Attachment A.Revised.pdf

PDF 16 MB Posted Aug 5, 2026

Attached to: Black Butte Oxidation Pond Liners
Solicitation number: W9123826QA026
Issued by: Department of the Army Corps of Engineers Engineering District Sacramento

About this file

Written by GovTribe AI · Aug 5, 2026

This document is a set of technical drawings and photographs for the Oxidation Pond Liner Replacement Project at Black Butte Dam & Lake in Orland, California. The project involves the replacement of liner systems at three oxidation ponds: Buckhorn Oxidation Pond, Eagle Pass Oxidation Pond, and Orland Buttes Oxidation Pond.

The technical specifications include installation of RPP (reinforced polypropylene) liner systems at all three ponds, with detailed fence and gate construction requirements. The Buckhorn Oxidation Pond features four pipe inlet penetrations (two 4-inch diameter pipe inlets and two 4-foot by 0.5-foot concrete inlet pads). Eagle Pass Oxidation Pond requires one 4-inch diameter pipe inlet and one 4-foot by 0.5-foot concrete inlet pad, along with removal and replacement of a 12-foot double swing gate and 340 linear feet of fence. Orland Buttes Oxidation Pond requires one 4-inch diameter pipe inlet and one 4-foot by 0.5-foot concrete inlet pad. All three sites require maintenance road construction with 3 inches of 3/4-inch crushed aggregate on compacted subgrade. The drawings include detailed fence elevations, line post details, corner post configurations, gate hinge assemblies, and latch mechanisms. Water draft locations are identified at each pond for construction support purposes. Satellite imagery and site photographs document existing conditions at each location for reference during construction execution.

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Access Route

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Long -122.37686

Buckhorn Oxidation Pond Lat 39.8128 Long -122.3689

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Eagle Pass Oxidation Pond Lat 39.80179 Long -122.34400

Orland Buttes Oxidation Pond Lat 39.77161 Long -122.35056

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Access Route Entry to Orland Butte Oxidation Pond Lat 39.76287 Long -122.34048

Oxidation Pond Liner Replacement Project Black Butte Dam & Lake

Orland CA

Vicinity Maps

Access Route Entry to Eagle Pass Oxidation Pond Lat 39.80700 Long -122.32992 t.oidlcid C •

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Attachment "A"

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3 AUG 26

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Polygon Sketch to Scale 4,702.7 sf

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Area Measurement 11,936.49 sf

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PolyLine

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Callout Install RPP Liner System

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Callout Maintenance Road: Place 3 inches of 3/4-inch Crushed Aggregate on compacted subgrade.

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Text Box Existing Fence & Work Limits

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3 - Original Improvement Plan - Eagle Pass Oxidation Pond

Oxidation Pond Liner Replacement Project Black Butte Dam & Lake

Orland CA

Eagle Pass Oxidation Pond

4 - Satellite Imagery - Eagle Pass Oxidation Pond

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Length Measurement 136'-1/4"

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Length Measurement 68'-10 3/4"

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Line

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Line

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DELETED

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Callout Remove & Replace 340 LF of Fence

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Callout Maintenance Road: Place 3 inches of 3/4-inch Crushed Aggregate ,10' wide on compacted subgrade. Additionally, provide a 2-foot-wide strip of the same crushed aggregate along the inside of the fence line, continuous for the full length of the fence.

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Callout Remove & Replace Existing 12' Gate

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Callout Install RPP Liner System

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Callout Edge of Existing Maintenance Road & Work Limits

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Text Box 70' 00"

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137' 00"

Area Measurement 11,667.2 sf

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Area Measurement 3,767.62 sf

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Area Measurement 7,735.09 sf

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Callout Maintenance Road: Place 3 inches of 3/4-inch Crushed Aggregate ,10' wide on compacted subgrade.

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Callout Install RPP Liner System

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Text Box Existing Fence & Work Limits

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Length Measurement 61'-11 3/4"

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Length Measurement 136'-5 1/4"

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Length Measurement 10'-0"

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Length Measurement 10'-0"

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Length Measurement 10'-0"

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Length Measurement 10'-0"

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Text Box 136' 00"

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62' 00"

13 - Photo - Front Gate - Buckhorn Oxidation Pond

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Orland CA

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Buckhorn Oxidation Pond

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f-------�10�•-�o�•�M=AX�S�PA=C=IN�G _____ ___, TYPICAL FENCE AND CORNER PANEL ELEVATION

SCALE: 1" = 1'-0"

TYPICAL 3 STRAND BARBED WIRE AND SINGLE EXTENSION ARM CONFIGURATION

SCALE: 1" = 1'-0"

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TYPICAL FENCE AND BRACED PANEL ELEVATION

SCALE: 1" = 1'-0"

PLAN - ROUND POST

9-GAGE STEEL TIE WIRES

(2'-0" O.C. MAX.)

ELEVATION

TOP OR BRACE RAIL ATTACHMENT PLAN - "H" POST

FITTINGS NOTES

9-GAGE STEEL TIE WIRE

(15" O.C. MAX. AND

WITHIN 4" FROM TOP AND

BOTTOM OF FABRIC)

\_ SECURE SIDE

3/8" DIA CARRIAGE BOLTS

1 � 6 ,-FENCE FABRIC

LINE POST

BRACE BAND

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(15" O.C. MAX. AND

WITHIN 4" FROM TOP AND

FENCE FABRIC

1. METRIC DIMENSIONS

ARE NOMINAL

EQUIVALENTS TO U.S.

DIMENSIONS. FENCE FABRIC

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CORNER OR END OR GATE POST

ELEVATION

CORNER OR END POSTS

SCALE: 1 1/2" = 1'-0"

ELEVATION - ROUND POST

LINE POST DETAILS

SCALE: 1 1 /2" = 1'-0"

ELEVATION - "H" POST ELEVATION - ROUND POST

2. ALL FITTINGS MATERIAL

SHALL BE AS SPECIFIED.

Oxidation Pond Liner Replacement Project Black Butte Dam & Lake

Orland CA

Eagle Pass Oxidatiion Pond

Fence Detail

ELEVATION - "H" POST BOTTOM RAIL OPTION

GRAPHIC SCALES

1" = 1'-0"

1 1/2" = 1·-0·

0 6" 1'

0 4" 8"

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Callout Water Draft Area

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Callout Vehicle Travelway

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Callout Eagle Pass Oxidation Pond

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Callout Orland Butte Oxidation Pond

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Text Box Water Draft Location - Buckhorn Oxidation Pond

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Text Box Water Draft Location - Eagle Pass Oxidation Pond

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Text Box Water Draft Location - Orland Butte Oxidation Pond

Cloud

Dave 2 Plans & Photos - Black Butte Ox Pond Liners 31 JUL 26

Water Map 2

File details come from the government source that posted it. Updated Aug 5, 2026.