HomeMy WebLinkAboutConstruction Notes & photos - Consultant Review - 25 Beechwood Drive 12/27/2022 North Andover Health Department
(ommunity and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 25 Beechwood Drive MAP: 34 LOT: 50
INSTALLER: Rocci DeLucia, Jr.
DESIGNER: Ben Osgood
PLAN DATE: 10/18/21
BOH APPROVAL DATE ON PLAN: 11.18.2021
INSPECTIONS
TANK INSPECTION: 06.28.2022 S.Casey
DATE OF BED BOTTOM INSPECTION: 6.17.2022 sand — 06.21.222 S. Casey
DATE OF FINAL CONSTRUCTION INSPECTION: 9/28/22 — D. Ottenheimer
10/21/22 — D. Ottenheimer. 10/26/22 — D. Ottenheimer
DATE OF FINAL GRADE INSPECTION:12/22/2022 S. Casey
SITE CONDITIONS
❑ Contractor reports any changes to design plan
❑ Internal plumbing all to one building sewer
❑ Topography not appreciably altered
Comments:
SEPTIC TANK
® Building sewer in continuous grade, on
compacted firm base
❑ Cleanouts per plan
❑ Bottom of tank hole has 6" stone base
® Tank size and loading per plan
Monolithic tank construction
® If monolithic, water tightness of tank has been
achieved by visual testing
® Inlet tee installed, centered under access port
® Outlet tee installed, centered under access port
® Gas baffle installed
❑ Riser with cover to within 6" of finish grade
installed over one access port
® Manhole and riser minimum 20 inch diameter
❑ Pipe penetrations appear watertight using
rubber boots
Comments:9/28/22 — Pipe existing septic tank at an angle, boot held on with
metal clamp. Requested contractor demonstrate that this connection is
watertight at the next construction inspection. D. Ottenheimer
10/21/22 — Contractor demonstrated watertightness of tank penetration. D.
Ottenheimer
DISTRIBUTION-BOX
❑ Installed on stable stone base
® H-20 D-Box
® Inlet tee (if pumped or >0.08'/foot)
® Hydraulic cement around inlet & outlets
® Even distribution observed
® Schedule 40 PVC Pipe
Comments:
SOIL ABSORPTION SYSTEM (General)
❑ Bottom of SAS excavated down to specified
soil layer, as provided on plan
® Size of SAS excavated as per plan
® Sand installed, if specified on plan
® Sand displays few fines when handled
❑ 40 Mil HDPE barrier installed, if specified on
design plan
® Laterals installed and ends capped or
connected to header (and vented if impervious
material above)
❑ Retaining wall material, location and height if
specified on plan
Comments: 9/28/22 — Leach stone contained fines and unsuitable material
adhered to it. To be removed, bed bottom inspection performed, then re-
inspected. D. Ottenheimer
10/21/22 — Leach trench elevations were incorrect by as much as 9". Need to be
re-constructed. D. Ottenheimer
10/26/22 — Re-inspection showed additional stone added to leach trenches to
make pipe inverts correct
FINAL GRADE
® Final cover as per plan
® Loamed
® Seeded
® Cover per plan
Comments: 12.22.2022 S.Casey seeding and straw placed
DOCUMENTS NEEDED
® Certification of Installation Form submitted
by designer and signed and dated by
designer and installer
® As-Built Plan by designer
10/21/22 — Benchmark on the onsite wastewater design plans no longer
available. New benchmark had been established at elevation 67.09. Engineer
requested to provide a statement indicating this is correct and acceptable to use.
D. Ottenheimer
BM = 67.09
H R = 2.44/2.82
HI = 69.53/69.91
Tank and D-box were examined on 10/21 using HI 69.52, Trenches were
examined 10/26 using HI 69.91
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Building Sewer OUT 65.50
Septic Tank IN 4.61 64.59 64.50
Septic Tank OUT 4.78 64.42 64.33
Distribution Box IN 5.10 64.10 64.08
Distribution Box OUT 63.90
Lateral 1 BEGINNING 5.90 63.68 63.60
Lateral 1 END 6.21 63.37 63.35
Lateral 2 BEGINNING 5.88 63.70 63.60
Lateral 2 END 6.19 63.39 63.35
GRAINSIZE DISTRIBUTION REPORT - AGGREGATE GRADING I
I
c c c c 5 0 0 0 0
IIIIIII
III 0
0 IIIIIIIIIIII a
100 IIIIIIII III AoaIIIIIIIIIII
I
M
ESBURY SCHOOL-SAND&GAEL
90 07 0
60 1114,4211 j 20
2:
m
60 40Z
50Z �Mm4,
w40 60m
a3o 70`
20 80
10 I I I I s0
0 100
1000 100 10 1 0.1 0.01 0.001
GRAIN SIZE-mm.
%Gravel %Sand %Fines
%+3" Coarse I Fine lCoarsel Medium Fine Silt Clay
0 12 20 11 3b 19 2
SIEVE PERCENT SPEC." PASS? Material Description
SIZE FINER PERCENT (X=NO) SAND AND GRAVEL.
3 100 100
2 98
1.5 96 Atterberg Limits
1 91 3/4 88 PL= LL= PI=
1/2 81 50-85 Coefficients
3/8 77 ;D90= 23.2806 D85= 16,0971 D60= 2.4904
#4 68 40-75 ;D50 1.2823 D30= 0.5743 D15= 0.3422
#10 57 D10= 0.2651 Cu= 9.39 Cc= 0.50
#20 41 Classification
#40 21 10 35 USCS= SP AASHTO=
#50 12
#60 9 Remarks
#80 5
#100 4
#200 1.6 0.0-8.0
AMESBURY SCHOOL-SAND&GRAVEL
Source of Sample:BEECHWOOD DR,No.ANDOVER STOCKPILE
Sample Number: Lzl149A Date: 9-30-21
Client:
M T T CRENG1rtTERr\G&TESTING,1NC. Project: FRANK DELUCIA&SON QC
Project No: 21.113.NH Figure L21349A
Tested By: DM/NL
GRAINSIZE DISTRIBUTION REPORT - AGGREGATE GRADING
S.
S.
N t0+1 Q 0
100
AMES
III III 1I 1 1I I 1I II I II II II II II
GRANULARFILL 0
90 1 1 1 0
so111Y11
_ I
20
►— I I I I I I I I �"-:� I I I I I
= 70 30
I I I I I I I r I I I I T
4i. r
m
I I I I I I �� 1r {I I I I 40 z
w
I I I I I I j gI I I so m
Z 40 s t 60
w z
m
w 30
70
0- I I I I I I I I �� ' I
20 a
80
10
I I I I I I f 90
I I I I I I I I I I I
° 100
1000 100 10 1 0.1 0.01 0.001
i
GRAIN SIZE-mm.
% +3„ %Gravel %Sand %Fines
Coarse Fine Coarse Medium Fine Silt Ciay
0 12 20 11 36 19 2
SIEVE PERCENT SPEC.` PASS? Material Description
SIZE FINER PERCENT (X=NO) SAND AND GRAVEL.
3 100
2 98
15 9
1 91 Atterberg Limits
3/4 88 PL= LL= P1=
1/2 81 Coefficients
3/8 77 D90= 23.2806 D85= 16.0971 D60= 2.4904
#4 68 D50= 1.2823 D30= 0.5743 D15= 0.3422
010 57 30-90 D10= 0.2651 Cu= 9.39 Cc= 0.50
#20 41 Classification
#50 12 1070 0# USCS= SP AASHTO=
#60 9 Remarks
#80 5
#100 4
#200 1.6 0.0-15
AMMURY SCHOOL-GRANULAR FILL
Source of Sample: BEECIIWOOD DR.No.ANDOVER STOCKPILE
Sample Number: L21349A Date: 9-30-21
Cllent:
MU.IYR ENGINTtERMG&I SMG,INC. Project: FRANK DELUCIA&SON QC
04
Pro ect No: 21.113.NH Figure L21349A
Tested By: DM/NL
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