Project Review Comments

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Project Name
Town of Ramah Wastewater System 1041
Description
Expand wastewater services to include removal of a lagoon and septic tank, and add 3 new lagoons, and a lift station 15,000gpd peak
Location
Parcels
100000088 100000088 1101107001 1101107001
Applicant
Element Engineering
KARL DUFFIELD ( karld@elementengineering.net )
(303) 518-2361
KARL DUFFIELD ( karld@elementengineering.net )
(303) 518-2361
File Number
AASI221
Project Manager
Ryan Howser
Status
Closed
Created
1/25/2022 5:11:17 PM

View: Project Documents



Review Comments (29)

Link Agency Comment
Colorado Geological Survey
2/15/2023 1:07:42 PM
Kumar’s Geologic Hazards Study, Ramah Wastewater Treatment Plan (Kumar & Associates, Inc., January 6, 2023), addresses our previous comments and provides a valid description of the geology and geologic hazards associated with the site. CGS agrees with Kumar’s recommendation (page 8), “…a buffer of at least 50 feet from the existing special flood hazard areas would reduce the risk from potential flooding.” Provided Kumar’s recommendations are strictly adhered to and incorporated in the design of the wastewater system, CGS has no objection to the approval of the project as proposed. We offer the following comments.

Kumar states on page 4 of their Geotechnical Engineering Study (Kumar & Associates, Inc., April 22, 2022), “The clay soils encountered in our study will have relatively low permeability….An engineered liner system should be implemented at the basin of each pond if specific permeability limits are required for this project.” Sheet 25 of the Pond Details (Element Engineering LLC, March 2022) indicates that 45-mil reinforced polypropylene or 40-mil reinforced composite geomembrane will be installed within the pond. Kumar should review the plans and details (as recommended on page 14 of their report) for the wastewater system and update/modify their recommendations, if necessary.

Submitted 2/15/2023 by Amy Crandall, Engineering Geologist, Colorado Geological Survey (303-384-2632 or acrandall@mines.edu)
2/15/2023 1:07:42 PM
PCD Project Manager
12/6/2022 4:39:41 PM
Planning Division has no further comments at this time. Please coordinate with PCD Project Manager regarding administrative permit issuance. 12/6/2022 4:39:41 PM
PCD Engineering Division
11/30/2022 1:56:39 PM
Review #2: Engineering comments are resolved.


Reviewed by:
Gilbert LaForce, PE
gilbertlaforce@elpasoco.com
11/30/2022 1:56:39 PM
Colorado Geological Survey
11/29/2022 10:31:50 AM
CGS's previous comments from 8/12/2022 do not appear to have been addressed in the resubmittal documents; our original comments are still applicable. 11/29/2022 10:31:50 AM
Upper Black Squirrel Creek GWMD
9/7/2022 2:22:20 PM
This is not in the Upper Black Squirrel Creek GWMD basin or boundaries. 9/7/2022 2:22:20 PM
View Colorado Department of Public Health and Environment
8/30/2022 5:32:51 PM
8/30/2022 5:32:51 PM
View PCD Project Manager
8/30/2022 4:41:42 PM
1041 Sections 4.201 & 6.202 comments 8/30/2022 4:41:42 PM
PCD Project Manager
8/30/2022 3:35:22 PM
Update table of contents referring to listed exhibits appendices if the additional information in redlines is provided. 8/30/2022 3:35:22 PM
View PCD Project Manager
8/30/2022 3:34:02 PM
1041 Section 3.201 comments 8/30/2022 3:34:02 PM
View PCD Project Manager
8/30/2022 3:28:54 PM
1041 section 2.303 redlines 8/30/2022 3:28:54 PM
View PCD Project Manager
8/30/2022 12:45:22 PM
Wells within 1 mile of project comments;
Also, please verify all wells near lagoons are depicted.
8/30/2022 12:45:22 PM
View PCD Project Manager
8/30/2022 12:43:51 PM
School and Fire District Map Comments 8/30/2022 12:43:51 PM
View PCD Project Manager
8/30/2022 12:41:55 PM
Land Use Map Comments; a zoning map was provided without the identifying existing land uses on and adjacent to the facility as proposed. 8/30/2022 12:41:55 PM
View PCD Project Manager
8/30/2022 12:40:43 PM
FEMA Flood Plain exhibit Comments 8/30/2022 12:40:43 PM
View PCD Project Manager
8/30/2022 12:40:03 PM
Application Form Exhibit B Comments 8/30/2022 12:40:03 PM
PCD Project Manager
8/30/2022 11:39:53 AM
Please provided an adjacent property notice so that the application can stay on the administrative approval track which reduces the time line by 45 days. The department needs to verify neighbors have no unaddressed concerns with the project if a public hearing approval is waived. 8/30/2022 11:39:53 AM
EPC Stormwater Review
8/29/2022 2:13:44 PM
Review 1: EPC Stormwater does not have any comments on any of the uploaded documents.

Reviewed by:
Glenn Reese, P.E.
Stormwater Engineer II
GlennReese@elpasoco.com
8/29/2022 2:13:44 PM
View El Paso County Conservation Dist
8/21/2022 7:31:51 PM
EPCCD grass seed native shotgun mix info attached as a .jpg. 8/21/2022 7:31:51 PM
View El Paso County Conservation Dist
8/21/2022 7:31:22 PM
EPCCD brief comments attached as .docx. 8/21/2022 7:31:22 PM
View EPC Parks Department
8/17/2022 9:52:23 AM
See attached administrative comments on behalf of El Paso County Parks. A trail easement may be requested in the future along US 24 for the Rock Island Regional Trial. 8/17/2022 9:52:23 AM
PCD Engineering Division
8/16/2022 2:13:49 PM
Review #1:
1. Update Appendix Y - Traffic Summary to discuss traffic impact such as the expected average daily trips, or if unmanned how often staff visits the sites for inspections or maintenance. Additionally, road impact fee may be required with the site development plan application.

2. Engineering defers site specific review and comments to the site development plan application. The following documents is required with the initial site development plan application:
- Final Drainage Report
- Grading and Erosion Control Plan (inform the planner if the GEC plan is included with the Construction Drawings)
- GEC Checklist
- Stormwater Management Plan (SWMP)
- SWMP Checklist
- PBMP Applicability Form
- Financial Assurance Estimate (FAE)
- Force Main Construction Drawings
- Erosion and Stormwater Quality Control Permit (ESQCP)

3. Work-in-the-ROW permit will be required for work in El Paso County Roads. Construction impacts on County transportation facilities will be addressed in these permits.


Reviewed by:
Gilbert LaForce, PE
gilbertlaforce@elpasoco.com
8/16/2022 2:13:49 PM
Mountain View Electric Association, Inc.
8/15/2022 4:58:40 PM
The Association has existing facilities near and within this parcel of land. If there is any damage, removal or relocation of facilities it will be at the expense of the applicant. 8/15/2022 4:58:40 PM
Colorado Geological Survey
8/12/2022 10:09:59 AM
The Town of Ramah proposes a new wastewater system including a sewer lift station, three evaporative ponds, a force main, and associated piping. Kumar’s Geotechnical Engineering Study, Ramah Wastewater Treatment Plan (Kumar & Associates, Inc., April 22, 2022), provides a valid description of surface and subsurface conditions and soil engineering properties, however, a discussion of the geology and geologic hazards were not included.

The El Paso County Engineering Criteria Manual (ECM) provides guidance for the type of Soils and Geology investigations and reports required for any public improvements. Kumar does not specifically list or map the geologic conditions and associated hazards and constraints as defined by the ECM. CGS recommends that the evaluation of risk from geologic conditions be derived from locally accurate geologic information. These investigations should include site-specific geologic mapping. Geologic hazards and engineering constraints to be discussed that are potentially impacting the site to various degrees include:
• loose, easily erodible soils,
• collapsible soils,
• expansive soils,
• flooding,
• coal mine subsidence,
• seasonally shallow and perched groundwater, and,
• scour and erosion potential during flooding.

Kumar states (page 4), “Groundwater was measured at a depth of about 15.3 feet in the boring drilled for the proposed lift station measured six days after drilling. This depth is near the elevation of the base of the lift station, and groundwater may be a construction consideration at this site.” Kumar indicates, “A detailed discussion is presented in the “Site Grading and Earthwork” Section,” however, a discussion of groundwater and the effect on foundations/structures was not included. CGS recommends additional discussion on the fluctuations and effect of groundwater on the proposed facility.

Kumar also states, “The clay soils encountered in our study will have relatively low permeability….An engineered liner system should be implemented at the basin of each pond if specific permeability limits are required for this project.” Sheet 25 of the Pond Details (Element Engineering LLC, March 2022) indicates 45-mil reinforced polypropylene or 40-mil reinforced composite geomembrane is to be installed within the pond. Kumar should review the plans and details (as recommended on page 14 of their report) for the wastewater system and update/modify their recommendations, if necessary.

Submitted 8/12/2022 by Amy Crandall, Engineering Geologist, Colorado Geological Survey (303-384-2632 or acrandall@mines.edu)
8/12/2022 10:09:59 AM
Pikes Peak Regional Building Department
8/11/2022 9:08:44 AM
Regarding a request for approval of an expansion of a wastewater facility for the Town of Ramah, since the only scope of work which would require any type of building permit lies in the Town limits of Ramah where PPRBD has no jurisdiction, Enumerations has no comment or objection.



Brent Johnson
Enumerations Plans Examiner
8/11/2022 9:08:44 AM
View Colorado Parks and Wildlife
8/10/2022 5:14:51 PM
8/10/2022 5:14:51 PM
View EPC Environmental Services
8/4/2022 1:39:53 PM
8/4/2022 1:39:53 PM
County Attorney - Development Review
8/4/2022 11:23:00 AM
No comments from County Attorney - Development Review at this time. 8/4/2022 11:23:00 AM
View Colorado Division of Water Resources
8/2/2022 10:40:30 AM
8/2/2022 10:40:30 AM
RBD Floodplain
7/25/2022 12:46:14 PM
work shown on "Site Map (Proposed Use)" is not in the SFHA, no comment 7/25/2022 12:46:14 PM