Water Testing Results
Summer 2001

Merrimack and Souhegan Rivers
E-Coli Bacteria in Colonies per 100 ml. of Sample

Water Sampling Dates
Location 6/12/01 6/26/01 7/10/01 7/24/01 8/7/01 8/21/01(*) 9/4/01(**) 9/18/01

Souhegan River Sites
New Ipswich
River Road above Water Loom Pond
520 36 18 60 11 N/A <4 <1
New Ipswich
Highbridge
440 335 N/A 90 79 148 33 <1
Greenville
Above Greenville Mill Pond
550 80 25 80 128 N/A 10 30
Greenville
Downtown Greenville upstream of WWTP
340 >80 98 110 127 390 <4 84
Greenville
Green Bridge below Greenville WWTP
200 27 84 87 108 >800 <4 84
Wilton
Below the Horseshoe
N/A 60 190 N/A 120 160 170 80
Wilton
Downtown
>800 460 N/A 340 >320 >800 2 164
Milford
Pine Valley Mill
N/A 366 230 N/A >800 150 80 20
Milford
Behind Hayward Field
90 180 180 50 280 120 120 80
Milford
American Stage Festival
N/A 350 N/A 100 >800 120 110 20
Milford
Swing Bridge
570 390 230 190 520 170 140 110
Milford
Behind Riverside Cemetery
620 360 200 130 230 220 110 N/A
Milford
Behind Lorden Plaza
500 318 160 140 190 250 180 <10
Milford
Amherst Country Club
680 260 300 120 60 176 <4 <1
Amherst
Conservation land on Fairway Road
610 224 230 170 290 150 180 10
Amherst
Boston Post Road Canoeport
0 360 80 180 400 N/A 510 <10
Merrimack
Indian Ledges, Davidson Road
26 36 33 18 60 12 <1 <1
Merrimack
Turkey Hill Bridge
5 22 N/A 72 104 <1 6 N/A
Merrimack
East Chamberlain Rd.
N/A N/A N/A N/A N/A N/A N/A N/A


Merrimack River Sites

Manchester
Above Amoskeag Dam
43 23 45 18 47 2 <1 <1
Manchester
Arms Park
44 180 409 36 67 8; 4 <1 2
Manchester
Upstream of Piscataquag River
62 152 284 196 93 2 3 2
Litchfield
Goffs Falls
20 <1 469 42 29 <1 <1 <1
Merrimack
Depot Street
N/A N/A N/A N/A N/A 58 5 20
Merrimack
Upstream of Souhegan River
N/A N/A N/A N/A N/A N/A N/A N/A
Merrimack
Thornton's Ferry
450 >80 68 14 28 58 <4 24
Nashua
Greeley Park
140 58 50 8 22 20 <4 <4
Nashua
Taylors Falls Bridge
280 69 46 16 96 33 8 30
Nashua
Sagamore Bridge
520 >80 370 54 240 >800 N/A N/A
Hudson
Sanders Parking Lot
N/A N/A 44 N/A N/A N/A N/A N/A
Tyngsboro
Upstream of Tyngsboro Bridge
330 >80 N/A N/A N/A N/A N/A N/A

Notes:
* Flow on Souhegan was 27 CFS (cubic feet or water per second) and historic average flow for 8/21 is 61 CFS.
   Flow on Merrimack was 739 CFS and historic flow for 8/21 is 1800 CFS.

** Flow on Souhegan was 26 CFS (cubic feet or water per second) and historic average flow for 8/21 is 78 CFS.
    Flow on Merrimack was 637 CFS and historic flow for 8/21 is 1684 CFS.

 


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Last modifed: 9/22/01 10:30 PM

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