Indian Lake Existing Flow.18Jan2022.pdf
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- Solicitation number
- RFP - 171 - 230000002322
- Issued by
- Schoolcraft County, Michigan
About this file
This document appears to be a Wastewater Study for the Twin Lakes State Park in Michigan, conducted by the Department of Technology, Management, and Budget (DTMB) and the Michigan Department of Natural Resources (MDNR). The study provides a detailed analysis of the existing and proposed sewage disposal system for the park, including the campground, beach house, contact station, and sanitation station sites. The study evaluates the wastewater flow based on fixture unit design, low flow fixture criteria, and the number of campsites, and estimates the total existing wastewater flow to be 9,352 gallons per day.
The related state and local contract opportunity is for park improvements at Palms Book and Indian Lake State Parks in Schoolcraft County, Michigan. The project scope, response dates, award information, and contract term are not included in the provided documentation.
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DTMB/MDNR Twin Lakes State Park On-Site Sewage Disposal Study File No. 751/20169.JBB, Index No. 5519
1/18/2022
A. Campground/Campsites
Number of Existing Campsites 145 Number of Proposed Campsites 0 Number of Mini-Cabins 2
Design Peak Day (hrs) 14
Fixture Unit Design Pk Total No. Flow (gph) Day (hrs) Flow (gpd)
SW Toilet/Shower Building Water Closets 8 36 14 4,032 Urinals 3 10 14 420 Lavatories 9 15 14 1,890 Slop Sink 1 3 14 42 Showers 4 100 14 5,600
SW Toilet/Shower Building Subtotal 11,984
Beach House Water Closets 6 36 14 3,024 Urinals 2 10 14 280 Lavatories 4 15 14 840 Janitors Sink 1 3 14 42
Beachouse Subtotal 4,186
Contact Station Water Closets 1 36 14 504 Lavatories 1 15 14 210 Janitors Sink 1 3 14 42 Drinking Fountain 2 2 14 56
Contact Station Subtotal 812
Sanitation Station Sites Sanitation Station Subtotal 147 20 2,940
Wastewater Flow Total 19,922
EVALUATION AND BASIS OF DESIGN FOR WASTEWATER CAPACITY
A. Based on Fixture Flow per Michigan Criteria for Subsurface Sewage Disposal
Flow/Site (gpd)
Existing Flow
F:\Data\200000\200692 - Sanders & Czapski - Indian Lake State Park\Wastewater Study\Design Info\Indian Lake Sewer Design.xlsx
DTMB/MDNR Twin Lakes State Park On-Site Sewage Disposal Study File No. 751/20169.JBB, Index No. 5519
1/18/2022
B. Based on Low Flow Fixture Criteria Fixture Unit Design Pk Total
No. Flow (gph) Day (hrs) Flow (gpd) SW Toilet/Shower Building Water Closets 8 10 14 1,120 Urinals 3 5 14 210 Lavatories 9 5 14 630 Slop Sink 1 3 14 42 Showers 4 50 14 2,800
SW Toilet/Shower Building 4,802
Beach House Water Closets 6 10 14 840 Urinals 2 5 14 140 Lavatories 4 5 14 280 Janitors Sink 1 3 14 42
Beachouse Subtotal 1,302
Contact Station Water Closets 1 10 14 140 Lavatories 1 5 14 70 Janitors Sink 1 3 14 42 Drinking Fountain 2 2 14 56
Contact Station Subtotal 308
Sanitation Station Sites Flow/Site (gpd) Sanitation Station Subtotal 147 20 2,940
Wastewater Flow Total 9,352
C. Based on Number of Sites EGLE Part 125 (R325.1561(b) Campgrounds Number of Campground Sites 145 75 10,875 Cabins 2 30 60
Wastewater Flow Total 10,935
D. Estimated Existing Flow 9,352
F:\Data\200000\200692 - Sanders & Czapski - Indian Lake State Park\Wastewater Study\Design Info\Indian Lake Sewer Design.xlsx
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