CO FLAP LPL 10(1) Lake Nighthorse Access Final Utility Test Hole Report.pdf

Prepared By:

1658 Cole Boulevard, Suite 140

Lakewood, CO 80401

October 2024

Test Hole Report

Lake Nighthorse

01/16/2025

Test Hole Report: Lake Nighthorse

Table of Contents

Introduction

Disclaimer and Certification

Project Summary

Site Location

SUE Scope and Project Limits

SUE Survey Information

Records Data Collection

SUE Field Processes and Equipment

Test Hole Survey

Office Drafting Software

SUE Field Investigations and Findings

QLA Test Hole Findings

Conclusion

Reference

ASCE Standard Guidelines for Utility Data Acquisition - Quality Level Definitions

Acronyms and Initializations

Material Types

Utility Types

Other

Appendix A – SUE QLA Investigation (Test Hole Report)

Appendix B – FastTrack Record

Table 1: Table of Survey Control Points

Table 2: Summary of Utility Records Research

Figure 1: SUE QLD Investigation Limits

Goodbee & Associates, Inc.

Introduction

The purpose of this Test Hole Report is to convey the process and findings of the Subsurface

Utility Engineering (SUE) QLA test hole excavation efforts. This report contains information about the utility investigation that may not otherwise be conveyed in the SUE deliverables, assists the end user in understanding the existing utilities and risks, provides recommendations to address data deficiencies, and complements the SUE base file. Utilities are depicted in the SUE base file in accordance with their achieved quality levels as defined in the American Society of

Civil Engineers, Utility Engineering & Surveying Institute, Construction Institute

(ASCE/UESI/CI) ASCE Standard 38-22, Standard Guideline for Investigating and Documenting

Existing Utilities.

This Test Hole Report and SUE investigation were performed for WSP (Owner) under a contract agreement with the Federal Highway Administration, Central Federal Lands Division (Client) to support the design prime contract between the Client and Owner. The purpose of this project is to rehabilitate the Lake Nighthorse Road.

The users of this data are reminded that this information is for design purposes only. Existing utility locations do not supersede Colorado 811 demarcations of underground utilities or relieve the contractor of the legal requirement to contact Colorado 811 prior to excavation.

Disclaimer and Certification

Existing utilities are depicted in this report and in accordance with the achieved Quality Levels for each utility as defined in ASCE Standard 38-22, Standard Guideline for Investigating and

Documenting Existing Utilities and as required by C.R.S. 9-1.5-101 et. Seq.

As it applies to the depiction of existing underground utility information, the stamp and seal on this report reflect only that depiction of the existing underground utility meets the noted ASCE

38 quality levels. Goodbee & Associates (Goodbee) will not be held responsible for the depiction of any changes in field conditions beyond the geophysical field investigations completed October 2024. Utilities may have been installed, removed, or adjusted after the field work was completed.

Reliance upon these data for risk management purposes during bidding does not relieve the excavator or utility owner from following all applicable utility damage prevention statutes, policies and/or procedures during excavation. It is important that the contractor investigates and understands the scope of work between the project owner and their engineer regarding the scope and the limits of the utility investigations leading to these utility depictions.

This Test Hole report for the Lake Nighthorse project was prepared under my direct supervision in accordance with ASCE standard 38-22 and scope of work.

By:______________________________

Engineer of Record

01/16/2025

Central Federal Lands Highway Division

12300 W Dakota Avenue

Lakewood Co, 80228

Utility Data Quality

Level Certification

UTILITY DATA QUALITY LEVEL CERTIFICATION

To: Federal Highway Administration Date: 01/21/25

12300 West Dakota Avenue Lakewood, CO 80228 Tammy Eggers, Project Manager

From: Mason Michalec (field inspector)

Project: CO FLAP LPL 10(1) Lake Nighthorse Subject: Utility Data Quality Certification (Indicate A, B, C or D)

Quality Level D: I hereby certify that the following tasks have been completed:

• Records and Information Research

• Records Collection

• Records Review

• Include Aerial or Ground-Mounted Facilities

• Compilation and Presentation of Data

Quality Level C: I hereby certify that the following tasks have been completed:

• Inclusive of QL D Tasks

• Identification of Surface Utility Features

• Include Aerial or Ground-Mounted Facilities

• Surveys

• Correlation, Interpretation, and Presentation of' data, Resolution of Discrepancies

Quality Level B: I hereby certify that the following tasks have been completed:

• Inclusive of QL C Tasks

• Line Detection and Marking

• Surveys

• Correlation, Interpretation, and Presentation of Data; Resolution of Discrepancies

Quality Level A: I hereby certify that the following tasks have been completed:

• Inclusive of QL B Tasks.(Not Scoped)

• Selection of Test Locations.

• Selection of Method.

• Compliance with UNCL Requirements.

• Excavation of Test Holes.

• Collection, Recording, and Presentation of Data.

Lakewood Co, 80228

• Site Restoration.

• Interpretation of Data and Resolution of Discrepancies.

Signed: (name) (title)

(organization)

Encl:

Utility Data Quality Certification Matrix cc: (Distribution by FHWA Project Manager) FHWA Right of Way Engineer (original for archives) FHWA Lead Designer

Principal Engineer

Lakewood Co, 80228

Definitions for Utility Data Quality Certification

QUALITY LEVEL D TASKS

Tasks leading to QL D include:

A. Records and Information Research.

Conduct appropriate investigations, e.g. owner records, DOT records, UNCL records, County records, personal interviews, visual inspections, etc., to help identify utility owners that may have facilities within the project limits or that may be affected by the project.

B. Records Collection.

Collect applicable records (e.g., utility owner base maps, "as built" or record drawings, permit records, field notes, geographic information system data, oral histories, etc.) on the existence and approximate location of existing involved utilities.

C. Records Review.

Review records for: evidence or indication of additional available records;

duplicate or conflicting information; need for clarification.

D. Include Aerial or Ground-Mounted Facilities.

Include records research, identification, and depiction of aerial or ground mounted utility facilities in QL D tasks if specified (see "Miscellaneous Tasks").

E. Compilation and Presentation of Data.

1. Transfer information on all involved utilities to appropriate plan sheets, electronic files, and/or other documents as required or directed by DOT.

2. Exercise professional judgment to resolve conflicting information.

3. For information depicted, indicate: utility type and ownership; date of depiction; quality level(s); end points of any utility data; line status (e.g., active, abandoned, out of service); line size and condition; number of jointly buried cables; and encasement.

QUALITY LEVEL C TASKS

Tasks leading to QL C include:

A. Inclusive of QL D Tasks.

Perform tasks as described for QL D. There is no prescribed order in which QL D and C tasks must be performed.

B. Identification of Surface Utility Features.

Identify surface features, from project topographic data (if available) and from field observations, that are surface appurtenances of subsurface utilities.

C. Aerial or Ground-Mounted Facilities.

Include survey and correlation of aerial or ground-mounted utility facilities in QL C tasks if specified (see "Miscellaneous Tasks").

D. Surveys.

Lakewood Co, 80228

1. Survey surface features of subsurface utility facilities or systems, if such features have not already been surveyed by a registered professional. If previously surveyed, check survey data for accuracy and completeness.

2. The survey shall also include (in addition to subsurface utility features visible at the ground surface): determination of invert elevations of any manholes and vaults; sketches showing interior dimensions and line connections of such manholes and vaults; any surface markings denoting subsurface utilities, furnished by utility owners for design purposes.

3. Confined Space Procedures: Whenever the work requires the entry of personnel into confined spaces (including but not limited to manholes, vaults, and pipes), comply with applicable OSHA (Occupational Safety and Health Administration, U.S. Department of Labor) procedures and requirements.

E. Correlation, Interpretation, and Presentation of Data; Resolution of Discrepancies.

1. Exercise professional judgment to correlate data from different sources, and to resolve conflicting information.

2. Update (or prepare) plan sheets, electronic files, and/or other documents to reflect the integration of QL D and QL C information.

3. Recommend follow-up investigations (e.g., additional surveys, consultation with utility owners, etc.) as may be needed to further resolve discrepancies.

4. As appropriate, amend the indicated quality level of depicted information.

QUALITY LEVEL B TASKS

Tasks leading to QL B include:

A. Inclusive of QL C Tasks.

Perform tasks as described for QL C. There is no prescribed order in which QL C and B tasks must be performed.

B. Line Detection and Marking.

1. Select and apply appropriate surface geophysical method($ to search for and detect subsurface utilities within the project limits, and/or to trace a particular utility line or system.

2. Based on an interpretation of data, mark the indications of utilities on the ground surface, for subsequent survey. Utilize paint or other method acceptable to DOT for marking of lines.

3. Utilize the uniform color code of the American Public Works Association for marking of utilities.

4. Unless otherwise directed, mark centerline of single-conduit lines, and outside edges of multi-conduit systems.

5. Unless otherwise approved, maintain horizontal accuracy of +/- 1.5 feet (450

mm) in the marking of lines.

6. As an alternative to the physical marking of lines, the Consultant may, with DOT'S approval, utilize other means of data collection, storage, retrieval, and

Lakewood Co, 80228 reduction that enables the correlation of surface geophysical data to the project's survey control.

C. Surveys.

1. Survey markings that indicate the presence of a subsurface utility.

2. Perform surveys to a horizontal accuracy consistent with applicable DOT survey standards. Reference surveys to the project's survey control.

3. If requested, record depth information as may be indicated by the particular detection method used.

D. Correlation, Interpretation, and Presentation of Data; Resolution of discrepancies.

1. Exercise professional judgment to correlate data from different sources, and to resolve conflicting information.

2. Update (or prepare) plan sheets, electronic files, and/or other documents to reflect the integration of QL D, QL C, and QL B information.

3. Recommend follow-up investigations (e.g., additional surveys, consultation

QUALITY LEVEL A TASKS

Tasks leading to QL A include:

A. Inclusive of QL B Tasks.

Perform tasks as described for QL B. There is no prescribed order in which QL B and A tasks must be performed.

B. Selection of Test Locations.

1. DOT may require QL A data where the precise horizontal and vertical location of utilities, obtained by exposure and survey of the utility at specific points, is needed for conflict assessment resolution purposes.

2. The Consultant may recommend test locations based on the requirements of the project and on existing subsurface utility information.

C. Selection of Method.

1. When available, verifiable information on previously exposed and surveyed utilities (such as survey records during utility line construction) shall be furnished in lieu of new excavation, exposure, and survey at that same point, or at a suitable nearby point.

2. Otherwise, when utility lines must be exposed and surveyed at specified locations, the Consultant shall use minimally intrusive excavation techniques, acceptable to DOT, that ensure the safety of the excavation, the integrity of the utility line to be measured, and that of other lines which may be encountered during excavation.

3. DOT intends that excavation shall be by means of air- or water-assisted vacuum excavation equipment manufactured specifically for the purpose.

Provided, however, that approval of water-assisted vacuum excavation may be

Lakewood Co, 80228 subject to additional findings by DOT that such method poses minimal risk of damage to the highway facility or utility lines.

D. Compliance with UNCL Requirements.

1. The Consultant shall comply with all applicable provisions of [State Law] when planning or performing excavations at utility test hole sites.

2. Compliance actions include, but are not limited to: notify owners or operators of underground utility facilities at least two (2) business days prior (not including the day of actual notice) to making or beginning excavations in the vicinity of such facilities; call the UNCL at for the marking of member utilities; contact non-member utilities directly; coordinate with utility owner representatives as required for inspection or other on-site assistance;

immediately cease excavation work and report any resultant utility line damage to owner.

E. Excavation of Test Holes.

1. Clear the test borehole area of surface debris.

2. In paved areas, neatly cut and remove existing pavement, which cut shall not exceed 225 square inches (0.15 square meters) unless otherwise approved.

3. Excavate the test hole by the method(s) acceptable to DOT and to the standards set forth herein (see also "Selection of Method" above). The nominal diameter of the test hole shall not exceed 15 inches (375 mm) unless otherwise approved.

4. Expose the utility only to the extent required for identification and data collection purposes.

5. Avoid damage to lines, wrappings, coatings, cathodic protection or other protective coverings and features.

6. Hand-dig as needed to supplement mechanical excavation and to ensure safety.

7. Revise the test hole location as necessary to positively expose the utility.

8. Store excavated material for re-use or disposal, as appropriate.

F. Collection, Recording, and Presentation of Data.

Measure and/or record the following information on an appropriately formatted test borehole data sheet that has been sealed and dated by the Consultant:

1. Elevation of top and/or bottom of the utility tied to the project datum, to a vertical accuracy of +I- 0.05 feet (1 5 mm).

2. Elevation of existing grade over utility at test-hole.

3. Horizontal location referenced to project coordinate datum, to a horizontal accuracy consistent with applicable DOT survey standards.

4. Field sketch showing horizontal location referenced to a minimum of three (3) swing ties to physical structures existing in the field and shown on the project plans.

5. Approximate centerline bearing of utility line.

6. Outside diameter of pipe, width of duct banks, and configuration of non-encased multi-conduit systems.

Lakewood Co, 80228

7. Utility structure material composition, when reasonably ascertainable.

8. Identity of benchmarks used to determine elevations.

9. Utility facility condition.

10. Pavement thickness and type when applicable.

11. Soil type and site conditions.

12. Identity of utility owner/operator.

13. Other pertinent information as is reasonably ascertainable from test hole.

G. Site Restoration.

1. Replace bedding material around exposed utility lines in accordance with owner's specifications or as otherwise directed or approved.

2. Backfill and compact the excavation in a manner acceptable to DOT. If approved, re-use excavated material with appropriate moisture/density control.

3. Install color-coded warning ribbon within the backfill area and directly above the utility line.

4. As applicable, provide permanent ,pavement restoration within the limits of the original cut using materials, compaction, and pavement thickness acceptable to DOT.

5. Repair or replace backfill or pavement that fails (i.e., subsidence and/or loss of pavement material) within two (2) years of the original restoration work.

6. For excavations in unpaved areas, restore disturbed area as nearly as practicable to pre-existing conditions.

7. Furnish and install permanent surface marker (e.g., P.K. nail, peg, steel pin, or hub) directly above the centerline of the structure and record the elevation of the marker.

H. Interpretation of Data and Resolution of Discrepancies.

1. Exercise professional judgment to correlate data from different sources, and to resolve conflicting information.

2. Update plan & profile sheets, electronic files, and/or other documents to reflect the integration of QL D, QL C, QL B, and QL A information.

3. Recommend follow-up investigations (e.g., additional surveys, consultation

Project Summary

Site Location

Project location is 0.8 miles along Lake Nighthorse Road from the Lake Nighthorse entrance station to the boat ramp parking lot.

SUE Scope and Project Limits

Goodbee was scoped for QLD underground and aerial utility investigations within the project site limits and 8 Quality Level A (QLA) test holes.

General project boundaries for the utility investigation effort were identified by the Client. The site is bounded as shown in Figure 1.

Some utilities may be depicted outside the limits of investigation for context. However, this is not an indication that all existing utilities beyond the limits of investigation are depicted in the

SUE base file.

Figure 1: SUE QLD Investigation Limits

Test Hole Report Lake Nighthorse

SUE Survey Information

The project survey information, including coordinate system, control points, and base file were provided by the US Department of Transportation, Federal Highway Administration, Central

Federal Lands Highway Division in 30% plans for CO FLAP LPL 10(1) (Table 1).

Project coordinates are Colorado State Plane South Zone (503) NAD83 (2011) coordinates using Geoid 18. Units are US Survey Foot

Datum: NAD83

Zone: CO South (0503)

Geoid: 18

OPUS Epoch Date: 2010.0000

Vertical Datum: NAVD88

Table 1: Table of Survey Control Points

Records Data Collection

The Colorado 811 website was used to determine the known utility companies in the project vicinity. The Subsurface Utility Engineering tickets (B323701284, B323701268, and

B323701291) for the project were submitted on 08/25/2024.

Table 2 summarizes the utility records research completed for utilities within the QLD utility investigation project limits.

Fast Track Communications was listed on the 811 Ticket as having utilities in the area. Email correspondence confirmed that their facilities are abandoned with no plans to utilize them in the future.

All utility companies noted in Table 2 have been contacted by Goodbee and were provided an opportunity to review the utility mapping and provide additional information.

POINT

NO.

PROJECT

COORDINATES ELEV. DESCRIPTION

NORTHING EASTING

2000 1215321.25 2299673.3 6918.32 WCI ALUM CAP

2001 1215542.35 2299483.3 6899.76 NAIL/WASHER

2002 1218079.65 2300285.55 6985.72 WCI ALUM CAP

2003 1218267.86 2300302.38 6980.94 WCI ALUM CAP

2004 1214756.85 2299640.3 6914.54 WCI ALUM CAP

Table 2: Summary of Utility Records Research

UTILITY OWNER

811 TICKET RESPONSE

DATE RECORDS

RECEIVED B323701284 B323701268 B323701291

ATMOS ENERGY C-NC C-NC C-NC 8/25/2023

FAST TRACK COMMUNICATIONS POSITIVE POSITIVE POSITIVE 9/11/2023

LA PLATA ELECTRIC ASSOCIATION POSITIVE POSITIVE POSITIVE 9/11/2023

MID AMERICA - ENTERPRISE

PRODUCTS C-NC N/A C-NC 8/25/2023

NORTHWEST PIPELINE - WILLIAMS

GAS PIPELINE C-NC N/A C-NC 8/25/2023

ACRONYM RESPONSE DESCRIPTION

DNR DID NOT RESPOND UTILITY OWNER DID NOT RESPOND TO 811 TICKET

C-NC CLEAR - NO CONFLICT UTILITY OWNER RESPONDED TO 811 TICKET THAT THEIR

FACILITY IS CLEAR OF THE PROJECT AREA AND NOT IN

CONFLICT

N/A NOT APPLICABLE UTILITY OWNER NOT INCLUDED IN 811 TICKET

POSITIVE POSITIVE RESPONSE

RECEIVED

UTILITY OWNER CONFIRMED FACILITIES BY PROVIDING

RECORDS OR MARKING THEIR FACILITIES IN THE FIELD

SUE Field Processes and Equipment

Goodbee was scoped to complete SUE QLD and QLA investigations. SUE QLB geophysical investigations were beyond our scope of work. Geophysical instruments, such as multifrequency

Radio Detection equipment, were used prior to test hole excavation to better identify the horizontal location of utility lines before digging.

Test Hole Survey

The provided Control was checked by Goodbee using a Trimble R12i GPS receiver utilizing

Trimble RTX correction services and a Trimble TSC-5 Data Collector. Designating marks were tied to the project survey datum with an accuracy of 0.2 ft(60mm) horizontal.

QLA test holes were surveyed by Goodbee using a Trimble S5 Robotic Total Station. SUE elevation data were tied to the project survey datum with an accuracy of 0.1 ft (30 mm) vertical and to 0.2 ft (60 mm) horizontal.

Office Drafting Software

OpenRoads Designer was used to develop the 2D utility base file.

SUE Field Investigations and Findings

Goodbee performed the geophysical investigation for this project in accordance with its standard of practice, which generally conforms to the ASCE standard 38-22 and aligns with acceptable industry standards.

Test Hole observations/investigation and survey field work was performed between 10/07/2024 and 10/08/2024. Goodbee will not be responsible for the depiction of any changes in field conditions beyond 10/08/2024, including utilities and appurtenances that were installed, removed, or adjusted after the field work was complete.

General/Field Conditions

During QLA Test Hole observations, active construction was underway at the main entrance to Lake Nighthorse. This construction did not impede any of Goodbee’s efforts.

QLA Test Hole Findings

Eight test holes were included in the project scope of work. 8 test holes were completed and are summarized in Appendix A – SUE QLA Investigation (Test Hole Report).

The following summaries are provided to draw attention to special conditions such as discrepancies between field findings and records, unusual utilities, and any subsurface conditions that hindered the ability to perform the test hole excavation.

La Plata Electric o TH001- TH004, and TH006 - Three two-inch conduits were observed in these test holes.

All three conduits were confirmed to be owned by La Plata Electric.

Target utility not found in test hole o TH008 – Target utility was not found due to ground conditions. Electronic depth suggests a range of 15 feet or greater.

o TH007 – Target utility was not found due to ground conditions. Electronic depth suggests a range of 20 feet or greater o TH005 – Target utility was not found due to equipment restraints. Utility Marking tape was found near expected depth and the red plastic marking tape was consistent with the findings in TH001-TH004 and TH006.

Fiber Lines o No fiber optic lines/features were observed in the test holes or marked by CO 811 paint/marks. 811 paint was present for electric in the area, but no signs of fiber were present on site.

o Fiber line locations were not confirmed during SUE QLA investigations. It is assumed that two fiber owners may be present in the project area: BOR and FastTrack.

BOR noted they have an active fiber line, but no surface features (pedestals, handholes, or paint markings) were found in the field. BOR was not able to provide records of their facilities.

FastTrack provided records of their facilities and a representative from

FastTrack indicated that these facilities are likely not in use. FastTrack has elected not to further investigate, will not be relocating, and understands that future work could impact their facilities. See Appendix B for record data.

Conclusion

Reliance upon these data for risk management purposes during bidding does not relieve the excavator or utility owner from following all applicable utility damage prevention statutes, policies, and/or procedures during excavation. It is important that the contractor investigates and understands the scope of work between the project owner(s) and their engineer regarding the scope and limits of the utility investigations leading to these utility depictions.

Utility attribute information such as utility owner name, pipe size, and material are based on information gathered from available records, from discussion with utility owners, or as directly observed during Quality Level A (QLA) test hole excavation. In some cases, record information may be obsolete or inaccurate.

It is recommended that the owner, designer, and/or contractor:

• Confirm if new utility facilities have been installed since the SUE field data investigations.

• For utilities document in records but not detected during field work (QLD), it is recommended that the excavator proceeds with an abundance of caution and takes proper measures to notify utility owners through Colorado 811 prior to commencement of work.

• The contractor should follow C.R.S. 9-1.5-101 et. Seq.

• Contractor may encounter fiber during construction. Continued coordination with

FastTrack and BOR are recommended to verify location of fiber facilities prior to excavation.

Reference

ASCE Standard Guidelines for Utility Data Acquisition - Quality Level Definitions

Quality level D (QLD): a value assigned to a utility segment or utility feature not visible at the ground surface whose estimated position is judged through utility records, information from others, from visual clues such as pavement cuts, obvious trenches, or existence of service. A

QLD data attribute is assigned to a utility segment or utility feature after review and compilation of existing records, oral recollections, one-call (Colorado 811) or “private-locate” markings, managed data repositories, context with other achieved utility quality levels, and/or other evidence of existence. QLD data is more uncertain than QLC, QLB, and QLA. QLD data is less uncertain than utilities documented without any utility quality level barring a professional's statement of fact to the contrary. Quality level C (QLC): “information obtained by surveying and plotting visible above-ground utility features and by using professional judgement in correlating this information to Quality Level D information.”

Quality level C (QLC): a value assigned to a utility segment not visible at the ground surface whose estimated position is judged through correlating utility records or similar evidence to utility features, visible aboveground and/or underground. The utility anchor point on the utility features shall be tied to the project survey datum with an accuracy of 0.2 ft (60 mm) horizontal.

A QLC value judgment is assigned to a utility segment by using visible utility features to approximate the position of a utility segment between or in proximity to the visible utility features and in context with other achieved utility quality levels. QLC only pertains to the underground utility segment(s), not the utility feature(s). QLC data is more certain than QLD and is more uncertain than QLB and QLA.

Quality level B (QLB): a value assigned to a utility segment or subsurface utility feature whose existence and horizontal position is based on geophysical methods combined with professional judgement and whose location is tied to the project survey datum. A QLB value is assigned to a utility segment when the following conditions are met:

(1) the utility segment was detected through the application of appropriate geophysical methods;

(2) the geophysical signal was judged to be reliable;

(3) the interpreted position was judged based on knowledge and use of geophysical science, utility design and installation practices, available records, visual features, and influence of site conditions; and

(4) the source designation has been tied to the project survey datum with an accuracy of 0.2 ft

(60 mm) horizontally. QLB is more uncertain than QLA and more certain than QLC or QLD.

Quality level A (QLA): a value assigned to that portion (x-, y-, and z-geometry) of a utility segment or subsurface utility feature that is directly exposed and measured and whose location and dimensions are tied to the project survey datum. The utility segment or subsurface utility feature shall be tied to the project survey datum with an accuracy of 0.1 ft (30 mm) vertical and to 0.2 ft (60 mm) horizontal for the measurements of the outside limits of the utility feature or utility segment that is exposed. Other measurable, observable, and judged utility attributes are also recorded. If obtained by means of a test hole observation, a verification effort is made, and professional judgment is used to assert that the exposed infrastructure is indeed the sought target.

The assignment of QLA conveys the lowest level of relative (nonquantifiable) uncertainty of measurable and judged attributes and location. QLA is more certain than QLB, QLC, or QLD.

Acronyms and Initializations

Material Types

PVC - POLYVINYL CHLORIDE

BOX - CONCRETE BOX CULVERT

CIP - CAST IRON PIPE

CMP - CORRUGATED METAL PIPE

CONC - CONCRETE ENCASED

COP - COPPER

DBC - DIRECT BURIED CABLE

DIP - DUCTILE IRON PIPE

FBE - FUSE BONDED EPOXY

FG - FIBERGLASS

I - IRON

LCPC - LINED CYLINDRICAL PRESTRESSED CONCRETE

PE - POLYETHYLENE

RCP - REINFORCED CONCRETE PIPE

STL - STEEL

SW - STEEL WELDED

VCP - VITRIFIED CLAY PIPE

Utility Types

DUCT - DUCT BANK

E - ELECTRIC

FM - FORCE MAIN

FO - FIBER OPTIC CABLE

G - GAS

IRR - IRRIGATION

ITS - INTELLIGENT TRANSPORTATION SYSTEMS

IP - INTERMEDIATE PRESSURE GAS

NPW - NON-POTABLE WATER

PL - PIPELINE

RW - RECLAIMED WATER

SAN - SANITARY SEWER

STM - STORM SEWER

T - TELEPHONE

TR - TRAFFIC

TS - TRAFFIC SIGNAL

TV - CABLE TELEVISION

W - WATER

Other

ABND - ABANDONED

HP - HIGH PRESSURE

IP - INTERMEDIATE PRESSURE

Appendix A – SUE QLA Investigation (Test Hole Report)

TH001 - UTILITY TEST HOLE REPORT

PROJECT NAME: LAKE NIGHTHORSE ROAD

PROJECT NO: 6856LNH

TEST HOLE DATE: 10/8/2024

OBSERVED BY: MASON MICHALEC

UTILITY DATA

UTILITY OWNER: LA PLATA ELECTRIC DIRECT BURY/CONDUIT: CONDUIT

UTILITY TYPE: E DUCT/MULTI CONDUIT: MULTI CONDUIT

UTILITY SIZE: 2” (x3) SURFACE MATERIAL: NATURAL GROUND

UTILITY MATERIAL: PE SURFACE THICKNESS: N/A

DEPTH TO TOP: 2.3 FEET DIRECTION: NW/SE

NOTES: NO SIGN OF ANY FIBER

SURVEY DATA

NORTHING: 1215051.71 GROUND ELEVATION: 6896.6

EASTING: 2299602.97 TOP OF PIPE ELEVATION: 6894.3

PHOTOS

TH001 PROJECT NO: 6856LNH

Photo #1 Photo #2

Photo #3 Photo #4

Photo #5

TH002 - UTILITY TEST HOLE REPORT

PROJECT NO: 6856LNH

TEST HOLE DATE: 10/8/2024

OBSERVED BY: MASON MICHALEC

UTILITY DATA

UTILITY OWNER: LA PLATA ELECTRIC DIRECT BURY/CONDUIT: CONDUIT

UTILITY TYPE: E DUCT/MULTI CONDUIT: MULTI CONDUIT

UTILITY SIZE: 2” (x3) SURFACE MATERIAL: NATURAL GROUND

UTILITY MATERIAL: PE SURFACE THICKNESS: N/A

DEPTH TO TOP: 4.5 FEET DIRECTION: N/S

NOTES: NO SIGN OF ANY FIBER

SURVEY DATA

NORTHING: 1215369.53 GROUND ELEVATION: 6898.7

EASTING: 2299606.43 TOP OF PIPE ELEVATION: 6894.2

TH002 PROJECT NO: 6856LNH

Photo #5 Photo #6

TH003 - UTILITY TEST HOLE REPORT

PROJECT NO: 6856LNH

TEST HOLE DATE: 10/8/2024

OBSERVED BY: MASON MICHALEC

UTILITY DATA

UTILITY OWNER: LA PLATA ELECTRIC DIRECT BURY/CONDUIT: CONDUIT

UTILITY TYPE: E DUCT/MULTI CONDUIT: MULTI CONDUIT

UTILITY SIZE: 2” (x3) SURFACE MATERIAL: NATURAL GROUND

UTILITY MATERIAL: PE SURFACE THICKNESS: N/A

DEPTH TO TOP: 2.7 FEET DIRECTION: NW/SE

NOTES: NO SIGN OF ANY FIBER

SURVEY DATA

NORTHING: 1215481.41 GROUND ELEVATION: 6900.7

EASTING: 2299571.65 TOP OF PIPE ELEVATION: 6898.0

TH003 PROJECT NO: 6856LNH

TH004 - UTILITY TEST HOLE REPORT

PROJECT NO: 6856LNH

TEST HOLE DATE: 10/8/2024

OBSERVED BY: MASON MICHALEC

UTILITY DATA

UTILITY OWNER: LA PLATA ELECTRIC DIRECT BURY/CONDUIT: CONDUIT

UTILITY TYPE: E DUCT/MULTI CONDUIT: MULTI CONDUIT

UTILITY SIZE: 2” (x3) SURFACE MATERIAL: NATURAL GROUND

UTILITY MATERIAL: PE SURFACE THICKNESS: N/A

DEPTH TO TOP: 4.5 FEET DIRECTION: NW/SE

NOTES: NO SIGN OF ANY FIBER

SURVEY DATA

NORTHING: 1215720.78 GROUND ELEVATION: 6900.1

EASTING: 2299407.4 TOP OF PIPE ELEVATION: 6895.6

TH004 PROJECT NO: 6856LNH

TH005 - UTILITY TEST HOLE REPORT

PROJECT NO: 6856LNH

TEST HOLE DATE: 10/8/2024

OBSERVED BY: MASON MICHALEC

UTILITY DATA

UTILITY OWNER: LA PLATA ELECTRIC DIRECT BURY/CONDUIT: N/A

UTILITY TYPE: E DUCT/MULTI CONDUIT: N/A

UTILITY SIZE: DNF SURFACE MATERIAL: ASPHALT

UTILITY MATERIAL: DNF SURFACE THICKNESS: 3 INCHES

DEPTH TO TOP: 10 FEET DIRECTION: N/A

NOTES:

NO SIGNS OF ANY FIBER. EXCAVATED TO 10'. MAX DEPTH AIR VAC TRUCK COULD EXCAVATE.

UTILITY MARKING TAPE FOUND AT 10'. SAME TAPE ALSO FOUND IN TH001-TH004

SURVEY DATA

NORTHING: 1215965.82 GROUND ELEVATION: 6906.5

EASTING: 2299274.19 TOP OF PIPE ELEVATION: 6896.5

DNF

TH005 PROJECT NO: 6856LNH

TH006 - UTILITY TEST HOLE REPORT

PROJECT NO: 6856LNH

TEST HOLE DATE: 10/10/2024

OBSERVED BY: MASON MICHALEC

UTILITY DATA

UTILITY OWNER: LA PLATA ELECTRIC DIRECT BURY/CONDUIT: CONDUIT

UTILITY TYPE: E DUCT/MULTI CONDUIT: MULTI CONDUIT

UTILITY SIZE: 2” (x3) SURFACE MATERIAL: NATURAL GROUND

UTILITY MATERIAL: PE SURFACE THICKNESS: N/A

DEPTH TO TOP: 9.2 FEET DIRECTION: NE/SW

NOTES: NO SIGN OF ANY FIBER

SURVEY DATA

NORTHING: 1216906.27 GROUND ELEVATION: 6909.6

EASTING: 2299534.78 TOP OF PIPE ELEVATION: 6900.4

TH006 PROJECT NO: 6856LNH

Photo #5

TH007 - UTILITY TEST HOLE REPORT

PROJECT NO: 6856LNH

TEST HOLE DATE: 10/8/2024

OBSERVED BY: MASON MICHALEC

UTILITY DATA

UTILITY OWNER: LA PLATA ELECTRIC DIRECT BURY/CONDUIT: N/A

UTILITY TYPE: E DUCT/MULTI CONDUIT: N/A

UTILITY SIZE: DNF SURFACE MATERIAL: ASPHALT

UTILITY MATERIAL: DNF SURFACE THICKNESS: 0.8 INCHES

DEPTH TO TOP: 7.8 FEET DIRECTION: N/A

NOTES:

EXCAVATED TO 7.6' DUE TO HARD COMPACTED GROUND AND +20’ ELECTRONIC LOCATE. NO SIGN OF ANY FIBER. "TH008" ON PLACARD SHOULD BE "TH007." ALL OTHER DATA SHOWN CORRECTLY

SURVEY DATA

NORTHING: 1217025.47 GROUND ELEVATION: 6915.4

EASTING: 2299644.1 TOP OF PIPE ELEVATION: 6907.6

TH007 PROJECT NO: 6856LNH

TH008 - UTILITY TEST HOLE REPORT

PROJECT NO: 6856LNH

TEST HOLE DATE: 10/8/2024

OBSERVED BY: MASON MICHALEC

UTILITY DATA

UTILITY OWNER: LA PLATA ELECTRIC DIRECT BURY/CONDUIT: N/A

UTILITY TYPE: E DUCT/MULTI CONDUIT: N/A

UTILITY SIZE: DNF SURFACE MATERIAL: NATURAL GROUND

UTILITY MATERIAL: DNF SURFACE THICKNESS: N/A

DEPTH TO TOP: 9 FEET DIRECTION: N/A

NOTES: EXCAVATED TO 9'. STOPPED DUE TO GROUND CONDITIONS AND +15’ ELECTRONIC DEPTH.

SURVEY DATA

NORTHING: 1217131.42 GROUND ELEVATION: 6924.9

EASTING: 2299716.88 TOP OF PIPE ELEVATION: 6915.9

TH008 PROJECT NO: 6856LNH

Appendix B – FastTrack Record