sheet offsite phase iv... · 2016-12-20 · sheet 1 of 5 708 heartland trail, suite 3000 (53717)...

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708 Heartland Trail, Suite 3000 (53717) Madison, WI (608) 826‐3600 FAX: (608) 826‐3941

PROJECT/PROPOSAL NAME PREPARED CHECKED PROJECT/PROPOSAL NO.

Dairyland Power Cooperative; Phase IV

Alma Off‐site Disposal Facility

By: Date: By: Date: 243332.0002

J. Hotstream 11/9/2016 T. Martin 11/22/2016

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INSPECTION REPORT

Landfill Annual Inspection Report

Purpose:

This inspection checklist has been developed to meet the requirements for inspections by a

qualified professional engineer for a coal combustion residual (CCR) landfill. This checklist

exceeds the requirements for 40 Code of Federal Regulations 257.84(b). This inspection of the

Alma Off‐Site Disposal Facility Phase IV Landfill was performed by TRC Environmental

Corporation on behalf of Dairyland Power Cooperative (DPC).

The goal of the inspection is to ensure that the design, construction, operation, and maintenance

is consistent with recognized good engineering practices. In addition, the inspection looked for

conditions of structural weakness or conditions that may affect the safe operation of the CCR

unit.

The following were performed for the inspection of the CCR unit.

Review of Available Information:

The following documents were reviewed in preparation of the site visit.

Health and Safety Plan

Fugitive Dust Control Plan (10/14/2015)

Plan of Operation (October 2000)

Annual Landfill Inspection Report (12/21/15)

Post‐Closure Plan (10/2016)

Closure Plan (10/2016)

Run‐on and Run‐off Control System Plan (10/2016)

Corrective Measures Report for Storm Water Runoff Event of Aug 8, 2015

Weekly inspections performed by qualified personnel (11/23/2015 through 11/2/2016)

Comments on the Operating Record: Electronic system, well organized, accessible in office

Summary of the Site Conditions (based on document review):

DPC operates a CCR landfill (Alma Off‐Site Disposal Facility Phase IV Landfill) located in the

NE 1/4 of the NE 1/4 of Section 19 and portions of Sections 18 and 20, T21N, R12W, Town of

Belvidere, Buffalo County, Wisconsin (see Figure 1). The location of the Phase IV landfill is in a

valley along with three phases of non‐contiguous closed landfills. This inspection addresses

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By: Date: By: Date: 243332.0002



INSPECTION REPORT

only the Phase IV landfill, because the Phase 1, II, and III landfills were closed prior to the

promulgation of the federal CCR rule (40 Code of Federal Regulations 257.50 through 107).

The Phase IV landfill is permitted through the state of Wisconsin. To date the liner system

Cells 1, 2A, 2B, 3A and 3B have been constructed with final cover installed over a portion of

Cells 1, 2A, and 2B. Cell 3B of the Phase IV landfill was constructed during 2015. The landfill

construction included a composite liner system, composite cover system, leachate collection

system, leachate storage tank, and storm water controls (diversion berms, sedimentation basin,

ditching, and downslope flumes). During summer of 2016, 2.8 acres of final cover were

installed over the remaining portion of Cell 1 and portions of Cells 2A and 2B.

Changes to the unit since the previous report:

Since the inspection in 2015, CCR placement has begun in Cell 3B and final cover was installed

over a portion of Cells 1 and 2.

Approximate volume of CCR in the unit at the time of the inspection: Approximately

975,300 cubic yards (based on November 2, 2016 topographic survey)

Visual Inspection:

A site visit and visual inspection were performed by Jonathan Hotstream (TRC Environmental

Corporation) on November 9, 2016.

Time arrived on site: 10:20 AM ______________________________

Time departed from site: 12:15 PM ___________________________

DPC Personnel Present: Leif Tolokken, Rick Loppnow _________

Weather Conditions: Sunny, ~ low to mid 50s ˚F, slight wind ____

Summary of Items Visually Inspected: Electronic operating record, weekly inspection forms, _

final cover areas including diversion berms, flumes, vegetation; perimeter run‐on controls ____

including culverts, ditches, rock checks, riprap; working area conditions; access roads; ________

sedimentation basin; leachate pipe cleanouts; and surface conditions at the leachate collection _

tank. _______________________________________________________________________________

Site Operations during Inspection: Trucks hauling CCR from JPM plant and placement of CCR

in landfill. Contractor on‐site repairing storm water controls downstream of SB‐1. Watering __

ash on working face. _________________________________________________________________

___________________________________________________________________________________

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By: Date: By: Date: 243332.0002



INSPECTION REPORT

Appearance of structural conditions:

Final Cover Conditions (Cell 1 and 2A/2B areas):

Vegetation Condition: Very Good _____________________

Evidence of Erosion: Yes: None: X

Evidence of slumping, sloughing, or slope distress: Yes: None: X

Evidence of seepage: Yes: None: X

Comments: Vegetation emerging in areas of new final cover construction, continued good ___

growth on areas of existing final cover (state approved tall grass prairie vegetation) __________

Perimeter Berm:

Vegetation Condition: Good __________________________________________________________

Evidence of Erosion: Yes: None: X

Cracking along crest: Access road along crest Yes: None: X

Evidence of slumping, sloughing, or slope distress: Yes: None: X

Evidence of seepage: Yes: None: X

Phase Delineation Berms: Good, separation of CCR from exposed geomembrane ____________

Comments: Minor rutting and sedimentation in perimeter ditch. Sediment to be removed ___

during cooler weather when area is accessible. __________________________________________

Storm Water Controls:

Run‐on Controls: Well controlled via perimeter berms and final cover slopes. _______________

Perimeter Drainage Ditches: Good condition, well maintained, minor sediment ______

deposition ____________________________________________________________________

_____________________________________________________________________________

Comments: This sediment will be removed when areas dry/freeze sufficiently for _____

equipment access. _____________________________________________________________

_____________________________________________________________________________

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By: Date: By: Date: 243332.0002



INSPECTION REPORT

Run‐off Controls: Final Cover

Diversion Berms: Well‐maintained, clear of obstructions, and no ponding observed. __

Downslope Flumes: Well maintained and clear. __________________________________

Ditching: Some minor accumulated sediment that will be removed once drying/freezing

allows equipment access. _______________________________________________________

Comments: Storm water controls are well maintained at the site. Areas with _________

accumulated sediment will be cleared as they become accessible. Storm water ________

successfully managed to prevent run‐on into the active area of the landfill.____________

Sedimentation Basin No. 1:

Outlets Operational: Yes, maintenance cleaning being performed during inspection. ___

Culverts Operational: Yes, clear and operational __________________________________

Comments: Some minor sediment accumulated in the basin. This cleanup is scheduled

during the winter. _____________________________________________________________

Operating Conditions:

Changes in Operation since the previous annual inspection: Began placing CCR in Cell 3B. ___

Access Road Conditions: Very good access road conditions, good aggregate cover, no rutting _

observed. ___________________________________________________________________________

Landfill Operations:

Temporary Storm Water Controls: Well maintained controls of sufficient capacity. Buffer ____

between CCR placement and delineation berms _________________________________________

___________________________________________________________________________________

Working Face Conditions: Well maintained, watered as needed with water truck, trucking in _

CCR and spreading. __________________________________________________________________

Access roads: Well maintained, tracking pad installed to remove CCR from trucks exiting ____

landfill. _____________________________________________________________________________

___________________________________________________________________________________

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By: Date: By: Date: 243332.0002



INSPECTION REPORT

Fugitive Dust Observed: Yes: No: X

Comments: Watering working face with water truck ______________________________

_____________________________________________________________________________

Leachate Management: System operational, minor ponding will be addressed with on‐site ___

operations. _________________________________________________________________________

Ash Tracked Out on Access Road? Yes: None: X

Leachate Collection System: Pipes buried, not visible _____________________________________

___________________________________________________________________________________

Pipe Cleanouts: Clean & accessible ______________________________________________

Tank: No concern _____________________________________________________________

Loadout Area: Accessible ______________________________________________________

Comments: Well maintained ___________________________________________________

_____________________________________________________________________________

Conditions that may potentially impact safety: None ___________________________________

___________________________________________________________________________________

___________________________________________________________________________________

Observed Deficiencies and Proposed Corrective Actions: _________________________________

Sediment to be removed from perimeter ditches as they become accessible by equipment. _____

Sediment to be removed from Sedimentation Basin 1 as it dries out. ________________________

DPC has scheduled these activities to occur when the areas become accessible. ______________

___________________________________________________________________________________

___________________________________________________________________________________

Future Action:

Update Item 9 – Site Operations on the Weekly Inspection Form to reflect current conditions. __

Continued monitoring and maintenance of storm water controls ___________________________

Continued implementation of dust control practices. _____________________________________

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Photographic Log

Client Name: Site Location: Project No.:

Dairyland Power Cooperative Phase IV Off‐Site Disposal 243332.0002

Photo No. Date

1 11/9/2016

Description

Perimeter access road with final

cover on left side of frame.

Photo No. Date

2 11/9/2016

Description

Final cover installed during

2016. Vegetation emerging.

Diversion berms covered.


Photographic Log



Photo No. Date

3 11/9/2016

Description

Active area of the landfill

(Cells 2 and 3). Exposed

geomembrane phase delineation

berm on right side of frame.

Photo No. Date

4 11/9/2016

Description

Perimeter access road and

perimeter ditch.


Photographic Log



Photo No. Date

5 11/9/2016

Description

View of access road into active

area of landfill. Tracking pad is

located prior to exiting landfill

to remove CCR from vehicle

tires.

sheet offsite phase iv... · 2016-12-20 · sheet 1 of 5 708 heartland trail, suite 3000 (53717)...

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