HomeMy WebLinkAbout1990-07-13r
TOMPIGNS CO
SUZANNE R. STOPEN, R.N., M.P.S.
Public Health Director
T0: Tompkins County Board of Health
FROM: John M. Andersson, P.E., Director
Steven Kern, Senior Public Health
DATE: July 13, 1990
SUBJECT: Part 75 -A Review
OF HEALTH
of Environm 1
Sanitarian ,
Environmental Health Division
401 Harris S. Dates Drive
Ithaca, New York 148W1388
807473 -7275
Heal h "-
Part
75 -A revisions of
the New York State Sanitary
Code
is effective
across the
State
on December 1,
1990. While
the Tompkins
County
Health
Department's
individual sewage program has
not conformed
to the very
rigid 75 -A in
existence in
years past, we feel
the State
will now take
steps to
ensure that the
counties with
sewage programs do
conform.
While the new
75 -A is
more liberal than
the old 75 -A,
it is more restrictive
than
current Tompkins
County
Health
Department
codes
and policies.
• After spending many hours reviewing Part 75 -A of the New York State
Sanitary Code, we feel the-attached are changes to the way we now apply individual
sewage system standards. The impact of the change, and our recommendation on how
or if to implement the change, are also noted.
In order to implement these changes, we need to modify most or all of
the system specification sheets, train our field staff, and train installers, code
officials, etc.
The changes will also require modifications to Articles I, VI, and VII
of the Tompkins County Sanitary Code. We envision this happening through a series
of public meetings, draft codes, and finally, a public hearing prior to adoption
by the Tompkins County Board of Health, and finally filing at the New York State
Health Department. This cannot happen before Spring 1991.
The most significant changes are highlighted below:
1. The minimum vertical dimension from the bottom of a system to a
restriction (rock, maximum high groundwater, unsuitable soil) will
be two feet instead of three feet. The Tompkins County Board of
Health can adopt a greater distance. We may recommend one later
(especially in areas where wells are prevalent).
2. The imposition of a maximum slope is significant, and will restrict
the area where on -site systems are allowed. Towns where the percent
• of land is over 15 percent are: Newfield (36%), Caroline (24 %),
Danby (23%), Ithaca (17%), Dryden ('12%), Enfield (97), Groton (77.),
Lansing (6%), and Ulysses (4 %). If we accept engineering designs on
steeper slopes, costs will increase.
•
L_J
Memo to Tompkins County Board of Health
July 13, 1990
Page Two
3. Larger tanks and dual septic tanks are often required, which will
increase cost but also improves the system.
4. Maximum trench width of 24" instead of 36 will increase length of
trenches and total area necessary for a system.
5. Six -month settling for raised systems means this alternative will
not often be used; the lesser known mound will be the builders'
choice.
6. Pumps are mandated for all mounds and sand filters, increasing cost.
7. The dispersion trench following a sand filter
will
be replaced by a
mound, causing more raised
sand filters
and increased
cost.
B. All these changes have
a deep effect on
subdivision
approvals. The
State Health Department
has recommended
that of
the alternative
systems, only raised systems be allowed
in subdivisions.
Our
experience with raised
systems in subdivisions
is mixed. More
thought is needed here;
the lot size for
any alternative
may need to
be increased.
JMA /kr
att.
cc: Suzanne Stopen, Public Health Director
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TOMPIGNS CO
SUZANNE R. STOPEN, R.N., M.P.S.
Public Health Director
T0:
FROM:
DATE:
SUBJECT:
CONN
• * • • s
Tompkins County Board of Health
John M. Andersson,
Steven Kern, Senior
July 139 1990
Part 75 -A Review
P.E., Director
Public Health
OF HEALTH
Environmental Health Division
401 Harris B. Date* Drive
Ithaca, New York 14850-1388
807 -273 -7275
of Environm 1 Heal
Sanitarian ,
Part 75 -A revisions of the New York State Sanitary Code is effective
across the State on December 1, 1990. While the Tompkins County Health
Department's individual sewage program has not conformed to the very rigid 75 -A in
existence in years past, we feel the State will now take steps to ensure that the
counties with sewage programs do conform. While the new 75 -A is more liberal than
the old 75 -A, it is more restrictive than current Tompkins County Health
Department codes and policies.
After spending many hours reviewing Part 75 -A of the New York State
• Sanitary Code, we feel the - attached are changes to the way we now apply individual
sewage system standards. The impact of the change, and our recommendation on how
or if to implement the change, are also noted.
In order to implement these changes, we need to modify most or all of
the system specification sheets, train our field staff, and train installers, code
officials, etc.
The changes will also require modifications to Articles I, VI, and VII
of the Tompkins County Sanitary Code. We envision this happening through a series
of public meetings, draft codes, and finally, a public hearing prior to adoption
by the Tompkins County Board of Health, and finally filing at the New York State
Health Department. -This cannot happen before Spring 1991.
The most significant changes are highlighted below:
1. The minimum vertical dimension from the bottom of a system to a
restriction (rock, maximum high groundwater, unsuitable soil) will
be two feet instead of three feet. The Tompkins County Board of
Health can adopt a greater distance. We may recommend one later
(especially in areas where wells are prevalent).
2. The imposition of a maximum slope is significant, and will restrict
the area where on -site systems are allowed. Towns where the percent
of land is over 15 percent are: Newfield (36X), Caroline (24X),
• Danby (23X), Ithaca (17X), Dryden (12 %), Enfield (9X), Groton (7%),
Lansing (6X), and Ulysses (4X). If we accept engineering designs on
steeper slopes, costs will increase.
I
Memo to Tompkins County Board of Health
July 13, 1990
Page Two
• 3. Larger tanks and dual septic tanks are often required, which will
increase cost but also improves the system.
4. Maximum trench width of 24" instead of 36 will increase length of
trenches and total area necessary for a system.
5. Six -month settling for raised systems means this alternative will
not often be used; the lesser known mound will be the builders'
choice.
6. Pumps are mandated for all mounds and sand filters, increasing cost.
7. The dispersion trench following a sand filter will be replaced by a
mound, causing more raised sand filters and increased cost.
Be All these changes have a deep effect on subdivi
State Health Department has recommended that of
systems, only raised systems be allowed in subd
experience with raised systems in subdivisions
thought is needed here; the lot size for any al
be increased.
JMA /kr
att.
• cc: Suzanne Stopen, Public Health Director
Sion approvals. The
the alternative
ivisions. Our
is mixed. More
ternative may need to
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