HomeMy WebLinkAboutPENNINGTON PARK BLK 2 LT 9Pennington
Park
Block 2
Lot 9
#020-181-47
STATE OF ALASKA
DEPARTMENT OF ENVIRONMENTAL CONSERVATION
CONSTRUCTION AND OPERATION CERTIFICATE
FOR
IDOUIESTIC WASTE'4VA'T EROSAL SYSTEMS r3� 4o,�-9
A. APPROVAL TO CONSTRUCT A.
Plans for the construction or modification of
Gt.gdomestic wastewater disposal system .
located in . Alaska, submitted in accordance with 18 AAC 72210. ,
L7-1 have been reviewed and am
approved.
conditionally approved (see attached conditions).
BY TrfI.E� DATE
If construction has not started within two years of the approval date, this certificate is void and new plans and specifications must
be submitted for review and approval before construction. J:
B. APPROVED CHANGE ORDERS o Q g�i Irr' S•!
C. APPROVAL TO OPERATE
The "APPROVAL TO OPERATE" section must be completed and signed by the Department before this system is made available
for use.
The construction of the -fJ fir estic wastewater disposal system was completed
W
on C..yt/ 3 X (date). The system is hereby granted interim approval to operate for 90 days following the completion date.
BY TITLE - DATE
As-built/record drawings, submitted to the Department, or an inspection by the Department, has confirmed that the domestic
wastewater disposal system was constructed insubstantial conformance with the approved plans. The system is hereby granted
final approval to operate.
TITLE DATE
cDistribution: 2. Retain original for project file
2. Make copies for distribution
(Rev 419'
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Advanced Tr��aOrnent Sys[cvn
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GARNESS ENGINEERING GROUP, Ltd
-------
ENGINEERING a SALES o CONSULTING L— — —
January 25, 2019
Municipality of Anchorage
Development Service Department
On -Site Water & Wastewater Program
4700 Elmore Rd. P.O. Box 196650;
Anchorage, AK 99519-6650
(907) 343-7904
Ref: Pennington Park S/D; Block 2, Lot 9 (17200 Golden View Drive, Anchorage, AK)
Memo concerning converting CAT III AWWTS to CAT II AWWTS septic system
To whom it may concern:
The permitted septic system was installed on the referenced property in 2005 and the
drainfield was upgraded/rebuilt in 2008 under ADEC jurisdiction. In 2010, GEG obtained a
COSA for this property which is now under MOA jurisdiction. GEG employees have checked the
monitoring tubes in the drainfield periodically for the last year and found the liquid levels to be
operating within the drainfield designed effective depth. We would also like you to note that in
August of 2016 an air blower (in a housing) and diffuser was added to the 2nd compartment of
the S.T.E.P. tank to enhance the performance on a temporary basis. Recently, ARM Septic
Services, LLC installed a permanent set-up of this air supply system and we are recommending
that this system should be considered a permanent enhancement to the system. In order to
simplify the overall operation and maintenance of the system, we are proposing that this unit
be permanently configured as a CAT I I system. Our justifications are as follows:
• The receiving soil had percolation rates of 20 minutes per inch. Given this percolation rate, a
2.0 gpd/sq.ft. application rate is required for a Cat II system.
The residences on this property have a total of 5 bedrooms, so 375 sq./ft. of absorption area
is required for a CAT II system (750 gpd / 2.0). The existing 2008 drainfield has 594 sq./ft. of
absorption area. In short, the drainfield meets the Cat II absorption area requirements.
At this time. we request that your department approve a CAT II configuration be used at the
referenced property. Upon your concurrence, we will have ARM Septic Service, LLC, either
leave the Jandy valve actuator in the discharge position; or have them completely remove the
actuator and leave the valve in the open position. We will also have them place a CAT II sticker
., M.S.
3701 East Tudor Road, Suite 101 * Anchorage, Alaska 99507-1259
Phone: (907) 337-6179 * Fax: (907) 338-3246 * Website: www.garnessengineering.com
G-ARNESS ENGTNEERFSG tGROTLTP, Ltd t
_ ........ C0NSULTA,NTS ,GFNEFRA L, CC;rs T R ACT0F S
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SCIS LOG PERCOLWrION TESD'
I.®CAL DESCRIPTION: € ENNiNGTON PARK SUBDMSION-, LOT 9. BLOCK 2
PERFORMED FOR: RANDY KARE-LA DATE: 8/24,12001
DEPTI�
1 sy
ORGANICS
DEPTH TO DATtE
GROUNDWATER
CORY 8 24/200-1
DR 9 7 2i}ti1
DATE READING
OIL CLASSIFILA20NS
�IE�' TIME
(KNU T E)
WATER LEVEL
READING
NET CROP
(IN��ES)
8/26/2001 1
3:16
—
6.
�[MI[Wi GM
CL
30
Gc
OLa
3
' Y' X` t�
r,o
SP
4,
4:16
30
41/20
1 1/2'
4.16
DEPTH TO DATtE
GROUNDWATER
CORY 8 24/200-1
DR 9 7 2i}ti1
DATE READING
CLOCK
TIME
�IE�' TIME
(KNU T E)
WATER LEVEL
READING
NET CROP
(IN��ES)
8/26/2001 1
3:16
—
6.
1 2
3.46
30
4 B"
1 5J "
3
3:46"
4,
4:16
30
41/20
1 1/2'
4.16
_
6"
6
4.47
30
4 1/2-
1 1/0
S
19 FEI+C__ATiGNRATE 20 ("MiNdINCI-1) PER.. HCL.F. DDA. 6� �IN11HES)
TEST 2C Ri. N BETVolEE.N 5.0� 1. AND 5.0 FT
,
.fOMMENTIS, FERC HOLE WAS PRE—SOAkED FOR 4+ HOURS
P RC TES PERFORMED 6Y JgE WRG E71
PERFORMED BY GARNESS ENGINEERING GROUP 1, JEFFREY A. GARNESS, CERTIFY THAT THIS AS PERFORMED,
IN ACCORDANCE ANCE 4 ITH ALL STATE AND MUNfCIPAI GUIDELINES IEFFECT ON THIS DATE
