HomeMy WebLinkAboutMattituck Creek Watershed Analysis 1998Mattituck Creek
Watershed Analysis
for
Town of Southold
Board of Trustees
by
U.S.D.A. Natural Resources Conservation Service
and
Suffolk County Soil and Water Conservation District
November 1998
Mattituck Creek is a very significant coastal resource. It is the only deep water harbor
east of Port Jefferson and provides multiple opportunities for commercial and recreational
use. The creek is well known for its shellfish production but due to excessive levels of
coliform bacteria, the New York State Department of Environmental Conservation has
closed the creek to all shellfish harvesting. There have been seasonal openings in the past
but even that has been discontinued due to the high bacteria levels.
In an effort to improve water quality the Southold Town Trustees contracted with the
U.S.D.A. Natural Resources Conservation Service (N.R.C.S.) and the Suffolk County
Soil and Water Conservation District (S.W.C.D.) to conduct a watershed analysis of the
creek. The Watershed is approximately 1,687 acres in size. Landuse within the
watershed is predominantly agricultural. There are also a significant amount of
residential communities. Table 1 provides a breakdown of the landuse within the
subwatersheds analyzed. The focus of the study was to determine priority areas where
mitigation efforts should concentrate to reduce storm water runoff, a major contributor of
degraded water quality. The analysis was conducted using the storm water runoff model
developed by the U.S.D.A. Natural Resources Conservation Service entitled: Urban
Hydrology for Small Watersheds, Technical Release 55, June 1986, 2nd edition. Peak
flows and total volume ofrunoffwas calculated for different storm intensities (Tables 2
and 6).
Water sampling data collected at 6 of the 8 subwatersheds provided data on fecal
coliform bacteria (Tables 2 and 3). The New York State Department of Environmental
Conservation requires the bacteriological quality of every sampling station exposed to
fecal contamination, to meet one of the following standards as presented in the National
Shellfish Sanitation Program manual:
The total coliform median or geometric mean Most Probable Number (MPN) of
the water does not exceed 70 per 100 mi and not more than 10 percent of the
samples exceed an MPN of 230 per 100 ml for a 5-tube decimal dilution test (or an
MPN of 330 per 100 mi for a 3-tube decimal dilution test).
The total coliform standard need not be applied if it can be shown by detailed
study verified by laboratory findings that the coliforms are not of direct fecal
origin and do not indicate a public health hazard. In addition, the standard may not
be applicable in a situation where an abnormally large number of pathogens might
be present. Consideration must be given to the possible presence of industrial or
agricultural wastes containing an atypical coliform to pathogen ratio. The standard
is based upon typical coliform to pathogen ratios associated with discharge of
domestic sewage after some dilution and die-off in coastal waters.
2
The fecal coliform median or geometric mean MPN of the water does not exceed
14 per 100 ml and not more than 10 percent of the samples exceed an MPN of 43
per 100 ml for a 5-tube decimal dilution test (or an MPN of 49 per 100 ml for a
3-tube decimal dilution test).
The determination that the approved area classification standards are met shall be based
upon a minimum of fifteen (15) samples collected from each station in the approved area.
These stations shall be located adjacent to actual or potential sources of pollution.
Sample collection shall be timed to represent adverse pollution conditions. In remote
shellfish areas, the sampling intensity and frequency shall be at the discretion of the New
York State Department of Environmental Conservation. Of the six sites sampled, three
exceeded the fecal coliform standard (table 3).
Based upon the model results and coliform data collected for each subwatershed, a
prioritized list of subwatersheds was developed with suggestions as to the types of
practices that might be installed to reduce runoff and improve water quality.
Priority Area One
Subwatershed number 2 is the number one priority area and is where mitigation efforts
should concentrate. It is 123 aces in size and the contributing area includes a significant
portion of County Road 48 (6.3 acres). The predominant landuse is cultivated
agricultural land (67 acres).
It is the only subwatershed where there was substantial nmoff generated by a 1 inch
rainfall in 24 hours. Although the fecal coliform loading rates are higher in subwatershed
number 8 for a 2.7 inch and 3.5 inch storm, subwatershed number 2 is having a
significant impact on bacteria loading under all storm conditions.
Mitigation efforts within this subwatershed should include measures to reduce runoff and
control erosion on cropland. Conservation management plans should be developed with
the landowners to address erosion control, nutrient management, pest management and
runoff reduction. Conservation practices such as chiseling and subsoiling, conservation
crop rotations, contour farming, and cover and green manure crops will help to increase
crop residue in the soil, and reduce erosion and runoff. Field borders and filter strips will
filter runoff before it reaches the creek. Pest management practices could be used to
apply pesticides according to insect thresholds determined through field scouting.
Fertilizers should be applied according to soil test results. Many of these practices are
already being implemented, others are not. Providing cost sharing assistance to
implement these conservation measures will provide an added incentive for participation.
3
Grants may be applied for through the Environmental Protection Fund with sponsorship
from the Suffolk County Soil and Water Conservation District.
A portion of County Road 48 falls within this subwatershed. It is conveyed through
storm drains and culverts and collects in a deep swale on the south side of the road north
of the railroad tracks and a swale within the median of the east and west lanes. The
swales are connected via a culvert pipe and a drop structure, located in the median, which
outlets into a meadow on the north side of the road. The County of Suffolk controls a
drainage easement in this area located at section 107 block 19 lot 2.1. The two swales
could be used as retention areas simply by raising the inlet elevations of the drop structure
and the culvert pipe connecting the two swales.
Priority Area Two
Subwatershed number 8 ranked second and is located along the Oregon Road corridor. It
outlets into Long Creek. It is by far the largest of all the subwatersheds. The contributing
area is 664 acres and the predominant landuse is intensive agricultural production (367
acres, 55 percent) including potatoes, eom and other mixed vegetables. The total volume
of runoff and fecal coliform loading rates are the highest for the 2.7 inch and 3.5 inch
storms occuring over a 24 hour period. There are four areas where conservation practices
might be installed to reduce the volume and rate of runoff entering Long Creek.
The first location falls within the easement area between lots 1 and 2 of section 100 block
5. A dam could be constructed across the drainageway with a water control structure to
detain and slowly release the accumulated nmoff at a rate that will allow for sediment
settling and bacteria reduction.
The second site is located within the triangular piece of property located at section 100
block 5 lot 1. Although this is a relatively small area, it could be used as a sediment
retention and recharge basin. Due to the relatively small size of this area, the basin would
have to be designed to allow runoffto pass through during intense storms. Its major
function would be to reduce sediment and runoff during low flow storm conditions.
The third site is located within the drainageway of section 100 block 2 lot 4. A dam
similar to site 1 could be constructed to detain and treat runoff. Since sites 2 and 3 are on
private property, easements would have to be obtained before proceeding with any of this
work.
4
The fourth area where measures could be implemented is within the cropland. These
fields could be treated in much in the same way as in priority area number 1. If cost share
assistance is provided, there is a much greater chance of obtaining farmer participation.
Priority Area Three
Subwatershed number 3 is ranked number 3. This watershed is 69 acres in size and
includes the majority of County Road 48. There are 16.5 acres of impervious areas in this
watershed.
A large natural depression exists on the south side of Route 48 directly south of Shirley
Road, section 122 block 1 lot 2.2. If an easement could be obtained, this depression could
accept a significant amount of the runoff generated and conveyed by County Road 48.
Priority Area Four
Priority area number 4 includes subwatershed number 7. This watershed is only 21 acres
in size with the predominant landuse being pasture/grassland (13.8 acres). The slopes are
relatively steep averaging 6 percent or more along the flow path of Mill Road.
In terms of implementation of best management practices, there are very few choices.
Installation of catch basins along Mill Road would help reduce runoff by percolating it
into the ground. A more cost effective method would be to install infiltration chambers to
act as storage and infiltration sites (see attachments). These units consist of high
density polyethylene chambers designed to store runoff underground. The chambers have
an open bottom and permeable sides to promote infiltration. They can be linked together
to increase capacity and are designed to replace traditional catch basins. They are cost
effective, easy to install and provide effective treatment where pollutants are removed by
adsorption, straining or decomposition by bacteria in the soil.
Priority Area Five and Six
Watersheds 5 and 4 are ranked 5th and 6th, respectively. Although they are very similar
in peak discharge estimates, the total volume of nmoff and coliform bacteria loading rate
is much higher within subwatershed number 5, even though it is much smaller in land
area, 23.8 acres as compared to 77 acres for subwatershed number 4. In terms of
mitigation measures, the wetland areas in both watersheds could possibly be used to
retain runoff by installing a water control structure on the outlet culverts at Westphalia
Avenue and Cox's Neck Road. Both sites would require detailed engineering surveys and
designs to ensure that adjacent properties are not flooded. The necessary easements
would also have to be obtained.
Remaining Subwatersheds
Subwatersheds 1 and 6 were not ranked because the Town Engineering Department has
already designed and installed remediation measures at both sites. There is also no
corresponding water quality sampling data for these sites.
Mitigation measures for subwatershed number 1 included the installation of two 8 ft.
diameter by 6 ft. deep concrete leaching pools at the end of Knollwood Drive. If
additional work is needed at this site, the infiltration chambers described earlier would be
an excellent alternative. A major advantage to these units is that they can be installed in
high water table conditions such as this. With as little as 12 to 18 inches of properly
compacted backfill, the chambers are designed to withstand loads of up to 32,000 pounds
per axle.
The Town Engineering Department designed and installed a series of 8 fi. diameter by 8
ft. deep interconnected leaching pools with an outfall pipe for high flow conditions for
subwatershed number 6. A total of 8 of these units were installed. If this measure is not
adequate to handle the average storm flow conditions, a series of infiltration chambers
could be added to increase the capacity.
Subwatershed number 9 was added to the list because of the large land area it
encompasses. There are 118 acres in this watershed with a large agricultural landuse
component. It received the lowest ranking, however, because the runoff seldom if ever
flows over Cox's Neck Road. There is no culvert under the road and there is a 7.9 fL
elevation difference between the road shoulder and the lowest point in the drainage basin.
There is also a house directly north of the basin that would receive 2 feet of water in the
basement if the runoff topped Cox's Neck Road. There is no indication that the house is
flooded on a regular basis.
The final step of the project will be for the Town to select one of the high priority
subwatersheds where best management practices are needed and feasible. The USDA
Natural Resources Conservation Service and Suffolk County Soil and Water
Conservation District staffs will complete the necessary engineering survey and design
work and supervise the installation of one best management practice within the
subwatershed selected.
LAN ::)USE OHI RAOTERIZA'I'ION
SUBWA'I ERSHED
Subwatershed Residential Pavement Row Crops Pasture & Hayland Woodland Brush i Total
Number i ! 5.3 j Meadow
5.3
2 2_1_.9 '11 67.3 !8.1 4.9 123.2
4 27.2 . 4.4 2.9 32.5 9.8 76.8
5 13 4 1.4 5.4 23.8
6 11.2 ~ 7.4 - 1~).6
7 1.2 3.5 13.8 2,9 21.4
8~ 93.9i 22.5~ 366.9 41.9 79.8 58.9 663.9
~ ~ 10.51 2.7 31.7 71.7 1.6 1~
TABLE 2
FECAL CC
BY
~LIFORM LO~
SUBWATER
~,DING RAT
SHEDS
ES
SUBWATERSHED
WATERSHED MEAN FECAL RAINFALL
VOL, FECAL
SAMPLING SIZE ACRES COLIFORM LEVEL DF RUNOFF COLIFORM
*MPN/100ml GALLONS LOADING
RATE-MPN
1
3
4
5
6
7
*MPN = MOST PRC
6.2
6.1
6.3
7.1
5.3
123.2
69.4
76.8
23.8
19.6
4.1 21.4
24
34
12
14
10
1.0 33,452 3.02
1.94x10
3
2.7 2,140,912
3.5 3,746,597
1.0 0.0
2.7 716,063
3.5 1,413,282
1.0 0.0
2.7 0.0
3.5 145,971
1.0 0.0
2.7 32,311
3.5 129,245
1.0 0.0
2.7 151,076
3.5 331,205
1.0 0.0
2.7 7,390,856
3.5 14,421,183
9~21x10_
1.82x10~
0.0
6.85x107
0.0
5.72x107
1.25x108
0.0
3.63x109
3
6
5
4
8 8 663.9 13 7.09x109
'BABLE NUMBER
iTABLE 3
MATTIIUCK ;REEl
i FECAL CQLIFOF:M DAtA
MP ooml
SUBWATERSHED # 1 2 3 4
i 5 6 7 8
SAMPLING STATI( ** 6.2 6.1 6.3 7.1 ** 4.1 8
01/17/95 4 9
02/02/95
03/28/95
10/19/95
11/20/95
12/01/95
01/02/96
03/05/96
03/15/96
04/15/96
11/19~96
12/04/96i ~
12/12/96'
01/02/97
02/04/97
03~03~97
03126197
, 04/03/97
04130197
11110/97 93 93
~ 11/19/97 <3 <3
12/02/97
12/14/97
01/07/98 9 ~ 93
I 02/09/98 <3 I 4
i 02/22/g8 -23 7
I 03/24/98 98 I 4
~OTAL 144 I 204
[MiA
N 24 ~34
~READINGS OF <3, U D 3 TO CALCULATE MF_.~
~* ~O~LING STATION AS[ OCIATED WITH
*<3
<3
23
23
4
7
<3
3
<3
23
9
23
9
<3
<3
4
<3
4
9 43
9 4
9
23
<3
21
4
72 375
12 14
23
<3
<3
I <3
<3
4
15
9
4
23
<3 ~
<3
<3
9
93
9
23
4 23
4 23
4 ~
<3 '
9 21
<3 <3
<3
<3
279
10
UBWATE RSHED.
4
78
13
TABLE 4
fattituck
~let *
MATTITUCK CREEK
SAMPLING STATIONS
Property
Shore
Acre~,
S
TABLE 5
MATTIT~
WATERSHED#
JCK CREEK SUBWATER,~
;HED
LOCATION KEY
TOPOGRAPHIC BOUNDARY COLOR
MAP COVERAGE
BB-33, BB-34
YELLOW
2 AA-33, BB-34 GREEN
3 AA-33, AA-34 LIGHT BLUE
4 AA-33 TERRA COTTA
5
AA-32, AA-33, BB-32, BB-33
BB-33
6
ROSE
BLACK
7 BB-33 VERMILLION _
8 AA-34, BB-33, BB-34, CC-34 VIOLET
9 AA-33 TUSCAN RED "
AA-32, AA-33, AA-34, BB-32, BB-33,
OUTER BOUNDARY OF ENTIRE WATERSHED BB-34, CC33, CC34 FLORESCENT GREEN
Table 6
Project :
County :
Subtitle:
Data:
~RAPHICAL P~AK DISCHARGE METHOD
Mattituck Creek Watershed
SUFFOLK State: NY
Subwatershed #1, Knollwood Lane
Drainage Area :
Runoff Curve Nu~ber :
Time of Concentration:
Rainfall Type :
Pond and Swamp Area :
5.3 * Acres
63 *
0.79 * Hours
III
NONE
User: ASC
Checked:
V~rnion 2.00
Date: 03-20-98
Date:
Storm Number 1 2
Frequency (yrs)
24-Hr Rainfall (in)
Ia/P Ratio
Runoff (in)
Unit Peak Discharge
(cfs/acre/in)
Pond and Swamp Factor
0.0% Ponds Used
1 2
2.7 3.5
0.44 0.34
0.31 0.66
).319 0.408
1.00 1.00
3
5
4.5
0.26
1.20
0.454
1.00
4
10
5
0.23
1.51
0.465
1.00
5
0.20
2.18
0.482
1.00
6
50
0.17
2.90
0.494
1.00
Peak Discharge (cfs) 1 1 3 4 6 8
7
7.5
0.16
3.28
).499
1.00
9
* - Value(s) provided from TR-55 system routines
GRAPHICAL PEAK DISCHARGE METHOD Version 2.00
Table 6
Project :
county :
Subtitle:
Mattituck Creek Watershed User: ASC Date:
SUFFOLK State: NY Checked: __ Date:
Subwatershed #2, Sampling Site - Culvert at Wickham Ave
Data:
Drainage Area :
Runoff Curve Number :
Time of Concentration:
Rainfall Type :
Pond and Swamp Area :
123.2 * Acres
72 *
1.31 * Hours
III
03-20-98
Storm Number 1 2 3 4 5 6 7
Frequency (yrs) 1 2 5 10 25 50 100
24-Hr Rainfall (in) 2.7 3.5 4.5 5 6 7 7.5
Ia/P Ratio 0.29 0.22 0.17 0.16 0.13 0.11 0.10
Runoff (in) 0.64 1.12 1.82 2.20 2.99 3.83 4.26
Unit Peak Discharge 0.341 0.362 0.378 0.384 0.392 0.398 0.400
(cfs/acre/in)
Pond and Swamp Factor 0.72 0.72 0.72 0.72 0.72 0.72 0.72
5.0% Ponds Used
Peak Discharge (cfs) 19 36 61 75 104 135 151
* - Value(s) provided from TR-55 system routines
Table 6
Project :
County :
Subtitle:
Data:
GRAPHICAL PEAK DISCHAR~ METHOD
Mattituck Creek Watershed User: ASC
SUFFOLK State: NY Checked:
Subwatershed #3, Intersection Route 48 and Westphalia Avenue
Drainage Area :
Runoff Curve Number :
Time of Concentration:
Rainfall Type :
Pond and Swamp Area :
69.4 * Acres
65 *
0.91 * Hours
III
NONE
Version 2.00
Date: 11-24-98
Date:
Storm Number 1 2 3
Frequency (yrs) 1 2 5
24-Hr Rainfall (in)
Ia/P Ratio
Runoff (in)
Unit Peak Discharge
(cfs/acre/in)
Pond and Swamp Factor
0.0% Ponds Used
Peak Discharge (cfs)
2.7
0.40
0.38
0.332
1.00
3.5 4.5
0.31 0.24
0.75 1.33
0.402 0.432
1.00 1.00
9 21 40
4 5 , 6 . 7
lO 25 50 100 I
5
0.22
1.65
0.442
1.00
6
0.18
2.35
0.456
1.00
7 7.5
0.15 0.14
3.10 3.49
0.466 0.470
1.00 1.00
51 74 100 114
* - Value(s) provided from TR-55 system routines
GRAPHICAL PEAK DISCHARGE METHOD
Table 6
Project : Mattituck Creek Watershed User: ASC
County : SUFFOLK State: NY Checked:
Subtitle: Subwstershed # 4, Culvert Pipe at Westphalia Ave
Data:
Drainage Area :
Runoff Curve Number :
Time of Concentration:
Rainfall Type :
Pond and Swamp Area :
76.8 * Acres
44 *
0.82 * Hours
III
Version 2.00
Date: 03-23-98
Date:
Storm Number 1
Frequency (yrs) 1
24-Hr Rainfall (in) 2.7
Ia/P Ratio 0.94
Used 0.50
Runoff (in) 0.00
Unit Peak Discharge 0.253
(cfs/acre/in)
Pond and Swamp Factor 0.72
5.0% Ponds Used
2
2
3.5
0.73
0.50
0.07
0.253
0.72
3
5
4.5
0.57
0.50
0.26
0.253
0.72
4
10
5
0.51
0.50
0.40
0.253
0.72
5
25
6
0.42
0.42
0.74
0.324
0.72
6 7
50 100
7 7.5
0.36 0.34
0.36 0.34
1.15 1.39
0.378 0.398
0.72 0.72
Peak Discharge (cfs) 0 1 4 6 13 24 31
* - Value(s) provided from TR-55 system routines
Table 6 GRAPHICAL PEAK DISCHARGE METHOD Version 2.00
Project :
County :
Subtitle:
Mattituck Creek User: TJM
Suffolk State: NY Checked:
Subwatershed 5- Breakwater/Cox Neck Lane(revised)
Date: 04-06-98
Date:
Data:
Drainage Area : 23.8 Acres
Runoff Curve Number : 50
Time of Concentration: 0.94 Hours
Rainfall Type : III
Pond and Swamp Area : NONE
Storm Number 1 2 3 4 5 6 7
Frequency (yrs) 1 2 5 10 25 50 100
24-Hr Rainfall (in) 2.7 3.5 4.5 5 6 7 7.5
Ia/P Ratio 0.74 0.57 0.44 0.40 0.33 0.29 0.27
Used 0.50 0.50 0.44 0.40 0.33 0.29 0.27
Runoff (in) 0.05 0.20 0.50 0.69 1.14 1.67 1.95
Unit Peak Discharge 0.241 0.241 0.289 0.326 0.377 0.407 0.415
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00
0.0% Ponds Used
Peak Discharge (cfs) 0 1 3 5 10 16 19
Table 6
GRAPHICAL PEAK DISCHARGE METHOD
Version 2.00
Project :
County :
Subtitle:
Mattttuck Creek Watershed
SUFFOLK State: NY
Subwatershed #6, Bayview Ave
User: ASC
Checked:
Date: 11-03-98
Date:
Data:
Drainage Area :
Runoff Curve Number :
Time of Concentration:
Rainfall Type :
Pond and Swamp Area :
19.6 * Acres
46 *
0.70 * Hours
III
NONE
Storm Number 1
Frequency (yrs) 1
24-Hr Rainfall (in) 2.7
Ia/P Ratio 0.87
Used 0.50
Runoff (in) 0.01
Unit Peak Discharge 0.267
(cfs/acre/in)
Pond and Swamp Facto! 1.00
0.0% Ponds Used
Peak Discharge (cfs) 0
2 3
2 5
3.5 4.5
0.67 0.52
0.50 0.50
0.10 0.33
0. 267 0. 267
1.00 1.00
1 2
4
10
5
0.47
0.47
0.49
0. 299
1.00
3
25 50
6 7
0.39 0.34
0.39 0.34
0.87 1.32
0.380 0.432
1.00 1.00
6 11
7
100
7.5
0.31
0.31
1.57
0.452
1.00
14
* - Value(s) provided from TR-55 system routines
GRAPHICAL PEAK DISCHARGE METHOD Version 2.00
Table 6
Project : Mattituck Creek Watershed
County : SUFFOLK State: NY
Subtitle: Subwatershed #7 Old Mill Lane
User:
Checked:
ASC
Date: 11-03-98
Date:
Data:
Drainage Area :
Runoff Curve Number :
Time of Concentration:
Rainfall Type :
Pond and Swamp Area :
21.4 * Acres
61 *
0.16 * Hours
III
NONE
Storm Nu~er 1 2 3 4 5 6 7
Frequency (yrs) 1 2 5 10 25 50 100
24-Hr Rainfall (in) 2.7 3.5 4.5 5 6 7 7.5
Ia/P Ratio 0.47 0.37 0.28 0.26 0.21 0.18 0.17
Runoff (in) 0.26 0.57 1.08 1.37 2.01 2.70 3.07
Unit Peak Discharge 0.453 0.706 0.829 0.846 0.870 0.888 0.895
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00
0.0% Ponds Used
Peak Discharge (cfs) 3 9 19 25 37 51 59
* - Value(s) provided from TR-55 system routines
Table 6
GRAPHICAL PEAK DISCHARGE METHOD
Version 2.00
Project :
County :
Subtitle:
Mattituck Creek Watershed
SUFFOLK State: NY
Subwatershed #8 Grand Ave Bridge
Data: Drainage Area : 663.9 * Acres
Runoff Curve Number : 66 *
Time of Concentration: 1.02 * Hours
Rainfall Type : III
Pond and Swamp Area : NONE
User: ASC
Checked:
Date: 11-05-98
Date:
Storm Humber
Frequency (yrs)
24-Hr Rainfall (in)
Ia/P Ratio
Runoff (in)
Unit Peak Discharge
(cfs/acre/in)
Pond and Swamp Factor
0.0% Ponds Used
1
1
2.7
0.38
0.41
0.327
1.00
2
2
3.5
0.29
0.80
0.387
1.00
3
5
4.5
0.23
1.40
0.412
1.00
4
10
§
0.21
1.73
0.420
1.00
5
25
6
0.17
2.44
0.433
1.00
6
50
7
0.15
3.20
0.442
1.00
?
100
7.§
0.14
3.60
0.446
1.00
* - Value(s) provided from TR-55 system routines
GRAPHICAL PEAK DISCHARGE METHOD
Version 2.00
Table 6
Project :
County :
Subtitle:
Mattituck Creek Watershed
SUFFOLK State: NY
Subwatershed #9 Cox Neck Lane
User: ASC
Checked:
Date: 11-03-98
Date:
Data:
Drainage Area :
Runoff Curve Number :
Time of Concentration:
Rainfall Type :
Pond and Swamp Area :
118.2 * Acres
64 *
2.33 * Hours
III
NONE
Storm Number 1 2
Frequency (yrs) 1 2
24-Hr Rainfall (in) 2.7 3.5
Ia/P Ratio 0.42 0.32
Runoff (in) 0.34 0.71
Unit Peak Discharge 0.201 0.234
(els~acre~in)
Pond and Swamp Factor 1.00
0.0% Ponds Used
Peak Discharge (cfs) 8
5 10
4.5 5
0.25 0.23
1.27 1.58
0.253 0.258
20 38 48
5
25
6
0.19
2.26
0.266
1.00 1.00
71 96
6 7
50 100
7 7.5
0.16 0.15
3.00 3.39
0.271 0.274
1.00
110
* - Value(s) provided from TR-55 system routines
SUFFOLK
COUNTY,
NEW YORK -- SHEET NUMBER 16
2 400 00(} FEET
SUFFOLK
COUNTY,
NEW YORK -- SHEET
NUMBER 17
JUI)ITH T. TEI~RY
TOWN CLERK
REGISTRAR OF VITAL STATISTICS
MARRIAGE OFFICER
RECORDS MANAGEMENT OFFICER
FREEDOM OF INFORMATION OFFICER
Town Hall, 53095 Main Road
P.O. Box 1179
Southold, New York 11971
Fax (516) 765-1823
Telephone (516) 765-1800
OFFICE OF THE TOWN CLERK
TOWN OF SOUTHOLD
THIS IS TO CERTIFY THAT THE FOLLOWING RESOLUTION WAS ADOPTED BY THE
SOUTHOLD TOWN BOARD AT A REGULAR MEETING HELD ON OCTOBER lq, 1997:
resolved that the Town Board of the Town of Southold hereby authorizes
and directs Supervisor Jean W. Cochran to execute the Cooperative
Agreement between the Town of Southold and the United States Department
of Agriculture Natural Resources Conservation Service and the County of
Suffolk Soil and Water Conservation District to assist the Southold Town
Trustees in Conducting a detailed watershed analysis of Mattituck Creek.
Southold Town Clerk
October 15, 1997
COOPERATIVE AGTa ~a~IENT
THE TOWN OF SUU'-'uOLD
AND ~
'rUE UNITED STATES DEPARTMENT OF A~RIcU~.T~]~E
NATURAL RESOURCES CONS~IVATION SERVICE
(Formerly Soil Conservation Service)
AND
SUFFOLK COUNTY SOIL AND WA','~K CONSERVATION DISTRICT
The agreement is entered into this 14th day of
October , 1997, by and between The Town of Southold,
Suffolk County Soil and Water Conservation District (herein
referred to as "District") and the United States of America,
acting by and through the Natural Resources Conservation Service,
United States Department of Agriculture (hereafter referred to as
"NRCS").
The purpose of this agreement is for NRCS and the D~strict to
assist the Town Trustees in conducting a detailed watershed
analysis of Mattituck Creek and to accelerate the planning, and
installation of various retention type structures to control
storm water runoff from entering Mattituck Creek a tributary to
Long Island Sound. The National Estuary study for Long .Island
Sound identified storm water runoff as a major source of total
fecal coliform and nitrogen entering the estuary system. These
practices will help retain runoff, remove sediment, and coliform
bacteria thereby reducing pollution and protecting the Estuary.
NRCS agrees to participate in this agreement under the authority
of the Soil Conservation and Domestic Allotment Act, as amended
(16 U. S. C. 590 a--f).
III. ERCS and the Distri%~; A~Rm~;
A. To delineate onto topographic maps the entire watershed for
Mattituck Creek and all subwatersheds that have identifiable
outlets onto topographic maps entitled TODoaraDhic MaPS F~ve
Eastern Towns Suffolk County Ny, by Lockwood, Kessler, and
Bartlett, Inc. 1974--1975,
B. Delineate the hydrologic soil groups within the total water-
shed.
C. Determine the land use and land cover for the total watershed.
D. Conduct hydrologic calculations to estimate the total and peak
flows of storm water suFface runoff from each subwatershed.
E. In consultation with the Trustees, select one key
subwatershed and identify site specific best management practices
BMP's) to reduce and treat storm water runoff and sedimentation.
F. Survey, design, and supervise the installation of one BMP
within the subwatershed selected.
G. Prepare a report that describes the watershed in detail,
including a prioritized list of subwatershed areas based upon
water sampling data and potential solutions within each
subwatershed.
H. Prepare reports, maps, and designs as needed.
I. That a maximum of $25,000.00 will be used to provide the
technical assistance in items AG.
IV. TO~N OF SO~THOLD A~:
A. To transfer up to a maximum of $25,000.00 in water quality
funding to NRCS and the SWCD for technical assistance provided
for this project. Requests for payment will be made using Town
of Southold Standard Vouchers.
Forward funds to: USDA Natural Resources Conservation Service
Financial Management Division
The Galleries of Syracuse
441 S. Salina Street
Suite 354, 5th Floor
Syracuse, New York 13202--2450
or
Suffolk County SWCD
Riverhead County Center, Room E--16
Riverhead, New York 11901
C. Partial payments may be made upon completion of an item of
work.
V. IT IS ~FIqIAT.T.y Af~I~RT~;
A. The total amount of assistance under this agreement shall not
exceed $25,000.00
B. This agreement shall be effective on the date appearing in
the first paragraph and shall continue in effect through
September 30,1999. It may be renewed for subsequent fiscal years
by an exchange of correspondence between the parties hereto.
C. This agreement may be terminated by either party hereto by
written notice to the other party at least 30 days in advance of
the effective date of the termination.
D. That it is the intent of NRCS to fulfill its obligations
under this agreement. However, commitments cannot be made beyond
the period for which funds have been appropriated by law and
administratively made available. In the event funds from which
NRCS may fulfill its obligations are not appropriated, the
agreement will automatically terminate. Reimbursement will then
be for work completed that is otherwise eligible for
reimbursement prior to the effective date of termination.
E. That no member of or delegate to Congress or Resident
Commissioner shall be admitted to any share or part of this
agreement, or to any benefit that may arise there from; but this
provision shall not be construed to extend to this agreement if
made with a corporation for its general benefit.
F. Comply with all of the provisions of Office of Management and
Budget Circular A--87 and audit guidelines of Circular A-128, both
of which may be amended form time to time which are herein
incorporated by reference. Copies of both of these documents may
be provided to the Association By NRCS upon request.
G. Comply with the non--discrimination provisions of Title VI and
VII of the Civil Rights Act of 1964 as amended, the Civil Rights
Restoration Act of 1987 (Public law 100--259) and other non-
discrimination statutes; namely, Section 504 of the
Rehabilitation Act of 1973, Title IX of the Education Amendments
of 1972, and the Age Discrimination Act of 1975, and in
accordance with the regulations of the Secretary of Agriculture
(7 CFR--15, Subparts A & B) , which provide that no person in the
United ~States shall, on the grounds, of race, color, national
origin, age, sex, religion, marital status, or
handicap/disability be excluded from participation in, be denied
the benefits of, or be otherwise subjected to discrimination
under any program or activity receiving Federal financial and/or
technical assistance form the Department of Agriculture or any
agency thereof.
H. Give NRCS or the Comptroller General, through any authorized
representative, access to and the right to examine all records,
books, papers, or documents related to this agreement.
I. Ail activities under this agreement will be in compliance
with the Drug Free Work Place Act of 1988 (Public Law 100--690,
Title V, Subtitle D).
TOWN OF SOUTHOLD
TITLE: Supervisor
DATE: October 14, 1997
USDA, NATURAL RESOURCES
CONSERVA_TIgN SERV~CE~
TITLE:
OATE: 9- Z- 7
SUFFOLK COUNTY SOIL AND WATER
CONSERVATION DISTRICT
(~
OATE: q'D-97
United'States
~D ~P'~";~i~;met ° f ~ USDA
-----I I
300 Center Drive, Room N-210
Riverhead County Center
Riverhead, New York ! 1901
Natural Resources
Conservation Service
TO:
Town of Southold
Board of Trustees
FROM:
Allan S. Connell, District Conservationist
Natural Resources Conservation Service
DATE: December 14, 1998
SUBJECT: Mattituck Creek Watershed Analysis invoice for services rendered
Time spent in developing the Watershed Analysis for Mattituck Creek including field
work, subwatershed runoff calculations and developing report:
208 hours ~ $40.00/hr = $8,320.00
Please note on page 2, Section VI. B of the Cooperative Agreement (see attached copy)
that funds be forwarded to the USDA Natural Resources Conservation Service, Financial
Management Division, The Galleries of Syracuse, 441 S. Salina Street, Suite 354, Fifth
Floor, Syracuse, NY 12302-2450.
New York State Department of Environmental Conserv
205 N Belle Mead Rd STE 1, East Setauket, New York 11733-340(
Division of Fish, Wildlife & Marine Resources (516) 444-0430
SE? - 9 997
TOWN OF SOUTHOI
PERMIT TO TRANSPLANT SHELLFISH
FROM AN UNCERTIFIED AREA
Permit No. 97-TR-13
Joh~ P. C~hill
Commissioner
Pursuant to the provisions of Sections 13-0319 and 13-0321 of the Environmental
Conservation Law, permission is hereby granted to the Town of Southold, Town Hall, Main
Road, Southold, New York, to transplant shellfish from an uncertified area, under the following
conditions:
The species of shellfish to be harvested and relayed pursuant hereto shall be hard
clams (Mereenaria mereenaria) only.
The uncertified areas from which hard clams shall be harvested pursuant hereto are
located in Long Creek, Hashamomuck Pond and Narrow River, Hallocks Bay,
Southold.
All shellfish harvested pursuant hereto shall, on the same day as harvest, be loaded
onto Town truck(s) and delivered to the following relay areas:
A. Seasonally uncertified waters of Goose Creek;
B. Seasonally uncertified waters of Town Creek/Jockey Creek; and
C. Certified waters of Corey Creek.
The relay cleansing area in Corey Creek shall be reclassified as "Uncertified" and
therefore, "Closed to the taking of Shellfish" during the period September 15,
1997 through October 10, 1997 pursuant to the provisions of 4~.4, 6NYCRR.
The relay cleansing area in Corey Creek shall be marked and posted as an
"Uncertified Area" which is closed to shell_fishing during the closure period
identified above.
Harvesting activities shall be undertaken by town baymen using hand rakes and
tongs by no more than twenty-five individual vessels. All harvesting and relaying
activities hereby permitted shall be directly supervised by Southold Town Bay
Constables.
This permit is issued for hard clam transplant activities to be undertaken between
the dates of September 15 and September 19, 1997.
The Town's Bay Constables shall maintain a list identifying all baymen
participating in the involved transplant and shall submit this list, accompanied by a
description of the resulting transplant activities, to the Department of
Environmental Conservation immediately following the transplant hereby
permitted; included in this report shall be:
- the dates of transplant activi;ies;
- the names and permit numbers of participating baymen;
- identification of harvest areas where harvest was undertaken;
- the number of bushels of hard clams transplanted to each relay area.
The Department of Environmental Conservation reserves the right to directly
supervise the activities hereby permitted.
This permit is issued subject to a reserved right of SUMMARY SUSPENSION and/or
REVOCATION whenever such SUSPENSION or REVOCATION is deemed prudent or
necessary by the Department of Environmental Conservation in carrying out the purposes of the
Environmental Conservation Law or the Rules and Regulations promulgated thereunder,
whenever in the judgement of the Department the Permittee shall have violated any term or
condition of this Permit or whenever the Permittee shall have violated any provision of the
Environmental Conservation Law or the Rules and Regulations promulgated thereunder.
Debra A. Barnes
Marine Resources Specialist
DATED: September 5, 1997
cc: Law Enforcement - Region I
Maureen Davidson, Shellfisheries
New York State Department of Environmental Conserw
206 N Belle Mead Rd STE 1, East Setauket, New York 11733-3401
Division of Fish, Wildlife & Marine Resources (516) 444-0430
September 8, 1997
John P. Cahill
Commissioner
Mr. John Holzapfel
Town Trustee
Town of Southold
P.O. Box 1179
53095 Main Road
Southold, New York 11971
RE: Shellfish Transplant Permit No. 97-TR-13
Dear Mr. Holzapfel:
Enclosed is Shellfish Transplant Permit No. 97-TR-13 which approves the town's request
to conduct a hard clam transplant from the uncertified areas of Long Creek, Hashamomuck Pond
and Narrow River, Hallocks Bay during the period September 15 through September 19, 1997.
In order to transplant shellfish into the certified waters of Corey Creek, the relay cleansing area
will be required to be designated as an "uncertified area" by the Department of Environmental
Conservation. The Town is responsible for providing appropriate notification to all commercial
shellfish harvesters in the town to advise them of this temporary designation. According to
Condition No. 5 of your shellfish transplant permit, the Town is also required to mark and post
this area as an "uncertified area" which is closed to shelltishing through O~ober 10, 1997.
Best of luck with your transplant activities, ffyou have any questions on the permit,
please feel free to contact me at (516) 444-0483.
Debra A. Barnes
Marine Resources Specialist
Enclosures
93
NEW YORK .STATE DEPARTMENT OF ENVIRONMENTAL CONSERV'ATION
APPLICATION FOR PERMIT TO HARVEST AND Pt~LAY PROM UNC~RTIFIED ARF~ FOR TRANSPLANTING
P~BLIC TRANSPLANT
REFER TO INS~CTION SF~T B~w COM~i~~ ~_~ ~PLICATI~,~I
Pursuant to the provision~ of SectOrs 1~-0319 and 13-0321 Of the New'York
State Environmental Conservation La~, application is hereby made by the
undersigned for a Permit to Harvest and Relay Shellfish from Uncertified
Areas within or without the State.
Applicant
Address
TOWN OF SOUTHOLD ~
Municipality or Political Subdivision
TOWN ..HALL~ MAIN ~OAJ~,'.SOUTHOLD, NY 11971
Type (species) of shellfish to be transplanted:,,
MERCENARIA MERCENARIA
Scientific Name (if known)
.HARD CLAM
Common Name
3. The specific area or areas from which shellfish shall be removed:A~.~HA_
MOMOQUE POND (Lon~ Creek) & NARRow RIVE% lying within the j~risdiction
ROAD AREA Local Body of Water IN HALLOCKS BAY '
or ownership of TOWN OF SOUTHOLD. NY
State/Municipality
The time period during which the proposed activity shall take place:
SEPT. 15~ 1997 and conclude on SEPT. }9. 1997
Commencement Date .
Subject to department approval, municipalkties or political subdivisions
~ respo.nsibl, for th, coord.ination and supervision of all harvesting
relayLng activities assoclated with the proposed project.
Please
specify the name of the per.son(s) (e.g., bay constabl.e, harbormaster, .
agency) who will be responsible for the direct supervision of harvesting
and relaying activities ' DON DZF, NKOWSKI. SR. BAY C, ON.~TARLF. A~D ~T~FR
· TOWN REPRESENTATIVE
/-' 6. Manner or Method that shall be used for the removal of shellfish:
HAND HARVESTING
7. Removal of shellfish by vessels employing mechanica]?"~ear shall be
undertaken by the vessel(s) known as: ~L.
1. owned by:
Name of Vessel
Name of Owner
and operated by:
of
Address
Name of Vessel Operator
Name of Vessel
Name of Owner
and operated by:
owned by:
of
Address
Name of Vessel operator
OR
XX
Shellfish shall be hand harvested by no more than 100 in.dependent
baymen using no more than 50 privately owned/Operated vessels on
any given day.
a) Shellfish shall be transported by the vesseI~s)
known am
to the designated relay area.
At.'the end of each harvesting day, all shellfish harvested shall be
brought ashore at a point of landing known as SOUTHOLD TOWN RAMP
ON NARROW RIVER ROAD AND SOUTHOLD TOWN RAMP ON GROVE ROAD -
SOUTHOLD.
¢)
d)
Shellfish shall then be loaded aboard truck(s) owned by:
TOWN OF SOUTHOLD of TOWN HALL. SOUTHOLD. NY
Name of Owner Address
· The ~ shall be responsible
for all activities undertaken by the operator(s)..ef said truc~(s)
in connection with the land transportation of shellfish to the
designated relay area.
If the transportation vehicle is controlled by a private interest,
please specify the following:
License Plate Number:
Year, Make, Model:
All sheIlfish loaded aboard the above mentioned tr~ck(s)shall be
immediately transported to a point of landing known as
See attached landin~ points where they shall be transferred to the
boat(s) Southold Town Bay Constable for
~mmediate relaying to the designated 'relay area known as 1 day in Town' Creek
1 day in Goose Creek and 1 day in Core¥ Creek which shall be closed
to the taking of shellfish during the entire transplant and cleansing
period.
10. Indicate how shellfish will be planted:
Directly on bottom X
Rac~s, ' bags, other
Off-Bottom Culture Permit No.
IIO~R: Please at~ach a' written ~ee-ription ~ map of ~he relay area
indicate per,ouster buoy locations. If other structures (e.g., racks,
hags) are to be used, please provide e description o~ their' ~seign:
&tta=h additional sheets if neeessar~
11. Describe tyl3e and extent of supervision and surveillance of the proposed
relay area: ~ THE SOUTHOLD TOWN BAY CONSTABLES AND THE SOUTHOLD TOWN
POLICE DEPT. WILL MAINTAIN SURVETLLANCE AND SUPERVISION OF THE RELAY
AREA 24 HOURS PER DAY~ THESE AREAS WILL BE CLOSED TO ALL SNv. LLFISHING
ACTIVITIES.
12. It is understood that all harvesting and relayi~ operations shall be
carried out during daylight hours only, and subject to the i~mediate
supervision of Department of Environmental Conservation personnel, or
by personnel of a regulatory auth6rity representing another political
subdivision subject to Departmen~l authorization as it deems necessary.
13.
I have received and read the following: 1) Part 45, Transplanting of
Shellfish Regulations; and, 2) Procedures for obtaining a Permit to
Harvest and Relay Shellfish from Uncertified Areas for Transplanting
P~rposes. I, the applicant, have read, fully u/~derstand and agree to the
provisions specified in this application. I certify that the information
provided in this application is accurate and correct.
· TOWN OF SOUTHOLD
Name of Applicant (Please Print)
JOHN HOLZAPFEL~ TOWN TRUSTEE
Representative of Applicant
s mat e 'of F sntat ve
Title
Date of Application
Date~pplication Reoeived
Deper~ent Representative
-4-
LONG
ISLAND
GOLDSMITH'S
INLET
SOUND
WATERWAYS OF SOUTHOLD TOWN
LONG ISLAND SOUND
PLUM
ISLAND
NEW SUFFOLK
G REA T
F[ANDERS
9.~¥ PECONIC
PEco
ROBINS
ISLAND
LITTLE
PECONIC
BAY
NORTIt SEA
NOYACK
SHELTER
ISLAND
SAG IIARROR
SPRINGS
SCALE
Albert J. gaupski, President
John Holzapfel, Vice President
Jim King
Martin H. Gan'ell
Peter Wenczel
TO:
FROM:
RE:
DATE:
BOARD OF TOWN TRUSTEES
TOWN OF SOUTHOLD
Allan Connell
Southold Town Board of Trustees
Proposal of Water Shed Analysis
September 25, 1997
Town Hail
53095 Main Road
P.O. Box 1179
Southold, New York 11971
Telephone (516) 765-1892
Fax (516) 765-1823
The following action was taken at the Southold Town Board of
Trustees Regular Meeting on September 24, 1997:
RESOL~_D, that the Southold Town Board of Trustees accepted the
proposal of Water Shed Analysis s~h~itted by Allan Cormell of
the Natural Resources Conservation.
cc. John Cushman
Sr. Acct. Clerk