HomeMy WebLinkAboutSeptic Repair 00 Niederwerfer Road (4) —i Fc a LalaGan
INVESTIGATION FOR SEWAGE DISPOSAL SYSTEM
OWNER ®vd fv/vt LOCATION
PERCOLATION TESTS: (Record all tests) SOIL MOISTURE:
DATE (high, med, low, etc)
TEST READINGS
HOLE OP
17 HOLE #2 HOLE#3 HOLE #4
Time Reading Time Readin Time Reading Time Readin
TABULATION OF TEST RESULTS
Hole Location Depth Presoak Minimum Percolation Rate
inches) (HHM) ins.iUch
I.
2.
3.
4.
OBSERVATION PITS: (Record all pits) �=Z'" Ground Water Table:
(Date) (Near Max,Below Max)
SOLL DESCRIPTIONS
PTf A — r4-
Z0'4( vYIT B •�d/ PIT C PIT D /L
d_3 T 4-L L
fr,� fwwlyl� fl—kl /oak
ed Ur"-y2LJ -6 !- - Ti1/ 0l/f�v�.,�
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MICHAEL F. GRAGNOLATI
45 North Street
P.O. Box 3127
Windsor Locks,Connecticut 06096-3127
Tel/Fax 860-623-2588
T
February 6, 2002 � itiGttid.
Sands E. Aeschliman 1 ,
Aeschliman Land Survey O G 1
1379 Main Street
East Hartford, Connecticut 06108
RE: Proposed Property of
Giroux Construction
Niederwerfer Road
South Windsor, Connecticut
Dear Mr. Aeschliman:
This letter is to confirm that in January 2002 I examined the above referenced p
cel for the presence of
wetlands and watercourses as defined by Connecticut State Statutes. My investiga ions were conducted
utilizing a spade and auger.
Wetland boundaries were marked with numbered blue flagging in the field to be located by your firm.
Areas delineated on site are associated with an.intermittent stream that is to the west of the property.
Predominate soils within the delineated area are Wilbraham stony silt loams.
Wilbraham stony silt loams are very deep (>65 inches)poorly drained soils that form in firm glacial till.
They are nearly level to gently sloping soils in drainageways and low-lying positions on till covered
uplands. The soils have a water table at or near the surface much of the year.
If you should have any questions,please call this office at your convenience.
Sincerely;
Michael F. Gragnolati
Registered Professional Soil Scientist
02-008
MICHAEL F. GRAGNOLATI
45 North Street
P.O.Box 3127
Windsor Locks,Connecticut 06096-3127
Tel/Fax 860-623-2588
February 7, 2002
Sands E. Aeschliman
Aeschliman Land Survey
1379 Main Street
East Hartford, Connecticut 06108
RE: Proposed Property of
Giroux Construction
Niederwerfer Road
South Windsor, Connecticut
Dear Mr. Aeschliman:
As per your request I visited the above referenced site with the applicant and the South Windsor
Sanitarian to determine if the elevation and duration of seasonal high water in the soils could be reduced
by the use of curtain drains. Others performed engineering work to determine if the soils themselves are
suitable for on site septic.
Test pits were dug on site to determine the soil types within the area of the proposed septic system. Soils
profiles were generally friable very fine sandy loams overlying a hardpan at depth of 17 to 24 inches.
This is consistent with the well drained Narragansett soils that were mapped in the area as depicted in the
"Soil Survey of Hartford County, Connecticut" as issued by the United States Department of Agriculture.
The Narragansett as mapped in this soils survey are similar in properties to what is presently mapped as
Wethersfield soils. These soils are very deep (>65 inches) well drained loamy soils that formed in dense
glacial till on uplands. The soils are moderately deep to dense basal till which should be considered the
limiting factor for septic systems as the soils are generally moderately permeable in the solum and slow
or very slow in the dense substratum. This situation generally leads to a perched water table above the
dense substratum.
Soils on site exhibited evidence of a brief seasonal water table just above the dense substratum. It has
been shown on other sites that if a curtain drain is placed upgradient of a septic leach field that the water
that would normally flow over this hardpan from upgradient sources can be intercepted and diverted -
around the leach field reducing or eliminated the perched water condition. I believe that due to the
proposed septic systems position on the landscape, the nature of the soils previously described, and slope
of the site that a curtain drain would be effective in reducing the seasonally perched water table
If you should have any questions,please call this office at your convenience.
Sincerely;
Michael F. Gragnolati
Registered Professional Soil Scientist
02-008a