HomeMy WebLinkAbout20 - Design Report - Cottonwood Subdivision - Sewer
WASTEWATER SYSTEM
DESIGN REPORT
FOR:
COTTONWOOD SUBDIVISION
BOZEMAN, MT
Prepared By:
Madison Engineering
895 Technology Blvd Ste 203
Bozeman, MT 59718
(406) 586-0262
MARCH 2020
Cottonwood Subdivision
Wastewater Design Report
Page 1 of 5
COTTONWOOD SUBDIVISION
WASTEWATER SYSTEM DESIGN REPORT
A. General
This report will give an overview of the proposed wastewater collection system for the
development of the Cottonwood Subdivision, located at the intersection of Cottonwood Road and
Loyal Drive in Bozeman. The 28.09-acre subdivision is zoned R-5 (Residential Mixed-Use High
Density District) and will consist of multi-residential units. The proposed improvements are
anticipated to be phased, with the first phase being constructed in 2021.
Included in this report is a description of the proposed wastewater collection system and design
parameters. Once the wastewater system is constructed and approved, the system will become a
part of the City of Bozeman system. The following references were used in the wastewater
facilities design and capacity analysis:
a. COB Design Standards and Specifications Policy, 2004. Addendum #6 (DSSP)
b. COB Modifications to Montana Public Works Standard Specifications (MPWSS),
Addendum #3
c. City adopted MPWSS and Adopted Addenda
d. COB Wastewater Facility Plan, 2015
e. WQB Circular No. 2
f. City of Bozeman Zoning Map
The procedures and parameters outlined in the COB Design Standards and Specifications Policy
(DSSP) were used in the design of the sewer infrastructure for the proposed development. This
project will require the approval of the City Engineer and the Montana Department of
Environmental Quality (MDEQ).
A.1. Site Conditions
Soil conditions on site consist of a native topsoil to a depth of approximately 12 inches, which is
underlain by a thin, intermediate layer of stiff, silt/clay. Beginning at depths of 1.2 to 2.5 feet is
an alluvial deposit of clean, sandy gravel that underlies much of the Bozeman area at relatively
shallow depths. This clean, sandy gravel extended to the bottom of all 10 to 11 foot test pits.
Groundwater depths on site are, on average, to a depth of 7 to 9 feet in the north, central, and east
sides of the property, but at a shallower 5-foot depth on the south and southwest sides.
Groundwater levels were monitored during the spring and summer of 2018. The highest
groundwater levels were recorded in mid-April and showed shallow water conditions across the
site. Throughout most of the site, the seasonal high-water depths ranged from 3 to 4 feet, but rose
to as high as 1.0 to 2.5 feet below the ground surface in the site’s southwest corner. Water flows
on site in a northwesterly direction. Buoyancy calculations can be found in Appendix 6 of this
report. Although groundwater is highest in the southwestern most area of the site, there are no
manholes proposed in that area and so buoyancy calculations were performed on the southernmost
manhole (SSMH#15). Buoyancy calculations were based on the highest groundwater elevation of
1-foot depth because this is an incredibly conservative estimate for all manholes in the entire site.
Cottonwood Subdivision
Wastewater Design Report
Page 2 of 5
No basements are advised on site. Crawl spaces are only recommended if the depth is limited
below existing site grades, in-filling the crawl space up to the top of footings with a clean crushed
rock layer, and installing subsurface drainage measure. Otherwise, at-grade slabs with perimeter
footings and frost wall are recommended.
The site is in an “Area of Minimal Flood Hazard” per the FEMA Panel 30031C0811D.
A.2. Environmental Impacts
Potential environmental impacts could include affecting the soil, groundwater, waterways, and
wetlands on or off site. Cumulative and secondary impacts have been taken into consideration and
minimized through design and permitting processes. Impacts to the soil, groundwater, and
waterways will be minimized and mitigated through directing all stormwater runoff from on site
into retention and detention basins that will allow any contaminants and sediment to settle before
being discharged.
Wetland impacts on site have been fully permitted.
B. Capacity Analysis
The proposed wastewater system will provide service to Cottonwood Subdivision as well as
16.71 acres of future development to the east. The 16.71 acres to the east is currently in Gallatin
County, so it was assumed that it will be zoned as R-4 (Residential High Density District) when
it is annexed into the City of Bozeman.
The wastewater demand was estimated on a per capita basis for Cottonwood Subdivision and on
a per acre basis for the future 16.71 acres of future development to the east (see Tables 2 & 3).
The City of Bozeman's Design Standards do not specify an average daily flow rate for R-5
zoning, so the flow rates were calculated using the proposed number of units (400 units) and the
updated residential daily flow of 64.4 gal./person/day combined with the value of 2.17 persons
per household. This information is not published in the City Design Standards, but rather found
on page 5 of the 2015 Wastewater Collection Facilities Plan Update (see Appendix 7). It has
been confirmed with the City of Bozeman Engineering Department that these updated figures
should be used for design of sanitary sewers and not the values of 89 gal./person/day and 2.11
person per household published in the design standards.
The Standards specify an average daily flow rate of 1,950 gal/acre/day for R-4 development,
obtained from Table V-1. This value is used to estimate flows from the adjacent 16.71-acre
future development to the east.
Inflow and Infiltration (I&I) were estimated based on the City Standard 150 gallons per acre per
day (see Table 1).
The proposed sewer mains have been sized to flow at no more than 75-percent of full capacity at
peak hour conditions of full build out, and a Manning coefficient of 0.013 was used for PVC
pipe.
Cottonwood Subdivision
Wastewater Design Report
Page 3 of 5
Table 1: I & I Estimates for Cottonwood Subdivision
and future development to the east
Sewer
System
I & I
(gal/acre/day)
Area
(acres)
Total I & I
(gal/day)
Cottonwood
Subdivision 150 28.09 4,214
Future
Development
to the East
150 16.71 2,507
Total 6,721
Table 2: Sanitary Sewer Flow Estimates for Cottonwood Subdivision
Sewer
System
Proposed
no. of
units
Density
(Persons
/unit)
Total
no. of
people
Avg. Daily
Flow Rate
(gpd)
Peaking
factor
Peak Flow
Rate (gpd)
Peak Flow
Rate + I&I
(gpd)
Peak Flow
Rate + I&I
(cfs)
Cottonwood
Subdivision 400 2.17 868 55,900 3.84 214,656 218,870 0.34
Table 3: Sanitary Sewer Flow Estimates for future development to the east
Sewer
System
Wastewater
Loading
(gpd/acre)
Area Served
(acres)
Avg. Daily
Flow Rate
(gpd)
Peaking
Factor
Peak Flow
Rate (gpd)
Peak Flow
Rate + I&I
(gpd)
Peak Flow
Rate + I&I
(cfs)
Future
Development
to the East
1,950
(assumed)
16.71
(assumed) 32,585 4.03 131,318 133,825 0.21
The calculated peaking factors are included in Appendix 5 of this report. The peak flow rate
anticipated from the development was calculated by multiplying the average daily flow rate by the
peaking factor and then adding the I &I. The peak flow rate was then converted from gallons per
day (gpd) to cubic feet per second (cfs). Adding the peak flow rate from Cottonwood Subdivision
of 0.34 cfs to the peak flow rate from the future development to the east of 0.21 cfs yields a design
peak flow rate value of 0.55 cfs.
The sewer main sizes for the all streets will be 8-inch based on minimum required pipe size and
slope. An 8-inch PVC sewer main at 0.40% slope has a capacity of 0.64 cfs at 75% of full flow
capacity, which has adequate capacity for the proposed peak flows. Calculations are provided in
Appendix 1 of this report.
Cottonwood Subdivision
Wastewater Design Report
Page 4 of 5
C. Proposed Collection System
With the extension of local streets within the subdivision, 48-inch manholes (spaced a maximum
of 400-feet apart) with 8-inch sanitary sewer main will be installed to serve the proposed lots. All
8-inch sanitary sewer mains within the subdivision will drain to the west into the existing 15-inch
sanitary sewer main in Cottonwood Road. This 15-inch main in Cottonwood Road drains to the
Loyal Garden lift station. The lift station capacity is discussed in the following section D of this
report.
PVC pipe meeting COB specifications will be used for all sewer mains. The sewer main will
maintain a minimum separation of 10-feet horizontally and 18-inches vertically from any proposed
or existing public water mains.
D. Downstream Capacity Analysis
The sanitary sewer mains were designed in conformance with the City of Bozeman Wastewater
Improvement Plan. Cottonwood Subdivision will be served by the Loyal Garden Subdivision Lift
Station until sewer main improvements are installed in Cottonwood Road per the Facility Plan.
These improvements include a sewer main in Cottonwood Road from the intersection of Durston
Road to approximately 460 feet south of Huffine Lane.
The original Loyal Garden lift station was designed to serve Loyal Garden Subdivision and an
"additional 140 acres" located to the south and to the east of Loyal Garden. The 28.09-acre
Cottonwood Subdivision falls within this “additional 140-acre” area and is therefore intended to
be served by the Loyal Garden lift station. In 2019, the City of Bozeman Engineering Department
decided that the remaining capacity in the Loyal Garden lift station would be allocated on a first-
come first-served basis. A capacity analysis of the lift station was performed by Madison
Engineering during the winter of 2019-2020. As of this writing (March 2020), that report is under
review at the City of Bozeman Engineering Department. The analysis found that adequate capacity
is available in the Loyal Garden lift station to serve the entirety of Cottonwood Subdivision. The
lift station analysis report is included in Appendix 8 of this report.
It should be noted that the 16.71 future development to the east of Cottonwood Subdivision was
only included in the calculations for the Cottonwood Subdivision sanitary sewer design to ensure
adequate capacity of the 8-inch pipes within the subdivision. This 16.71-acre area was not included
in the lift station capacity analysis. If ever developed, the 16.71-acre area to the east will be
required to determine the remaining capacity of the lift station and if capacity does not exist, then
be required to install the sanitary sewer upgrade in Cottonwood Road from intersection of Durston
Road to approximately 460 feet south of Huffine Lane.
Cottonwood Subdivision
Wastewater Design Report
Page 5 of 5
Appendices
1. Sewer Main Capacity Analysis
2. City of Bozeman Wastewater Improvement Plan, Figure 5-7
3. Sanitary Sewer Drainage Basin Exhibit
4. Sewer and Water Main Exhibit
5. Peaking Factor Calculations
6. Buoyancy Calculations
7. Page 5 of the Wastewater Collection Facilities Plan Update, 2015
8. Loyal Garden Lift Station Capacity Analysis Report, 2020 (Madison Engineering)
Appendix
Appendix 1
Sewer Main Capacity Analysis
Appendix 2
City of Bozeman WW Improvement
Plan – Exhibit 5-7
Appendix 3
Sanitary Sewer Drainage Basin
Exhibit
LOYAL DRIVE COTTONWOOD RD HUFFINE LANETOWN PUMPLOYALGARDENSUBDIVISIONW GARFIELD STALPHA DRIVECOTTONWOOD SUBDIVISION28.09 ACRESCOUNTY16.71 ACRES1 inch =0SCALE300 feet600'150'300'SS1.0MADISON ENGINEERING895 TECHNOLOGY BLVD, BOZEMAN, MT 59718PHONE (406) 586-0262COTTONWOOD SUBDIVISIONSANITARY SEWER DRAINAGE BASINSBOZEMAN, MT
Appendix 4
Sewer and Water Main Exhibit
LP
LOYAL
GARDEN
SUBDIVISION
ALPHA DRIVE
HUFFINE LANE
COTTONWOOD ROADSTAFFORD AVEGARFIELD ST
RESORT DRPARK BLVD
LOY
A
L
D
R
LOT 2
BLOCK 2
LOT 2
BLOCK 1
LOT 1
BLOCK 1 LOT 1
BLOCK 2
LOT 1
BLOCK 3
LOT 2
BLOCK 3
LOT 1
BLOCK 5
LOT 1
BLOCK 6
PUBLIC PARK
PUBLIC
PARK
PUBLIC
PARK
PUBLIC
PARK
TOWN
PUMP
-EXT'G-STAFFORD AVE(FUTURE)1 inch =
0
SCALE
200'
400'100'200'
EXHIBIT AMADISON ENGINEERING
895 TECHNOLOGY BLVD, SUITE 203
BOZEMAN, MT 59718
PHONE (406) 586-0262
COTTONWOOD ROAD IMPROVEMENTS
SEWER AND WATER MAIN EXHIBIT
BOZEMAN, MT
Appendix 5
Peaking Factor Calculations
Appendix 6
Buoyancy Calculations
Appendix 7
Page 5 of Wastewater Collection
Facilities Plan Update, 2015
1-2
Table 1-1 Estimated Wastewater Generation –Average Day
User Category
Percentage of
Wastewater Generation
Wastewater
(gal/capita/day) 2 Residential 50% 64.4 Commercial 26% 33.8 Top 8 Water Users 1 8% 9.6
Montana State University 11% 14.6 Government 3% 4.0 Industry 1% 1.7 Total 100.0% 128
1. Eight highest water consumers; includes hotels and hospital.
2. Per capita value in this table is a direct per capita use per person for residential use and indirect per capita use for the other categories.
The 64.4 gallons per capita per day “residential user” category combined with a value of 2.17 persons per household based on the 2010 census data results in 140 gallons per day per dwelling
unit, which was used in wastewater generation estimates for residential uses. Future commercial flows were allocated based on an estimated flow per acre. Using the above wastewater generation
rates, population densities and other information, wastewater generation rates were calculated on a “per acre” basis for a defined set of land use categories. The “per acre” values were then applied to
existing uses; future development areas with current land use designations or zoning; and future development of areas with currently undefined land use. Details are provided in Chapter 2.
The wastewater flow value of 64.4 gallons per capita per day developed with this plan is significantly
lower than values used in previous planning efforts. The 2007 plan used a value of 89 gallons per day per capita. The difference is attributed to a combination of using more precise data, reduced
levels of infiltration due to rehabilitation projects and an increase in percentage of homes that use lower flow fixtures than were used prior to the Energy Policy Act of 1992 which was the first
substantial national legislation focused on lowering water use for fixtures.
1.3 EXISTING SYSTEM DATABASE
This study combines and updates inventories from the 1998 City of Bozeman Wastewater Facility
Plan, 2007 update, and the current GIS inventory. Additionally, the database was updated to include
data from the City’s record drawings for recent projects. Limitations to the database include some
missing manhole/pipe elevation and slope data, and data on a variety of elevation datums which
cannot be readily correlated. To fill in this missing information for modeling purposes, estimated
values were arrived at based on surrounding elevations. At the time of this study, the wastewater
collection system is made up of approximately 210 miles of gravity sewer mains, 4,200 manholes,
twelve lift stations, and associated force mains that route wastewater to the treatment plant.
1.3.1 Data Base Recommendations
As the wastewater collection system expands, it is important to routinely update the inventory data
base. The data base provided with this plan does not include the most recently constructed portions
of the collection system and it will need to be updated routinely as development continues to occur.
Appendix 8
Loyal Garden Lift Station Capacity
Analysis Report, 2020
LOYAL GARDEN SUBDIVISION
LIFT STATION CAPACITY
ANALYSIS REPORT
FOR:
COTTONWOOD SUBDIVISION
BOZEMAN, MT
Prepared By:
Madison Engineering
895 Technology Blvd Ste 203
Bozeman, MT 59718
(406) 586-0262
MARCH 2020
Loyal Garden Lift Station
Capacity Analysis Report
Page 1 of 4
LOYAL GARDEN SUBDIVISION
LIFT STATION CAPACITY ANALYSIS REPORT
A. General
This report will give an overview of the analysis of the capacity of the existing Loyal Garden
Subdivision Sanitary Sewer Lift Station. The purpose of this analysis is to determine the actual
flow to the lift station and determine how much additional capacity remains for the future
development of the 28-acre Cottonwood Subdivision (Lot 3A-1, Minor Subdivision 454C) located
to the east of Loyal Garden Subdivision. The lift station was designed for the sanitary sewer flows
within Loyal Garden Subdivision and an additional 140 acres in the surrounding area to the east
and south (including future Cottonwood Subdivision). As of this writing (March 2020), only one
development within the 140 acres outside of Loyal Garden Subdivision has utilized the lift station;
Lot 1, Minor Subdivision 454B (Town Pump). Given the size and density of the proposed
Cottonwood Subdivision, the City of Bozeman Engineering Department has requested a capacity
analysis of the lift station prior to allowing Cottonwood Subdivision to utilize it for their
development.
The following references were used in this capacity analysis:
a. COB Design Standards and Specifications Policy, 2004. Addendum #6 (DSSP)
b. COB Modifications to Montana Public Works Standard Specifications (MPWSS),
Addendum #3
c. City adopted MPWSS and Adopted Addenda
d. COB Wastewater Facility Plan, 2015
e. City of Bozeman Zoning Map
f. City of Bozeman GIS Infrastructure viewer
B. Capacity Analysis
It was originally intended to meter the sanitary sewer flow at four different manholes within the
subdivision; capturing all the contributing drainage basins to the lift station. For various reasons
discussed below, this method was abandoned and a multi-faceted approach was agreed upon
between Madison Engineering and the City of Bozeman Engineering Department for the capacity
analysis. These methods included:
• Flow metering of two manholes (M0615 and M0617) within Loyal Garden Subdivision
(see Sheet EX1.0 in Appendix A for the location of these manholes within the subdivision),
• Water consumption data provided by City of Bozeman Utility Billing Department,
• Proportional estimation of flow per single family home based on flow metering data from
M0615, and
• Sewage Calculation Memorandum from CTA Group for West Bozeman Ambulatory
Surgery Center (ASC) dated April 24, 2019.
Flow metering
TD&H Engineering provided the metering and data collection services for this project in
collaboration with the City of Bozeman Water and Sewer Department. The original plan of
Loyal Garden Lift Station
Capacity Analysis Report
Page 2 of 4
monitoring four separate manholes for a duration that captured three rainfall storm events was
abandoned in February 2020. Multiple technical issues with the flow meters and the time of year
during which monitoring needed to take place made capturing three rainfall storm events
impractical and overly time consuming. Also, the manholes that drain from Lot 11, Block 1
(Golden Gate Condos) had sub-optimal pipe in/out angles to accurately meter the flow.
Flow data from M0615 was collected for one week between 11/20 and 11/28/2019. The average
daily flow to this manhole was 234 gallons per day (gpd). M0615 receives flow from seven single
family homes in Loyal Garden Subdivision (see Sheet EX1.0, Drainage Basin 2).
Flow data from M0617 was collected for two weeks between 02/19 and 03/05/2020. The average
daily flow to this manhole was 13,170 gpd. M0617 receives flow from the majority of lots in Loyal
Garden Subdivision (see Sheet EX1.0, Drainage Basin 3). The flow metering data captures data
points once per minute which resulted in over 10,000 data points per manhole. The excel files
containing this data are too large to share in the appendix of this report and are available upon
request from Madison Engineering. The data has been averaged and summarized in Appendix B.
Water consumption data
Water consumption data provided by the City of Bozeman Utility Billing Department was used to
determine the sanitary sewer flows from Lot 11, Block 1 (Golden Gate Condos) and Lot 1, Minor
Subd. 454B (Town Pump). Data was collected from the previous two years to determine an average
daily flow. This is considered to be a conservative estimate of sanitary sewer flows from these two
lots because if any water consumption was used for landscape irrigation, it is included in these
figures even though it does not drain directly to the sanitary sewer. The average daily flow from
Golden Gate Condos is 5,066 gpd and from Town Pump it is 3,862 gpd. See Appendix B for a
summary of the water consumption data and Appendix E for the original data provided by the City
of Bozeman Billing Department.
Proportional estimation of flow
Eight lots within Block 3 of Loyal Garden Subdivision fall outside of the manholes that were
monitored. Since these lots contain single family homes, similar to the seven lots that drain to
M0615, the flow per lot per day was calculated and applied to these unmonitored lots in Block 3.
The average daily flow from these eight lots in Block 3 is 268 gpd (see Sheet EX1.0, Drainage
Basin 1). See Appendix B for calculations.
Sewage Calculation Memorandum from CTA Group for West Bozeman ASC
At the time of this writing the West Bozeman ASC is under construction on Lot 1A of Block 1,
Loyal Garden Subdivision. CTA Group provided a memorandum with sewage calculations for the
proposed site development to the City of Bozeman Engineering Department on April 24, 2019.
Their calculations show that the ASC will result in 4,095 gpd of sanitary sewer flow to the lift
station.
A summary table of the average daily sanitary sewer flows to Loyal Garden Subdivision Lift
Station is included on Sheet EX1.0 in Appendix A.
Loyal Garden Lift Station
Capacity Analysis Report
Page 3 of 4
C. Discussion of Inflow & Infiltration
In order for Cottonwood Subdivision to be developed, the remaining capacity of the Loyal Garden
Lift Station needed to be determined. Given the timing of the start of construction of Cottonwood
Subdivision (estimated summer 2020) and the need for the manhole flow metering to include a
time period that receives three rainfall events, the Inflow and Infiltration (I & I) was estimated
using the Bozeman DSSP standard of 150 gpd/acre. This was agreed upon as an acceptable solution
for performing the lift station capacity analysis during the winter of 2019-2020 between Madison
Engineering and the City of Bozeman Engineering Department. It is assumed that given the time
of year of the flow metering at M0615 and M0617 (November and February/March, respectively)
that no significant I & I was captured during those periods. Therefore, 150 gpd/acre was applied
to the entire 75-acre Loyal Garden Subdivision, the 3.06-acre Lot 1 of Minor Subd. 454B (Town
Pump) and the 28.09-acre Lot 3A-1 of Minor Subd. 454C (Future Cottonwood Subd.) to estimate
the I & I. This is considered a conservative estimate because the Loyal Garden sanitary sewer
system is relatively new PVC SDR 35 (constructed in 2007) and I & I is a far less common of an
issue in newer PVC systems. All I & I flow values cancel out because the lift station was originally
designed using the same 150 gpd/acre standard in 2006.
D. Summary of original lift station design
The Loyal Garden Lift Station was designed in 2006 by TD&H Engineering. It was calculated that
the average daily flow from Loyal Garden Subdivision would be 28,080 gpd with an additional
11,250 gpd allocated for I & I (see excerpt of original TD&H design report in Appendix D). The
analysis presented herein, shows that the original design figure of 28,080 gpd was conservative.
The actual estimated flow to the lift station from Loyal Garden Subdivision is 22,833 gpd. Because
our analysis did not monitor I & I, the same value of 11,250 gpd was used, which cancels out.
Therefore, 5,247 gpd of lift station capacity remains unused within the Loyal Garden Subdivision.
The original estimation provided in the lift station design report (see Appendix D) of daily flow
from the additional 140 acres was 80,640 gpd. With the development of Town Pump in 2016 on
Lot 1, Minor Subd. 454B, 3.06 acres of the 140 acres were used. Using the water consumption
data for Town Pump, our analysis shows an average daily flow of 3,862 gpd. This means that for
the additional 140-acre area originally specified in the Loyal Garden lift station design report, a
sanitary sewer capacity of 76,778 gpd remains available for use by the Cottonwood Subdivision.
In 2019, the City of Bozeman Engineering Department decided that the remaining capacity in the
Loyal Garden lift station would be allocated on a first-come first-served basis.
The sanitary sewer design report for Cottonwood Subdivision estimates an average daily flow of
55,900 gpd (see excerpts from Cottonwood Subd. sanitary sewer report in Appendix E). Therefore,
adequate capacity exists in the Loyal Garden Lift Station for the entirety of Cottonwood
Subdivision. A summary table comparing the original lift station design with the flow analysis and
the future Cottonwood Subdivision is presented below in Table 1.
Loyal Garden Lift Station
Capacity Analysis Report
Page 4 of 4
Table 1. Original design and capacity analysis summary
Area
Original design
avg. daily flow
(gpd)
Capacity analysis
avg. daily flow
(gpd)
Difference between
original and actual
(gpd)
Loyal Garden Subd. 28,080 22,833 5,247 surplus
Add’l 140 acres 80,640 59,762 20,878 surplus
Total 108,720 82,595 26,125 surplus
In summary, the Loyal Garden lift station has adequate capacity to serve the full build out of the
future 28-acre Cottonwood Subdivision and still has 20,878 gpd available for the future
development of adjacent lots within the original “additional 140-acre” district. Also, there is 5,247
gpd of unused lift station capacity within Loyal Garden Subdivision, which equates to a total of
26,125 gpd of available capacity.
Appendices
A. Exhibit 1.0 – Drainage Basin Map
B. Summary of flow data, water usage and I & I
C. Sewage flow calculation memo by CTA Group for West Bozeman ASC
D. Excerpts from original Loyal Garden Lift Station Design Report
E. Excerpts from Cottonwood Subdivision sewer design report
F. Water usage data for Golden Gate Condos and Town Pump
Appendix
Appendix A:
Exhibit 1.0 – Drainage Basin Map
ADVANCE DRIVEALPHA
D
R
I
V
E
GOLDEN GATE AVE.FARM
E
R
S
C
A
N
A
L
HUFFINE LANE
COTTONWOOD ROADWINNOWCIR.FAR
M
E
R
S
CANAL
TRIUM
P
H
S
T
R
E
E
T
VINE STREET
STREET
LOYAL
D
R
I
V
ELOYAL
GARDEN
SUBD
.
VICTORY (FUTURE)COTTONWOOD
SUBD.MADISON ENGINEERING
895 TECHNOLOGY BLVD SUITE 203
BOZEMAN, MT 59718
(406) 586-0262
SHEET
EX1.0
Lift Station Analysis
Loyal GardenLOYAL GARDEN LIFT STATION
BOZEMAN, MT
DRAINAGE BASIN EXHIBIT
CAPACITY ANALYSIS
1 inch =
0
SCALE
300'
600150300
SANITARY SEWER FLOW LOYAL GARDEN SUBD.
SUMMARY TABLE
SANITARY SEWER FLOW ADD'L 140 ACRES
SUMMARY TABLE
Appendix B:
Summary of flow data, water usage
and I & I
Appendix C:
Sewage flow calculation memo by CTA
Group for West Bozeman ASC
Appendix D:
Excerpts from original Loyal Garden
Lift Station Design Report
Appendix E:
Excerpts from Cottonwood
Subdivision Sewer Design Report
Cottonwood Subdivision
Wastewater Design Report
Page 1 of 5
COTTONWOOD SUBDIVISION
WASTEWATER SYSTEM DESIGN REPORT
A. General
This report will give an overview of the proposed wastewater collection system for the
development of the Cottonwood Subdivision, located at the intersection of Cottonwood Road and
Loyal Drive in Bozeman. The 28.09-acre subdivision is zoned R-5 (Residential Mixed-Use High
Density District) and will consist of multi-residential units. The proposed improvements are
anticipated to be phased, with the first phase being constructed in 2021.
Included in this report is a description of the proposed wastewater collection system and design
parameters. Once the wastewater system is constructed and approved, the system will become a
part of the City of Bozeman system. The following references were used in the wastewater
facilities design and capacity analysis:
a. COB Design Standards and Specifications Policy, 2004. Addendum #6 (DSSP)
b. COB Modifications to Montana Public Works Standard Specifications (MPWSS),
Addendum #3
c. City adopted MPWSS and Adopted Addenda
d. COB Wastewater Facility Plan, 2015
e. WQB Circular No. 2
f. City of Bozeman Zoning Map
The procedures and parameters outlined in the COB Design Standards and Specifications Policy
(DSSP) were used in the design of the sewer infrastructure for the proposed development. This
project will require the approval of the City Engineer and the Montana Department of
Environmental Quality (MDEQ).
A.1. Site Conditions
Soil conditions on site consist of a native topsoil to a depth of approximately 12 inches, which is
underlain by a thin, intermediate layer of stiff, silt/clay. Beginning at depths of 1.2 to 2.5 feet is
an alluvial deposit of clean, sandy gravel that underlies much of the Bozeman area at relatively
shallow depths. This clean, sandy gravel extended to the bottom of all 10 to 11 foot test pits.
Groundwater depths on site are, on average, to a depth of 7 to 9 feet in the north, central, and east
sides of the property, but at a shallower 5-foot depth on the south and southwest sides.
Groundwater levels were monitored during the spring and summer of 2018. The highest
groundwater levels were recorded in mid-April and showed shallow water conditions across the
site. Throughout most of the site, the seasonal high-water depths ranged from 3 to 4 feet, but rose
to as high as 1.0 to 2.5 feet below the ground surface in the site’s southwest corner. Water flows
on site in a northwesterly direction. Buoyancy calculations can be found in Appendix 6 of this
report. Although groundwater is highest in the southwestern most area of the site, there are no
manholes proposed in that area and so buoyancy calculations were performed on the southernmost
manhole (SSMH#15). Buoyancy calculations were based on the highest groundwater elevation of
1-foot depth because this is an incredibly conservative estimate for all manholes in the entire site.
Cottonwood Subdivision
Wastewater Design Report
Page 2 of 5
No basements are advised on site. Crawl spaces are only recommended if the depth is limited
below existing site grades, in-filling the crawl space up to the top of footings with a clean crushed
rock layer, and installing subsurface drainage measure. Otherwise, at-grade slabs with perimeter
footings and frost wall are recommended.
The site is in an “Area of Minimal Flood Hazard” per the FEMA Panel 30031C0811D.
A.2. Environmental Impacts
Potential environmental impacts could include affecting the soil, groundwater, waterways, and
wetlands on or off site. Cumulative and secondary impacts have been taken into consideration and
minimized through design and permitting processes. Impacts to the soil, groundwater, and
waterways will be minimized and mitigated through directing all stormwater runoff from on site
into retention and detention basins that will allow any contaminants and sediment to settle before
being discharged.
Wetland impacts on site have been fully permitted.
B. Capacity Analysis
The proposed wastewater system will provide service to Cottonwood Subdivision as well as
16.71 acres of future development to the east. The 16.71 acres to the east is currently in Gallatin
County, so it was assumed that it will be zoned as R-4 (Residential High Density District) when
it is annexed into the City of Bozeman.
The wastewater demand was estimated on a per capita basis for Cottonwood Subdivision and on
a per acre basis for the future 16.71 acres of future development to the east (see Tables 2 & 3).
The City of Bozeman's Design Standards do not specify an average daily flow rate for R-5
zoning, so the flow rates were calculated using the proposed number of units (400 units) and the
updated residential daily flow of 64.4 gal./person/day combined with the value of 2.17 persons
per household. This information is not published in the City Design Standards, but rather found
on page 5 of the 2015 Wastewater Collection Facilities Plan Update (see Appendix 7). It has
been confirmed with the City of Bozeman Engineering Department that these updated figures
should be used for design of sanitary sewers and not the values of 89 gal./person/day and 2.11
person per household published in the design standards.
The Standards specify an average daily flow rate of 1,950 gal/acre/day for R-4 development,
obtained from Table V-1. This value is used to estimate flows from the adjacent 16.71-acre
future development to the east.
Inflow and Infiltration (I&I) were estimated based on the City Standard 150 gallons per acre per
day (see Table 1).
The proposed sewer mains have been sized to flow at no more than 75-percent of full capacity at
peak hour conditions of full build out, and a Manning coefficient of 0.013 was used for PVC
pipe.
Cottonwood Subdivision
Wastewater Design Report
Page 3 of 5
Table 1: I & I Estimates for Cottonwood Subdivision
and future development to the east
Sewer
System
I & I
(gal/acre/day)
Area
(acres)
Total I & I
(gal/day)
Cottonwood
Subdivision 150 28.09 4,214
Future
Development
to the East
150 16.71 2,507
Total 6,721
Table 2: Sanitary Sewer Flow Estimates for Cottonwood Subdivision
Sewer
System
Proposed
no. of
units
Density
(Persons
/unit)
Total
no. of
people
Avg. Daily
Flow Rate
(gpd)
Peaking
factor
Peak Flow
Rate (gpd)
Peak Flow
Rate + I&I
(gpd)
Peak Flow
Rate + I&I
(cfs)
Cottonwood
Subdivision 400 2.17 868 55,900 3.84 214,656 218,870 0.34
Table 3: Sanitary Sewer Flow Estimates for future development to the east
Sewer
System
Wastewater
Loading
(gpd/acre)
Area Served
(acres)
Avg. Daily
Flow Rate
(gpd)
Peaking
Factor
Peak Flow
Rate (gpd)
Peak Flow
Rate + I&I
(gpd)
Peak Flow
Rate + I&I
(cfs)
Future
Development
to the East
1,950
(assumed)
16.71
(assumed) 32,585 4.03 131,318 133,825 0.21
The calculated peaking factors are included in Appendix 5 of this report. The peak flow rate
anticipated from the development was calculated by multiplying the average daily flow rate by the
peaking factor and then adding the I &I. The peak flow rate was then converted from gallons per
day (gpd) to cubic feet per second (cfs). Adding the peak flow rate from Cottonwood Subdivision
of 0.34 cfs to the peak flow rate from the future development to the east of 0.21 cfs yields a design
peak flow rate value of 0.55 cfs.
The sewer main sizes for the all streets will be 8-inch based on minimum required pipe size and
slope. An 8-inch PVC sewer main at 0.40% slope has a capacity of 0.64 cfs at 75% of full flow
capacity, which has adequate capacity for the proposed peak flows. Calculations are provided in
Appendix 1 of this report.
Cottonwood Subdivision
Wastewater Design Report
Page 4 of 5
C. Proposed Collection System
With the extension of local streets within the subdivision, 48-inch manholes (spaced a maximum
of 400-feet apart) with 8-inch sanitary sewer main will be installed to serve the proposed lots. All
8-inch sanitary sewer mains within the subdivision will drain to the west into the existing 15-inch
sanitary sewer main in Cottonwood Road. This 15-inch main in Cottonwood Road drains to the
Loyal Garden lift station. The lift station capacity is discussed in the following section D of this
report.
PVC pipe meeting COB specifications will be used for all sewer mains. The sewer main will
maintain a minimum separation of 10-feet horizontally and 18-inches vertically from any proposed
or existing public water mains.
D. Downstream Capacity Analysis
The sanitary sewer mains were designed in conformance with the City of Bozeman Wastewater
Improvement Plan. Cottonwood Subdivision will be served by the Loyal Garden Subdivision Lift
Station until sewer main improvements are installed in Cottonwood Road per the Facility Plan.
These improvements include a sewer main in Cottonwood Road from the intersection of Durston
Road to approximately 460 feet south of Huffine Lane.
The original Loyal Garden lift station was designed to serve Loyal Garden Subdivision and an
"additional 140 acres" located to the south and to the east of Loyal Garden. The 28.09-acre
Cottonwood Subdivision falls within this “additional 140-acre” area and is therefore intended to
be served by the Loyal Garden lift station. In 2019, the City of Bozeman Engineering Department
decided that the remaining capacity in the Loyal Garden lift station would be allocated on a first-
come first-served basis. A capacity analysis of the lift station was performed by Madison
Engineering during the winter of 2019-2020. As of this writing (March 2020), that report is under
review at the City of Bozeman Engineering Department. The analysis found that adequate capacity
is available in the Loyal Garden lift station to serve the entirety of Cottonwood Subdivision. The
lift station analysis report is included in Appendix 8 of this report.
It should be noted that the 16.71 future development to the east of Cottonwood Subdivision was
only included in the calculations for the Cottonwood Subdivision sanitary sewer design to ensure
adequate capacity of the 8-inch pipes within the subdivision. This 16.71-acre area was not included
in the lift station capacity analysis. If ever developed, the 16.71-acre area to the east will be
required to determine the remaining capacity of the lift station and if capacity does not exist, then
be required to install the sanitary sewer upgrade in Cottonwood Road from intersection of Durston
Road to approximately 460 feet south of Huffine Lane.
Appendix F:
Water usage data for Golden Gate
Condos and Town Pump
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 1
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 57155 CHASE SKOGEN CONSTRUCTION INC
2246 BOOT HILL CT, STE 1
BOZEMAN MT 59715
LOCATION: 239680 4805 GOLDEN GATE AVE
CYCLE/ROUTE: 01-42
STATUS: A
WATER METER NUMBER: 60942073 METER SIZE: 150
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
1/06/20 REG 31 1/20 1/27/20
HCF 1053.30 35.70 .00
12/06/19 REG 31 12/19 12/25/19
HCF 1017.60 36.80 .00
11/05/19 REG 32 11/19 11/25/19
HCF 980.80 38.10 .00
10/04/19 REG 29 10/19 10/24/19
HCF 942.70 41.10 .00
9/05/19 REG 28 9/19 9/25/19
HCF 901.60 35.30 .00
8/08/19 REG 30 8/19 8/26/19
HCF 866.30 37.00 .00
7/09/19 REG 34 7/19 7/25/19
HCF 829.30 36.70 .00
6/05/19 REG 29 6/19 6/25/19
HCF 792.60 27.10 .00
5/07/19 REG 33 5/19 5/24/19
HCF 765.50 32.60 .00
4/04/19 REG 29 4/19 4/24/19
HCF 732.90 29.60 .00
3/06/19 REG 28 3/19 3/26/19
HCF 703.30 30.20 .00
2/06/19 REG 33 2/19 2/26/19
HCF 673.10 37.10 .00
1/04/19 REG 30 1/19 1/25/19
HCF 636.00 28.40 .00
12/05/18 REG 33 12/18 12/28/18
HCF 607.60 37.00 .00
11/02/18 REG 28 11/18 11/27/18
HCF 570.60 34.90 .00
10/05/18 REG 29 10/18 10/25/18
HCF 535.70 37.10 .00
9/06/18 REG 34 9/18 9/26/18
HCF 498.60 39.70 .00
8/03/18 REG 25 8/18 8/27/18
HCF 458.90 21.00 .00
7/09/18 REG 33 7/18 7/26/18
HCF 437.90 24.00 .00
6/06/18 REG 33 6/18 6/26/18
HCF 413.90 27.80 .00
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 2
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 57155 CHASE SKOGEN CONSTRUCTION INC
LOCATION: 239680 4805 GOLDEN GATE AVE
WATER METER NUMBER: 60942073 METER SIZE: 150
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
5/04/18 REG 28 5/18 5/24/18
HCF 386.10 23.50 .00
4/06/18 REG 30 4/18 4/24/18
HCF 362.60 26.20 .00
3/07/18 REG 29 3/18 3/26/18
HCF 336.40 28.20 .00
2/06/18 REG 32 2/18 2/24/18
HCF 308.20 32.90 .00
1/05/18 REG 22 1/18 1/24/18
HCF 275.30 18.50 .00
12/14/17 REG 41 12/17 12/27/17
HCF 256.80 46.80 .00
11/03/17 REG 29 11/17 11/27/17
HCF 210.00 34.20 .00
10/05/17 REG 28 10/17 10/25/17
HCF 175.80 29.60 .00
9/07/17 REG 24 9/17 9/26/17
HCF 146.20 22.90 .00
8/14/17 REG 41 8/17 8/24/17
HCF 123.30 40.00 .00
7/04/17 REG 27 7/17 7/25/17
HCF 83.30 27.50 .00
6/07/17 REG 33 6/17 6/26/17
HCF 55.80 24.30 .00
5/05/17 REG 32 5/17 5/24/17
HCF 31.50 16.70 .00
4/03/17 REG 31 4/17 4/25/17
HCF 14.80 1.70 .00
3/03/17 REG 30 3/17 3/27/17
HCF 13.10 .60 .00
2/01/17 REG 28 2/17 2/24/17
HCF 12.50 10.10 .00
1/04/17 REG 23 1/17 1/25/17
HCF 2.40 2.40 .00
TOTALS: 1120 1053.30 .00
AVERAGE DAILY USAGE: .94 .00
CONSUMPTION PARAMETERS FOR WATER
EXCEPTION REPORT FLAG . . . . : N
CONSUMPTION ESTIMATE . . . . : .00
DEMAND CONSUMPTION ESTIMATE . : .00
AVERAGE CONSUMPTION . . . . . : 1.08
AVERAGE DEMAND CONSUMPTION . : .00
TOTAL CONSUMPTION . . . . . . : 690.70
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 3
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 57155 CHASE SKOGEN CONSTRUCTION INC
LOCATION: 239680 4805 GOLDEN GATE AVE
TOTAL DEMAND CONSUMPTION . . : .00
TOTAL READING DAYS . . . . . : 640
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 1
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 60791 MOUNT BALDY CONDOS LLC
PO BOX 833
ARNOLD MD 21012
LOCATION: 239690 4815 GOLDEN GATE AVE
CYCLE/ROUTE: 01-42
STATUS: A
WATER METER NUMBER: 60943877 METER SIZE: 200
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
1/06/20 REG 31 1/20 1/27/20
HCF 1597.50 62.90 .00
12/06/19 REG 31 12/19 12/25/19
HCF 1534.60 69.20 .00
11/05/19 REG 32 11/19 11/25/19
HCF 1465.40 72.30 .00
10/04/19 REG 29 10/19 10/24/19
HCF 1393.10 59.10 .00
9/05/19 REG 28 9/19 9/25/19
HCF 1334.00 49.20 .00
8/08/19 REG 30 8/19 8/26/19
HCF 1284.80 46.20 .00
7/09/19 REG 34 7/19 7/25/19
HCF 1238.60 57.80 .00
6/05/19 REG 29 6/19 6/25/19
HCF 1180.80 49.30 .00
5/07/19 REG 33 5/19 5/24/19
HCF 1131.50 64.90 .00
4/04/19 REG 29 4/19 4/24/19
HCF 1066.60 56.60 .00
3/06/19 REG 28 3/19 3/26/19
HCF 1010.00 55.60 .00
2/06/19 REG 33 2/19 2/26/19
HCF 954.40 63.90 .00
1/04/19 REG 30 1/19 1/25/19
HCF 890.50 59.40 .00
12/05/18 REG 33 12/18 12/28/18
HCF 831.10 70.50 .00
11/02/18 REG 28 11/18 11/27/18
HCF 760.60 55.40 .00
10/05/18 REG 29 10/18 10/25/18
HCF 705.20 58.90 .00
9/06/18 REG 34 9/18 9/26/18
HCF 646.30 59.10 .00
8/03/18 REG 25 8/18 8/27/18
HCF 587.20 30.90 .00
7/09/18 REG 33 7/18 7/26/18
HCF 556.30 51.70 .00
6/06/18 REG 33 6/18 6/26/18
HCF 504.60 56.90 .00
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 2
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 60791 MOUNT BALDY CONDOS LLC
LOCATION: 239690 4815 GOLDEN GATE AVE
WATER METER NUMBER: 60943877 METER SIZE: 200
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
5/04/18 REG 28 5/18 5/24/18
HCF 447.70 52.50 .00
4/06/18 REG 30 4/18 4/24/18
HCF 395.20 54.20 .00
3/07/18 REG 29 3/18 3/26/18
HCF 341.00 46.70 .00
2/06/18 REG 32 2/18 2/24/18
HCF 294.30 52.60 .00
1/05/18 REG 22 1/18 1/24/18
HCF 241.70 33.30 .00
12/14/17 REG 41 12/17 12/27/17
HCF 208.40 69.50 .00
11/03/17 REG 29 11/17 11/27/17
HCF 138.90 43.30 .00
10/05/17 REG 28 10/17 10/25/17
HCF 95.60 36.33 .00
9/07/17 REG 45 9/17 9/26/17
HCF 59.27 56.37 .00
7/24/17 INT 9/17 9/26/17
HCF 2.90 .00 .00
TOTALS: 896 1594.60 .00
AVERAGE DAILY USAGE: 1.77 .00
CONSUMPTION PARAMETERS FOR WATER
EXCEPTION REPORT FLAG . . . . : N
CONSUMPTION ESTIMATE . . . . : .00
DEMAND CONSUMPTION ESTIMATE . : .00
AVERAGE CONSUMPTION . . . . . : 1.88
AVERAGE DEMAND CONSUMPTION . : .00
TOTAL CONSUMPTION . . . . . . : 1202.30
TOTAL DEMAND CONSUMPTION . . : .00
TOTAL READING DAYS . . . . . : 640
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 1
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 58161 CHASE SKOGEN CONSTRUCTION INC
2246 BOOT HILL CT, STE 1
BOZEMAN MT 59715
LOCATION: 239700 4825 GOLDEN GATE AVE
CYCLE/ROUTE: 01-42
STATUS: A
WATER METER NUMBER: 60938035 METER SIZE: 200
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
1/06/20 REG 31 1/20 1/27/20
HCF 2592.20 78.70 .00
12/06/19 REG 31 12/19 12/25/19
HCF 2513.50 78.10 .00
11/05/19 REG 32 11/19 11/25/19
HCF 2435.40 86.80 .00
10/04/19 REG 29 10/19 10/24/19
HCF 2348.60 74.00 .00
9/05/19 REG 28 9/19 9/25/19
HCF 2274.60 64.90 .00
8/08/19 REG 30 8/19 8/26/19
HCF 2209.70 66.80 .00
7/09/19 REG 34 7/19 7/25/19
HCF 2142.90 91.30 .00
6/05/19 REG 29 6/19 6/25/19
HCF 2051.60 80.30 .00
5/07/19 REG 33 5/19 5/24/19
HCF 1971.30 100.70 .00
4/04/19 REG 29 4/19 4/24/19
HCF 1870.60 83.90 .00
3/06/19 REG 28 3/19 3/26/19
HCF 1786.70 85.70 .00
2/06/19 REG 33 2/19 2/26/19
HCF 1701.00 100.60 .00
1/04/19 REG 30 1/19 1/25/19
HCF 1600.40 73.30 .00
12/05/18 REG 33 12/18 12/28/18
HCF 1527.10 95.50 .00
11/02/18 REG 28 11/18 11/27/18
HCF 1431.60 77.00 .00
10/05/18 REG 29 10/18 10/25/18
HCF 1354.60 82.20 .00
9/06/18 REG 34 9/18 9/26/18
HCF 1272.40 78.60 .00
8/03/18 REG 25 8/18 8/27/18
HCF 1193.80 65.70 .00
7/09/18 REG 33 7/18 7/26/18
HCF 1128.10 88.10 .00
6/06/18 REG 33 6/18 6/26/18
HCF 1040.00 106.10 .00
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 2
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 58161 CHASE SKOGEN CONSTRUCTION INC
LOCATION: 239700 4825 GOLDEN GATE AVE
WATER METER NUMBER: 60938035 METER SIZE: 200
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
5/04/18 REG 28 5/18 5/24/18
HCF 933.90 99.20 .00
4/06/18 REG 30 4/18 4/24/18
HCF 834.70 102.50 .00
3/07/18 REG 29 3/18 3/26/18
HCF 732.20 104.40 .00
2/06/18 REG 32 2/18 2/24/18
HCF 627.80 110.80 .00
1/05/18 REG 22 1/18 1/24/18
HCF 517.00 62.40 .00
12/14/17 REG 41 12/17 12/27/17
HCF 454.60 132.90 .00
11/03/17 REG 29 11/17 11/27/17
HCF 321.70 98.00 .00
10/05/17 REG 28 10/17 10/25/17
HCF 223.70 91.10 .00
9/07/17 REG 24 9/17 9/26/17
HCF 132.60 71.20 .00
8/14/17 REG 41 8/17 8/24/17
HCF 61.40 43.54 .00
7/04/17 REG 27 7/17 7/25/17
HCF 17.86 5.46 .00
6/07/17 REG 33 6/17 6/26/17
HCF 12.40 4.00 .00
5/05/17 REG 32 5/17 5/24/17
HCF 8.40 8.36 .00
4/03/17 REG 12 4/17 4/26/17
HCF .04 .04 .00
3/22/17 SET 4/17 4/26/17
HCF .00 .00 .00
TOTALS: 1020 2592.20 .00
AVERAGE DAILY USAGE: 2.54 .00
CONSUMPTION PARAMETERS FOR WATER
EXCEPTION REPORT FLAG . . . . : N
CONSUMPTION ESTIMATE . . . . : .00
DEMAND CONSUMPTION ESTIMATE . : .00
AVERAGE CONSUMPTION . . . . . : 2.75
AVERAGE DEMAND CONSUMPTION . : .00
TOTAL CONSUMPTION . . . . . . : 1757.50
TOTAL DEMAND CONSUMPTION . . : .00
TOTAL READING DAYS . . . . . : 640
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 3
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 58161 CHASE SKOGEN CONSTRUCTION INC
LOCATION: 239700 4825 GOLDEN GATE AVE
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 1
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 59537 PHASE 2 LLC
PO BOX 895
GREAT FALLS VA 22066
LOCATION: 187360 4835 GOLDEN GATE AVE
CYCLE/ROUTE: 01-42
STATUS: A
WATER METER NUMBER: 60936932 METER SIZE: 150
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
1/06/20 REG 31 1/20 1/27/20
HCF 1335.70 36.30 .00
12/06/19 REG 31 12/19 12/25/19
HCF 1299.40 43.20 .00
11/05/19 REG 32 11/19 11/25/19
HCF 1256.20 46.30 .00
10/04/19 REG 29 10/19 10/24/19
HCF 1209.90 40.50 .00
9/05/19 REG 28 9/19 9/25/19
HCF 1169.40 37.70 .00
8/08/19 REG 30 8/19 8/26/19
HCF 1131.70 34.50 .00
7/09/19 REG 34 7/19 7/25/19
HCF 1097.20 35.60 .00
6/05/19 REG 29 6/19 6/25/19
HCF 1061.60 30.60 .00
5/07/19 REG 33 5/19 5/24/19
HCF 1031.00 42.10 .00
4/04/19 REG 29 4/19 4/24/19
HCF 988.90 32.70 .00
3/06/19 REG 28 3/19 3/26/19
HCF 956.20 38.90 .00
2/06/19 REG 33 2/19 2/26/19
HCF 917.30 43.90 .00
1/04/19 REG 30 1/19 1/25/19
HCF 873.40 28.00 .00
12/05/18 REG 33 12/18 12/28/18
HCF 845.40 38.50 .00
11/02/18 REG 28 11/18 11/27/18
HCF 806.90 34.80 .00
10/05/18 REG 29 10/18 10/25/18
HCF 772.10 33.60 .00
9/06/18 REG 34 9/18 9/26/18
HCF 738.50 31.70 .00
8/03/18 REG 25 8/18 8/27/18
HCF 706.80 20.30 .00
7/09/18 REG 33 7/18 7/26/18
HCF 686.50 29.00 .00
6/06/18 REG 33 6/18 6/26/18
HCF 657.50 27.40 .00
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 2
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 59537 PHASE 2 LLC
LOCATION: 187360 4835 GOLDEN GATE AVE
WATER METER NUMBER: 60936932 METER SIZE: 150
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
5/04/18 REG 28 5/18 5/24/18
HCF 630.10 23.70 .00
4/06/18 REG 30 4/18 4/24/18
HCF 606.40 26.10 .00
3/07/18 REG 29 3/18 3/26/18
HCF 580.30 34.00 .00
2/06/18 REG 32 2/18 2/24/18
HCF 546.30 39.10 .00
1/05/18 REG 22 1/18 1/24/18
HCF 507.20 16.80 .00
12/14/17 REG 41 12/17 12/27/17
HCF 490.40 42.40 .00
11/03/17 REG 29 11/17 11/27/17
HCF 448.00 26.70 .00
10/05/17 REG 28 10/17 10/25/17
HCF 421.30 28.00 .00
9/07/17 REG 24 9/17 9/26/17
HCF 393.30 21.90 .00
8/14/17 REG 41 8/17 8/24/17
HCF 371.40 34.82 .00
7/04/17 REG 27 7/17 7/25/17
HCF 336.58 18.98 .00
6/07/17 INT 7/17 7/25/17
HCF 317.60 .00 .00
TOTALS: 943 1018.10 .00
AVERAGE DAILY USAGE: 1.07 .00
CONSUMPTION PARAMETERS FOR WATER
EXCEPTION REPORT FLAG . . . . : N
CONSUMPTION ESTIMATE . . . . : .00
DEMAND CONSUMPTION ESTIMATE . : .00
AVERAGE CONSUMPTION . . . . . : 1.14
AVERAGE DEMAND CONSUMPTION . : .00
TOTAL CONSUMPTION . . . . . . : 729.30
TOTAL DEMAND CONSUMPTION . . : .00
TOTAL READING DAYS . . . . . : 640
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 1
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 57859 CHASE SKOGEN CONSTRUCTION INC
2246 BOOTHILL COURT STE 1
BOZEMAN MT 59715
LOCATION: 239710 4845 GOLDEN GATE AVE
CYCLE/ROUTE: 01-42
STATUS: A
WATER METER NUMBER: 60936936 METER SIZE: 150
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
1/06/20 REG 31 1/20 1/27/20
HCF 1087.20 30.10 .00
12/06/19 REG 31 12/19 12/25/19
HCF 1057.10 36.90 .00
11/05/19 REG 32 11/19 11/25/19
HCF 1020.20 37.00 .00
10/04/19 REG 29 10/19 10/24/19
HCF 983.20 30.40 .00
9/05/19 REG 28 9/19 9/25/19
HCF 952.80 28.40 .00
8/08/19 REG 30 8/19 8/26/19
HCF 924.40 22.60 .00
7/09/19 REG 34 7/19 7/25/19
HCF 901.80 28.70 .00
6/05/19 REG 29 6/19 6/25/19
HCF 873.10 32.90 .00
5/07/19 REG 33 5/19 5/24/19
HCF 840.20 32.40 .00
4/04/19 REG 29 4/19 4/24/19
HCF 807.80 29.10 .00
3/06/19 REG 28 3/19 3/26/19
HCF 778.70 31.00 .00
2/06/19 REG 33 2/19 2/26/19
HCF 747.70 31.20 .00
1/04/19 REG 30 1/19 1/25/19
HCF 716.50 2.70 .00
12/05/18 REG 33 12/18 12/28/18
HCF 689.50 4.03 .00
11/02/18 REG 28 11/18 11/27/18
HCF 649.20 3.57 .00
10/05/18 REG 29 10/18 10/25/18
HCF 613.50 3.28 .00
9/06/18 REG 34 9/18 9/26/18
HCF 580.70 3.93 .00
8/03/18 REG 25 8/18 8/27/18
HCF 541.40 2.89 .00
7/09/18 REG 33 7/18 7/26/18
HCF 512.50 3.65 .00
6/06/18 REG 33 6/18 6/26/18
HCF 476.00 3.14 .00
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 2
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 57859 CHASE SKOGEN CONSTRUCTION INC
LOCATION: 239710 4845 GOLDEN GATE AVE
WATER METER NUMBER: 60936936 METER SIZE: 150
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
5/04/18 REG 28 5/18 5/24/18
HCF 444.60 3.01 .00
4/06/18 REG 30 4/18 4/24/18
HCF 414.50 3.11 .00
3/07/18 REG 29 3/18 3/26/18
HCF 383.40 3.34 .00
2/06/18 REG 32 2/18 2/24/18
HCF 350.00 3.40 .00
1/05/18 REG 22 1/18 1/24/18
HCF 316.00 2.19 .00
12/14/17 REG 41 12/17 12/27/17
HCF 294.10 4.57 .00
11/03/17 REG 29 11/17 11/27/17
HCF 248.40 3.14 .00
10/05/17 REG 28 10/17 10/25/17
HCF 217.00 3.45 .00
9/07/17 REG 24 9/17 9/26/17
HCF 182.50 3.74 .00
8/14/17 REG 41 8/17 8/24/17
HCF 145.10 4.24 .00
7/04/17 REG 27 7/17 7/25/17
HCF 102.69 2.75 .00
6/07/17 REG 33 6/17 6/26/17
HCF 75.20 5.80 .00
5/05/17 REG 32 5/17 5/24/17
HCF 17.20 .73 .00
4/03/17 REG 19 4/17 4/25/17
HCF 9.90 .99 .00
3/15/17 SET 4/17 4/25/17
HCF .00 .00 .00
TOTALS: 1027 442.35 .00
AVERAGE DAILY USAGE: .43 .00
CONSUMPTION PARAMETERS FOR WATER
EXCEPTION REPORT FLAG . . . . : N
CONSUMPTION ESTIMATE . . . . : .00
DEMAND CONSUMPTION ESTIMATE . : .00
AVERAGE CONSUMPTION . . . . . : .63
AVERAGE DEMAND CONSUMPTION . : .00
TOTAL CONSUMPTION . . . . . . : 400.90
TOTAL DEMAND CONSUMPTION . . : .00
TOTAL READING DAYS . . . . . : 640
PREPARED 2/24/20 ACCOUNT CONSUMPTION HISTORY PAGE: 3
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 57859 CHASE SKOGEN CONSTRUCTION INC
LOCATION: 239710 4845 GOLDEN GATE AVE
PREPARED 2/20/20 ACCOUNT CONSUMPTION HISTORY PAGE: 1
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 47089 TOWN PUMP
PO BOX 6000
BUTTE MT 59702
LOCATION: 218740 5050 S COTTONWOOD RD
CYCLE/ROUTE: 01-42
STATUS: A
WATER METER NUMBER: 60864085 METER SIZE: 200
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
12/06/19 REG 31 12/19 12/25/19
HCF 9040.90 33.30 .00
11/05/19 REG 32 11/19 11/25/19
HCF 9007.60 35.30 .00
10/04/19 REG 29 10/19 10/24/19
HCF 8972.30 113.90 .00
9/05/19 REG 28 9/19 9/25/19
HCF 8858.40 363.60 .00
8/08/19 REG 30 8/19 8/26/19
HCF 8494.80 549.90 .00
7/09/19 REG 34 7/19 7/25/19
HCF 7944.90 507.50 .00
6/05/19 REG 29 6/19 6/25/19
HCF 7437.40 99.20 .00
5/07/19 REG 33 5/19 5/24/19
HCF 7338.20 46.10 .00
4/04/19 REG 29 4/19 4/24/19
HCF 7292.10 39.20 .00
3/06/19 REG 28 3/19 3/26/19
HCF 7252.90 34.80 .00
2/06/19 REG 33 2/19 2/26/19
HCF 7218.10 42.80 .00
1/04/19 REG 30 1/19 1/25/19
HCF 7175.30 40.80 .00
12/05/18 REG 33 12/18 12/28/18
HCF 7134.50 41.70 .00
11/02/18 REG 28 11/18 11/27/18
HCF 7092.80 42.20 .00
10/05/18 REG 29 10/18 10/25/18
HCF 7050.60 145.60 .00
9/06/18 REG 34 9/18 9/26/18
HCF 6905.00 635.90 .00
8/03/18 REG 25 8/18 8/27/18
HCF 6269.10 338.00 .00
7/09/18 REG 33 7/18 7/26/18
HCF 5931.10 337.40 .00
6/06/18 REG 33 6/18 6/26/18
HCF 5593.70 260.40 .00
5/04/18 REG 28 5/18 5/24/18
HCF 5333.30 33.30 .00
PREPARED 2/20/20 ACCOUNT CONSUMPTION HISTORY PAGE: 2
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 47089 TOWN PUMP
LOCATION: 218740 5050 S COTTONWOOD RD
WATER METER NUMBER: 60864085 METER SIZE: 200
READING BILLING ACTUAL ACTUAL ORIGINAL ORIGINAL
DATE TYPE DAYS PERIOD/DATE READING CONSUMPTION DEMAND CONSUMPTION DEMAND
-----------------------------------------------------------------------------------------------------------
4/06/18 REG 30 4/18 4/24/18
HCF 5300.00 31.30 .00
3/07/18 REG 29 3/18 3/26/18
HCF 5268.70 27.60 .00
2/06/18 REG 32 2/18 2/24/18
HCF 5241.10 30.60 .00
1/05/18 REG 22 1/18 1/24/18
HCF 5210.50 20.20 .00
12/14/17 REG 41 12/17 12/27/17
HCF 5190.30 43.90 .00
11/03/17 REG 29 11/17 11/27/17
HCF 5146.40 38.50 .00
10/05/17 REG 28 10/17 10/25/17
HCF 5107.90 154.40 .00
9/07/17 REG 35 9/17 9/26/17
HCF 4953.50 562.10 .00
8/03/17 REG 27 8/17 8/24/17
HCF 4391.40 444.70 .00
7/07/17 REG 30 7/17 7/25/17
HCF 3946.70 300.80 .00
6/07/17 REG 33 6/17 6/26/17
HCF 3645.90 152.10 .00
5/05/17 REG 32 5/17 5/24/17
HCF 3493.80 31.30 .00
4/03/17 REG 31 4/17 4/25/17
HCF 3462.50 29.30 .00
3/03/17 REG 30 3/17 3/27/17
HCF 3433.20 24.20 .00
2/01/17 REG 28 2/17 2/24/17
HCF 3409.00 18.90 .00
1/04/17 REG 33 1/17 1/25/17
HCF 3390.10 22.60 .00
TOTALS: 1099 5673.40 .00
AVERAGE DAILY USAGE: 5.16 .00
CONSUMPTION PARAMETERS FOR WATER
EXCEPTION REPORT FLAG . . . . :
CONSUMPTION ESTIMATE . . . . : .00
DEMAND CONSUMPTION ESTIMATE . : .00
AVERAGE CONSUMPTION . . . . . : 5.89
AVERAGE DEMAND CONSUMPTION . : .00
TOTAL CONSUMPTION . . . . . . : 3771.10
PREPARED 2/20/20 ACCOUNT CONSUMPTION HISTORY PAGE: 3
PROGRAM UT475L
CITY OF BOZEMAN
CUSTOMER: 47089 TOWN PUMP
LOCATION: 218740 5050 S COTTONWOOD RD
TOTAL DEMAND CONSUMPTION . . : .00
TOTAL READING DAYS . . . . . : 640