sop 20180814_contaminated soil Stockpile.pdf

Air Force Civil Engineer Center I n t e g r i t y - S e r v i c e - E x c e l l e n c e

July 2017

Contaminated Soil Stockpile SOP Supplemental revised october 12, 2021

Air Force Civil Engineer Center

Cross section view of a stockpile

• Note sandbags are securing the top liner

• Do not use items that can puncture and/or tear the liner

• Wattles are inside the bottom liner next to the stockpile

• Top liner extends three to five feet beyond the bottom linerDO NOT CONSTRUCT A STOCKPILE

UNLESS ALL MATERIALS ARE ON

HAND

Figure 1

General example of stockpile cross section

Large scale long term storage for 3,125 CY 1: Ropes used to hold down stockpile cover 2: Wattles used for runoff control 3: Use of 60 pound sand bags only 4: 20 mil cover

Stockpile constructed to standard or 10 mil, 6 mil is too thin

• Do NOT use logs, cables, rocks, or other items with jagged or sharp edges

• You WILL end up with rips and tears in the top cover

Figure 2

Improper weights to secure liners

• 1: Candlestick bollards are used to bring attention to the hazardous site

• 2: Sandbags are used to secure top cover

• 3: The stockpile is in an area which is regularly mowed.

• Note the use of heavy lumber to protect top cover from mowers and weed eaters

• 4: Stockpile sign is on a freestand

• Bottom liner has been lapped back over soil

• Wattles are under the top liner

Figure 3

Example of a proper stockpile

• 1: Wattles are under the top liner next to soil

• 2: Sandbags are used to secure top liner

• 3: Note placement using fences as protection

• Stockpile is away from vehicle and foot traffic

• Minimize possibility of damage

Figure 4

Example of a proper stockpile

Clear covers are not approved, covers should be opaque so plants do not grow

• Content and contamination of soil is listed

• Status is listed

• Installation and contractor POCs are listed with phone numbers

• Start date is listed

• Sign is laminated and

“secured” to sandbag

• Poor adhesion as tape weakens due to weather

• Best to use a freestanding sign

• Contrasting colors were used

Note: Name of contracting company, contractor, and full phone number were edited out for this example

Figure 5

Example of proper marking

Note: Generators may state “Hazardous,” “Contaminated,” “Toxic,” or any other such wording to express the underlying hazard of exposure, unless otherwise required by local, state, or federal regulations.

Figure 5

Example of proper marking

PFOS/PFOA

HAZARDOUS WASTE

DO NOT DISTURB MATERIAL

PROJECT POC

CLARK KENT

DAILY PLANENT

907-555-1234

EIELSON AFB POC

JOSEPH PRICE

AFCEC/CZOP

907-377-3578

HANGAR CONSTRUCTION

EIE123

GENERATION DATE: 4JUN18

POL

CONTAMINATED SOIL

DO NOT DISTURB MATERIAL

PROJECT POC

LEX LUTHOR

LEX CORP

907-555-5678

EIELSON AFB POC

JOSEPH PRICE

AFCEC/CZOP

907-377-3578

UTILIDOR EXTENSION

EIE456

GENERATION DATE: 17JUL18

• Start date is missing

• Spray paint was used

• Bled and faded over time

• Difficult to read

• Poor contrast

• Contractor had to remark stockpile

• Content and contamination of soil is listed

• Installation and contractor POCs are listed with phone numbers

Note: Name of contracting company, contractor, and full phone number were edited out for this example

Figure 6

Example of ineffective marking

• Sign is faded

• Sign was adhered using packing tape

Figure 6

Example of ineffective marking

• 1: Candlestick bollards are used to bring attention to the hazardous site

• 2: HBOs are used to tie down hazardous warning tape

• 3: Sandbags are used to secure top cover

• 4: The stockpile is in an area which is regularly mowed.

• Note the use of heavy lumber to protect top cover from mowers and weed eaters

Opposite sides of same stockpile

• Wattles are used to “seal” the stock pile

• Note the use under the top liner and outside of the stockpile liners

Figure 7

• 1: Candlestick bollards are used to bring attention to the hazardous site

• 2: Sandbags are used to secure top cover

• 3: Wattles are used outside of liners

• Serving as secondary containment

• Each sandbag has a contaminated soil stockpile sign attached

Figure 8

2 2

• Laminated

• Attached to securely driven metal post

• All required information listed

Figure 9

Contaminated Stockpile Entrance Sign

• Laminated

• Attached to locally constructed stand

• Used 2x4 lumber

• All required information listed

Figure 10

Contaminated Soil Stockpile Sign

• Either locally constructed or commercial stands

• Note: Sandbags weighing down locally constructed sign

• Commercial stand has a wide base

• Withstands strong winds

• Structurally durable

• Multipurpose/Reusable

Figure 11

Contaminated Stockpile Sign Stands

• Earth berms were used as secondary containment

• Note use of liners extending from stockpile to cover berms

• Liner is weighed down with sandbags

Figure 12

Earthen Berms

20 mil reinforced polyethylene bottom liner

General example large scale (1,000 cubic yards and above), long term stockpile

Extend top cover 3’-5’ beyond wattle

Wattle must be in contact with soil to serve as an absorbent

10 mil top cover

Secure perimeter every 5’

60 lb. sandbags

Large stockpiles can be tiered