquehanna River
Mile 69 Harrisburg, Pa.
' ' 1978
1 f*^&*m* J
103
April
114
126
e
t
•
•f
i
t
138
e t v + » t o
1?0 132 144
* f ' -May _
DATE ~
150
156
162
-*—
168
' June
174
180
-------
» +0 9 V
I
w
+J
c
c/j
w
§
01
c
CO
-p
210
.175
70-
35 »
:OiO
Susquehanna River
Mile 69 Harrisburg, Pa.
1978
1 e «+ » 9 o t
a/ 9°' «, <102 1U 126
34. 96. 108 120
.' April \> May
' : DATE
13?.
144
150
*/
156
168
'• June
180
-------
•p
w
c
•H
N
2
I *625
500
,125 +
•OtOP
Susquehanna River
Mile 69 • Harrisburg, Pa.
1978 . . .•
-------
. ' * " - * • v •• •* * m V • V 9 1 9 rVVQV^VrVS^*09tTOVffr«tOtl'''Og|eTt9a (, +
• t , Susquehanna River . •
, • Mile 69 Harrisburg, Pa. ' . •
!978
9 . '
:2»10 +
•
ti
- i
*
V •
1 «7^ +
,00
Pi
Pt «. .
g'"x o • • •
*«) • ' * • ' •'•'''•
C • •'.'...
2 1 ȣP +
(0 '• .
,c t . . • • .
o .
-p • • •
Mi' . ' ' . • '
_p . .
7 . 1i05 + •
c • t, • • ' • •
•H - ' .
N 1 . • . •
B . .'.••':••• • ' •
3 • • ' " • 1
.700 +••'• /I
' /I
v /I *
t :•• . » / i 1
.'in J ' ' • / 1 • /»
• /. . / i /i, v.i<
k -v * / \ »*•* W;
* 1 / W V^ ^V^
• .. • i ' \ / \ *r • ^N»--(
1 ' ' 1 . \ / \ ,«r ^ 1-***
* / ' jr 1 «8»«JM»M 1"-"t»vr 1 % ^X^
^11 ^••••••••q ^ ^ *^^_^ *! jP***^
:°800 1., + ^^1---^^ . . :
84. 9°' 96, 1°2 103 '1U 1?0 126 132 1?8 UA 15° ^ -1«
March ,. .. . Awil 12" T32.; 1U ..... 156. _ 6i
«
*
*
1 *
/ *
/ c
1
/ °
/ v
I
/ »
/ +
/ .
J
/ *
/ «
i °
i .
»
; • *
«•
? *
I e
4- »
f +
*<
4:' *
1 •
i
:r »
I '
>
) • ;
/
i ;
pl>j^i «
«
«
0
8 1?V 180
'
DATE
<* - "June
-------
1. «2?5
OJ
M
2
0)
-------
00+0009+* t.f
w
s
0)
c
•H
tf
B
245
210
175
uo:
105:
70e
35
Susquehanna River
Mile 69 Harrisburg, Pa.
1978
torch
*/
102 1U
• . .• 108
____April_ '
*
I
»
0
•f
Ir
I
*
t
*
0
180
DATE
-------
6?
54
a
a.
*— ' 45
w
-P
c;
0)
•3 '
13
$ 36
•
ft •
CO
C
o
-a 27!
G)
£j
w
w
*^1
0)
.5 '18
I
9t
0.
/,
* . Susquehanna River
* ' ' . • Mile 69 Harrisburg, Pa.
8 ' v 1978
t
* • •
* . •
» • -.'.-. ' • .; .
« ' • ' '
* ... ••••-..-
* . . ' ' '
« . • • . .,''••
* . ...
0 .
* '• ' .''-••
+ -
V • ' . " ' .
c ' ' '..-•'•
* . -
8 ' .• '
* • ' ' .
, '
• ••'..•
9 • .'•'••'•
. •
* . ' ' • .
+ '' 1 .
/V
• / \
• / \
/ \
: • • • • :-'••'•• 1 \
0 W T
•••.•• ,-/ V
X \',n A
,'itr •(' Iv y . I
*«., -«- ^a^-^*l^1 1
+ 1 < sr«.ft7 111 *vji»w«f«<»:«ja3i/ 1 Vf'*^
90r 102 1 U 126 - 133
8^» 96» 108 120 132 U4
torch : XN*^ • APril ' * May
.•'.. . UATI: •""
, :+
, ^'-«
.1 a |
'j
/ °
/ '
/ +
/ '
/ '
/ :
/ •
/ :
/ •
/ .:• •
/ •
1
/.I /
I / •
\ " :
\ ;
i / . t
\ \ *
T '
\ ' *
• V i ft
i f •
/ U
/ \, / +
/ \ ••
/• /
/. V
1 1 *
'>1
/
>^
^ ;x
* . ^
0
+
150 16? 174
156 168 180
+/ ; June *
^v :; . . «.——...—.«-,_.
-------
(gti+ttbv+ttcit+ttot + tVQo+enet + toca+oisnv + toQo+Poao+toot+a
617C + ..- Susqueharrna River
. Mile 69 Harrisburg, Pa.
1978
e + » ». •
•a
pi
CO
.q
o
t
«
• e
•150 +•
t
t
I25 +
100
c
•ri
N
h
•r-i
CO
o
•' »
o
075 +
v
»
6
,050 +
i
i .
ll
M
tO?5 +
: t
Detection Limit .04
••o.oo +1? 111
1
1
V
+
*
»
«
•' vti«+t09c + f««» + «»t«+B»»*+e»»e+»e««+fti»«o + 9»»«+9a»t + »t»«+o»»t+«»i»+»««»+fc*»8+*«o«+flt»e+9«9
. 90o 102 114 126 138 -150 162 174
'•, 84. 96» 103 120 132 144 156. 168 180
March .*/ . 'April . Jf__ May _ N* ' *
" DATE" ^
June
-------
f>
^
r-l
0)
g
0)
O
-P
w
_0)
^
V
c
•H
t-1
'.y
•rj
CO
aS?^ + / Susquehanna River '
» Mile 69 Harrisburg, Pa.
* • v 1978
0
•450 + . . . : . . .
C • ' '••'.•
« • . • ..'...
e .
i37F • * ' '. '
* . • '
* • . • • . '
. .300 + ' • .
t ' •. ' .'•••'
•' » .... • . ' . ' •• • . •
9 . .' •' ••'••'.
c • • • •
i 2 2 5 + ... 1
• /t.
/I
1 / \
• . ' / 1 •
' »1-0 + / V '
* / 1 11 ,1
1 * / *v y^ \
1 \ / \ • s \ • •
•«• 1 • I 1 \ / • \
1 I/ . \/ \ • /
»075 + Detection Limit .04 I 1 1 \ /
° ' I ' ^ /
o •'••••/ • X» • .
Onn j. 1 ? j- " •• 1 1 1- — ••• -,-"--^-1 j ^^
90* 102 11A 126 • 1^8 150 162
84» 96. 108 120 132 1A4 156 168
March */ April ' * . May -*_ June
V _ — ' OATP :
-V +
-/ *
-/
/
/ •
/ *
I *
/ *
/ '
/
> u
1 u
i 9
I' •
* f
/ tf
.' *
.
•• *
} 9
i' +
' *
i' ' "
" »
/ ' ' ' *
/ •*
«
1 3
/
«
+
(
e
t
174
180
-*
-------
35
,D
P<
QJ
K
-------
7P
co
ja
u
3
-------
17»5 +
•»
u
Susquehanna River
Mile 69 Harrisburg, Pa. ,
1978
15.0
6
12c5 +
c
Q)
(U
tn
p, 10iO
t-o
t/)
6
TJ
q
•H
h
•H
CO
«
+
«
»
c
»
+
u
V
>00
-111.
-1.
• 11
(!>"''8*»+««9l'*'.»«t»-»-»«»»-t-»»»* + «(l9«+«»CO+t«»« + »»l>«+»ti«» + »»»a'*-»»ft+»f»0+t««»+«»»t+«t»» + »«»
90ff 102 1 U 1 26 138 150 16? 174
861 96. . 108 120 13? U4 156 168 180
March :
April
-*x
DATE
June
-------
UNITED SJ^TES ENVIRONMENTAL PROTECTIO^GENCY
Wnapolis Field Office, Region IIF&
StaSi
®
•«*«
DATI£: August 2/f, 197 S
SUBJECT: Analysis of Spring Runoff Samples
FROM: John Austin \IC\
Chemist //
'TV
i--~^'w
TO: T. 0. Munson, Ph.D._
Chief, Organic Analysis Unit .
Samples were analyzed for organochlorine pesticides, organophosphorous
pesticides, organic nitrogen herbicides and chlorinated phenoxy acid
herbicides. Analysis of chlorinated phenoxy acid herbicides was per-
formed by the U.S. Geological Survey Central Laboratory, Atlanta, Georgia..
The presence of Atrazine, Siraizine, 2,4-D, 2,4,5-T, Silvex, and PCB's
were found in some or all of/the samples. Compounds specifically analyzed
for are tabulated with their detection limits.
JAustinlad:3752:8/24/78 , '
1 Enclosure • •
EPA F°RM 132°-6 IREV. 3-76)
SI
-------
Lab Ho. Date PCB's
Susquehanna River
at Conowingo, Mel.
73051501 5-15-78 .11
78051601 5-16-73 .08
78051704 5-17-78 .06
Potomac River
at Chain Bridge
78051819 .5-18-78 .13
James River
at #147 Bridge
Richmond, Va.
78051820 5-18-78 .13
N.R. = Not Run
Organophosphorous Pesticides
ug/1
Ethyl Parathion .14
Carbophenothion .39
Ethion .14
Malathipn .26
Mithyl Parathion .14
Ronnel .09 .
Diazianon .06
mm^mj^mmmis^^^mm^m
UfT/l
iHM2M
wmmm
2.4--D . Dichlorprop 2,4.5-T Silvex Atrssine
<,01 <,01 <,01 <.01
.03 <.01 .01- .02
N.R. N.R. N.R. N.R.
..04 'SOI .01 .01
.03 <.01 <.01 .01
. Organochlorine Pesticides
Aldrin
Chlordane
ODD
DDT
Endrin
Heptachlor
Heptachlor Epoxide
Lindane
Toxaphene
alpha -BHC
beta-BHC
Methoxychlor
Mirex
PCB
DDE
.10
1.08
.35
.92
.10
ug/1
.005
.05
.02
.04
.01
.001
.001
.003
.25
.002
.005
.10 • .
.03
.05
.02
ra«a
MS™
^1
Simazine
.05
.25
.09
.47
.06
-------
Chlorinated Phenoxy Acid Herbicides
2,4-D
2,4,5-T
Silvex
Dichlorprop
.01
.01
.01
.01
Organic Nitrogen Herbicides
Linuron
Alachlor
Atrazine
Simazine
Propazine
Cyanazine
Cyprazine
Atraton
Prometon •
Ametryn
Prornetryn
Terbutryn
ug/1
.48
.11
.03
.05
.06
.10
.10
.10
.10
.10
.10
.10
-------
METROPOLITAN WASHINGTON SEWAGE TREATMENT PLANTS
Atrazine Simazine
Lab No.
77071201
77071202
77071203
77071204
77071205
77071206
77071207
77071208
77071209
77082557
Station
S-l
S-2
S-3
S-4
S-5
S-6
S-7
S-8
P-8
Location
Piscataway STP
Arlington STP
Blue Plains STP
Alexandria STP
Westgate STP
Hunting Cr STP
. Dogue Cr STP
Pohick Cr STP
Chain Bridge
Washington, DC
Treated Drinking
Date
7-11-77
7-11-77
7-11-77
7-11-77
7-11-77
7-11-77
7-11-77
7-11-77
7-11-77
8-25-77
yg/1 ppb
.75
-1.21
1.72
1.08
•26
.70
1 . 06
1.39
.92
.29
.30
yg/1 ppb
.38
.54
.55
.52
.28
.10
.19
.52
.49
.18
.19
Wat er
------- |