160629-Addendum001-GT_Septic_System.pdf

SEE MANSION AREA DETAIL - SHEET C-2

INSTALL MANHOLE #2

SEE SAND MOUND AREA DETAIL

SHEET C-3

ABANDON SEPTIC TANK

ABANDON CLEANOUT

CUT 8" BELOW GRADE

AND COVER.

ABANDON SEWER LINE

ABANDON SEPTIC TANKS

ABANDON SEWER LINE

INSTALL SEWER LINE "E" 4" X 315'

FROM MANHOLE #2 TO SEPTIC TANK

BY TRENCHLESS CONSTRUCTION

OR CONVENTIONAL TRENCHING

USE TRENCHLESS CONSTRUCTION WITHIN 20 FEET

OF WALKWAY. AVOID ANY DISTURBANCE

OF WALKWAY. PROVIDE A TEMPORARY RAMP

FOR HEAVY EQUIPMENT TO CROSS WALKWAY.

INSTALL CLEANOUTS

AT APPROX. 100' SPACING

SEE DETAIL

INSTALL CLEANOUT

AT CHANGE IN GRADE

NEW HDD TRENCHLESS LINE

EXISTING SEWER DROP & LINE

IN BASEMENT

U.S. DEPARTMENT OF AGRICULTURE

FOREST SERVICE

No.

Revision/Issue Date

NOTES

SEPTIC SYSTEM SITE PLAN

GREY TOWERS

NATIONAL HISTORIC SITE

GREG PORTER PE

R9 TST ENGINEERING

Grey Towers National Historic Site

SPF

C-1

1" = 60'

G. PORTER

4/2016

CONTOUR LINES ARE APPROXIMATE

AND MAY NOT REPRESENT THE

EXISTING GROUND ACCURATELY.

THERE ARE MANY BURIED UTILITIES

WITHIN THE PROJECT AREA. THIS

DRAWING INDICATES OWNER'S

KNOWLEDGE OF BURIED UTILITIES.

MANY UTILITIES ARE OWNED BY GREY

TOWERS AND ARE NOT UNDER THE PA

ONE CALL SYSTEM. CONTRACTOR

SHALL USE ALL APPROPRIATE

METHODS TO LOCATE AND AVOID ALL

BURIED UTILITIES.

FINAL MANHOLE LOCATIONS WILL BE

STAKED BY THE COR.

ALL GROUND DISTURBING ACTIVITIES

SHALL BE CAREFULLY CONTROLLED

AND KEPT TO A MINIMUM.

CONTRACTOR SHALL ACCESS THE

SITE USING THE HARDENED ACCESS

WAY, AND LIMIT EQUIPMENT AND

OPERATIONS TO THE AREA ALONG

THE PIPELINES AND AREAS BEING

CONSTRUCTED. DRILLING SLURRIES

SHALL BE CONTAINED WITHIN LINED

PITS OR TANKS, DRILL CUTTINGS

SHALL BE STOCKPILED ON TARPS AND

PROMPTLY REMOVED FROM THE SITE.

COORDINATE WITH THE COR TO KEEP

DISRUPTION OR NECESSARY

CLOSURE OF THE WASTEWATER

PRODUCING AND TREATMENT

FACILITIES TO A MINIMUM.