HomeMy WebLinkAboutROSEBERRY PARK ESTATES BLK 2 LT 12Roseberry Park
Estates
Block 2
Lot Z2
#050-315-47
GARNESS ENGINEERING GROUP, Ltd.
CONSULTANTS & GENERAL CONTRACTORS
May 10, 2013
Municipality of Anchorage
Development Service Department
On-Site Water & Wastewater Program
4700 Elmore Road
P.O. Box 196650,
Anchorage, Ak 99519-6650
(907) 343-7904
Ref: Response to Comment Sheet for Roseberry Park Estates; Lot 12, Block 2,
Mr. Crewdson:
The following is our response to the 5/9/2013 Comments for the reference property:
~ "Bedroom Counts:" - We have talk to the contractor building the house and the homeowner and
builder have decided to make the house with 4 bedrooms. We have revised the design letter, site
.~,,slan, and design drawing to reflect this change.
eptic Tank - Size:" - A 1500 gallon STEP tank is required for a 4 bedroom residence. We have
revised the design letter and design drawing to reflect this.
~l~'~Drainfield - Cover Depth:" - There is already a note on the design drawing that states when
insulation is needed.
~. "Drainfield - Lot Line Waiver:" - We have added the request for the 1 foot lot line waiver to the
application and design letter. The 5 foot lot line waiver to the north property line is no longer
i/~r~rqUired with changing the syste,rn design to 4 bedrooms.
ainfield - South Slope Waiver: - We have provided a cross section for the slope waiver to the
South. Since we have revised the design for a 4 bedroom system, we no longer require a slope
6. 'Drainfleld - Adjacent Driveway:" - We have revised the design to show th~ drainfleld 10 feet
.,~ from the North property line. There is a house located on the Patnode Homestead Tract and it is
our understanding that it currently has legal access through Roseberry Park Estates; Block 3,
Lots 2 and 3. It is reasonable to believe that the platted access will never be used for driveway
a?cess.
and the cress section detail drawing has been eliminated.
~ 'ROW Backslope - Retaining Wall:" - We are no longer requesting a slope waiver to the steep
slope and the cross section detail drawing has been eliminated. The retaining wall does not
affect the septic system design.
~. 'Percolation Tests -Tolerence" -We have added a note to the soil logs.
l[~e~U, rT(l~Painn~Oynotuh~/~oeuhr ~,s; ~dnc~etSed~ yo_our comme~~e p~ bL
Preside /
/
3701 E. Tudor Road, Suite 101 * Anchorage, AK 99507-1259
Ph: (907) 337-6179 * Fax: (907) 338-3246 * Website: www.garaessengineering, com
L~ I ? } I WELL NORTH OF
~ ~% ~ '~ ~ APPROX. /
~~~.' ~/ ,'~ __~' ~ ~: .
OAR SS
wP[ OF WO.K: .AT,: REVISED
SITE PLAN OF PEOPOS[D WELL AND SEPTIC SYSTEM 5/10/2013
GARNESS ENGINEERING GROUP, Ltd.
.... ~. · E-79 3 .'
PE 0R ED 0R' DATE' %
DEPTH ~
(feet) :=::z-- ORG I ]
i_~F~ LOAM (SM) TEST HOLE #1
~W/ ROOTS
c:, ~'. C SOIL CLASSIFICATIONS
ec'~:.',, ;..;::;,,:,~:.: GW :::_. ORG
,:?..:~:,P., GM CL
'?: ~:·%, GC OL
:?~:~:.'., ~ SW~/// NH
;~;"%'~'° °' SP CH
~::..~:,,'., SM OH
,,.,:..., sc SEE ATTACHED SITE PLAN
6 -- · :!; ? ,e ;,
:'?'.:'::"" DEPTH TO
7 -- .::? ? ,, ~ DATE
:. ~::.::,,, GROUNDWATER
':::::
~:'!;.:. ~:~,% 9/1 1/12
8-- ::,? 'ce; DRY
?.:' ee% DRY 9/13/12
9--,.:=:.,,,; GP TO SP DRY 9/18/12
'::';:*'% CLOCK NET TIME WATER LEVEL NET DROP
~c,:·'. DATE READING
11 --.? ::..% TIME (MINUTES) READING (INCHES)
::? ; ~!·' ' 6"
: :7' ':.·% 9/1 ..3/1 2 1 - - -
'?~:.~:·'. 2 - 1 0 3"
:~C. ~:9% ,3 - - -
':?: ':'" 3 - I/4" 2 -,3/4"
:: i? ' · % 4 - 1 0
;: ?,$ % 6 - 10 3-1/4" 2-3/4"
:? :,:·" e -- 6"
15--::: ?.~%. 7 - -
::: 's % 3 - 1/4" 2 - .3/4"
~.:.~:$.e 8 - 1 0
1 6 -- ::: ;.,: .e % 6"
· $.:..~:$. e 9 - - -
17__~ 10 - 10 ,3-1/4" 2-,3/4"
B.O,H.
11 - _ 6- -
18 -- 12 - 10 3-1/4" 2-3/4"
PERCOLATION RATE 3.6 (PIlN./INCH) PERC. HOLE DIA. 6 (INCHES)
19-
TEST RUN BETWEEN 5 FT. AND 6 FT.
20 I- A FOUR HOUR PRESOAK WAS PERFORMED: [] YES [] NO
SOILS LOGGED BY: JODY MAUS PERCOLATION TEST PERFORMED BY: JODY MAUS
COMHENTS: PERCOLATION READINGS ARE WITHIN 1/16TH INCH.
PERFORMED BY GEG, Ltd. I, JEFFREY A. GARNESS, CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE
WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE:
DEPTH TO DATE
GROUNDWATER
DRY 9/11/12
DRY 9/13/12
DrY 9/18/12
---- --~'~ '~ CF.~79.~3~ C -79 .3 .' ~:~'
DEPTH ~
~ LOAH (SH) ITEST HOLE #2
1-- ~W! ROOTS
.~ ~t.,,., SOIL CLASSIFICATIONS
~?,:..::e% ~ GC OL
>~ SW ' MH
::~ ~:,,". ~~ SM OH
SC SEE ATTACHED SITE PLAN
:~c¥.'. DEPTH TO
:~C ::,', GROUNDWATER
8 --:¥i;-j~% DRY 9/1 1/12
~:~':-!~ % DRY 9/13/12
::~ '~.. GP TO SP DRY 9/18/12
:: ~?.~% CLOCK NET TIME WATER LEVEL NET DROP
,?c. ,:.°. DATE READING
11 --:?~?.~ TIHE (HINUTES) READING (INCHES)
:': C:"% 9/13/12 1 - - 6" -
12 -- :.??.e; 0" 6"
:~::..~:e% ' 2 - 7
::~ '?'el 6"
1 5 -- ? F.e% 7 - - 6" -
~ 9 - _ 6- _
B.O.H.
17-- 10 - 7 O"
11 - _ 6,, _
18-- 12 - 7 O" 6"
PERCOLATION RATE 1.17 (MIN./liqCH) PERC. HOLE DIA. 6 (INCHES)
1g--
TEST RUN BETWEEN 5 FT. AND 6 FT.
20-- I A FOUR HOUR PRESOAK WAS PERFORMED: [] YES [] NO
SOILS LOGGED BY: JODY MAUS PERCOLATION TEST PERFORMED BY: JODY MAUS
COHHENTS: PERCOLATION READINGS ARE WITHIN 1/16TH INCH'
PERFORMED BY GEG, Ltd. I, JEFFREY A. GARNESS,:CERTIFY THAT THIS W~.~,~i,;ORMED IN ACCORDANCE
WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE: ! ,