2023-06-05_R2 - CO_PKSI - BCWC_Water Wastewater Memo.pdf

June 5, 2023

Mr. Phillip Krieble, Civil Engineer

USDA Forest Service, Buffalo Creek Work Center

18046 CO Road 126

Pine, CO 80470

RE: USDA Forest Service Buffalo Creek Work Center – Water and Wastewater Capacity

Memorandum

JVA Job No. 1190e

Dear Phillip:

The USDA Forest Service Buffalo Creek Work Center (Work Center) located in Pine, Colorado provides fire protection and emergency response services to the surrounding communities. The

Work Center is currently staffed by twelve personnel, and can accept an additional eighty on site emergency staff with trucked in port-a-lets and supplies. Wastewater generated at the Work Center is treated with two Jefferson County Environmental Health (Jeffco Health) approved onsite wastewater treatment systems (OWTS). The original OWTS (OWTS A) was designed for the home, and the office. Around 2001, the Work Center added the engine and storage building, and the barracks building. That same year, a second OWTS (OWTS B) was constructed to serve the barracks building, but the engine and storage building connected to existing OWTS A. OWTS A is currently functioning, and OWTS B requires float and pump repairs to be operational. OWTS

A and OWTS B appear to have capacity to support an increase in staff from 12 to 28 people without the installation of additional unit processes (i.e., septic tank, soil treatment area), however both

OWTS are past the standard 20-year operation expectancy and the original Jeffco Health permit files are incomplete.

Municipal water for the Work Center is provided by the Buffalo Creek Water District (District) via a 4-inch main. The water flows and pressure supplied from the main is adequate for current capacities and uses, and appears to have capacity for an increase in staff without an additional service tap. Instantaneous demands across the site are required from a Mechanical Engineer and/or

Architect to confirm if the calculated 270 gpm flowrate is adequate for the increased capacity.

Additional conversations with the District are warranted to confirm instantaneous demand and storage availability. The 4-inch fire hydrant and 55,000 gallon storage tank are assumed to be adequate for current fire demands, however further conversations with the fire marshal are needed.

EXISTING WATER AND WASTEWATER INFRASTRUCTURE

EXISTING WATER INFRASTRUCTURE

The District has a small public water system (PWS ID: CO0130015) with treated water storage. From the 55,000 gallon water storage tank, water flows through 4-inch distribution piping to residents in Buffalo Creek and the Work Center. We have no information on the bury depth or condition of these pipes. There are several water service lines throughout the Work

Center and several water meters that measure usage for the various buildings. There is no indication that existing 1-inch service lines show

Image 1 – 4-inch Fire Hydrant

USDA Forest Service Buffalo Creek

Water & Wastewater Capacity Memorandum

6/5/2023 any sign of reduced capacity or concerns for reliability. There is a 4-inch fire hydrant at the south side of the Work Center, but no hydrant testing info was available from the District or Fire

Department.

EXISTING WASTEWATER INFRASTRUCTURE

OWTS A was likely installed when the original home and office were constructed, no design drawings or permit documents could be found from Jeffco Health, but the Work Center’s address is shown. The gravity collection system was not investigated during the site visit, and Staff didn’t comment on major maintenance issues thus far. At the time of the site visit(s), OWTS A appeared to be functional. Float and pump operations were field tested by a National

Association of Wastewater Technician (NAWT) certified inspector and were found to be operational, see Attachment A for inspection reports. Septic tanks, risers, and lids were in good condition (no major signs of corrosion), but did show signs of pipe settlement around the tank(s).

The soil treatment area (STA) appeared to be functioning, and there were no signs of surfacing effluent or visible growth of biomat.

Wastewater generated from the house flows from a stub-out on the northeast side to an adjacent 1,250-gallon two compartment septic tank (Home Tank), see

Table 1 below. The office wastewater flows from the northwest side of the building to the same Home Tank for preliminary treatment. The engine and storage building wastewater flows from a stub-out on the southwest side of the building to an adjacent 1,000-gallon two compartment septic tank (Engine/Storage Septic Tank). In these septic tanks, solids, fats, oils and grease stratify in the first compartment and biochemical oxygen demand (BOD5) and total suspended solids (TSS) reduce in concentration. Septic tank effluent continues to the second chamber of the tank where further TSS and BOD5 reduction occurs. In the effluent lift station, effluent from the Home Tank and Engine and Storage Tank blends, and is pumped to the original mounded STA on the western side of the property. The control panel is furnished with a hand-off-auto (HOA) switch to control pump operation, float inputs, a pump run timer, and a visual and audio local alarm system. The design flow of OWTS A with corresponding calculations is unknown, but a calculated estimation is included in the wastewater capacity and demands section.

Table 1 – Existing Onsite Wastewater Treatment System A

Parameters & Unit Processes

Description

Septic Tanks

Home Septic Tank – 1,250-gallon double compartment septic tank Engine/Storage Septic Tank – 1,000-gallon double compartment septic tank with effluent filter (traffic rated concrete) Home Effluent Lift Station – 1,000-gallon single compartment tank

Effluent Pumps Home Effluent Pumps – Quantity:1

Control Panel Home Control Panel – Quantity:1, elapsed timer, visual and audio alarm

Soil Treatment Area Original mounded soil treatment area – approximately 1,350 square feet Unknown distribution system

Image 2 – House with OWTS A Tanks in foreground

6/5/2023

OWTS B was installed in 2001 to serve the newly constructed barracks, see Attachment B for design drawings. At the time of the NAWT inspection, OWTS B was not sending flow to the STA. Float and pump operations were field tested, which showed one pump and several floats out of service.

Tanks, risers, and lids were in good condition. The ductile iron process piping within the effluent lift station was showing significant signs of corrosion and the pumps could not be removed without specialized equipment. The 2001 mounded STA appeared to be functioning, and there were no signs of surfacing effluent or visible biomat growth.

Wastewater from the barracks gravity flows from two separate stub-outs to two parallel septic tanks (Septic Tank A and B) on the northwest side of the building, see Table 2 below. Septic

Tanks A and B are two compartment septic tanks with effluent filters. Septic tank treatment is the same as what has been described from OWTS A’s septic tanks. In the effluent lift station, effluent from Septic Tanks A and B flow through perforated equalization piping, blends in the tank, and is pumped to the 2001 mounded STA on the western side of the property via two submersible effluent pumps. Each pump sends effluent through a dedicated forcemain and corresponding zone on the 2001 mounded STA. The pumps can operate simultaneously from the same float tree in the effluent lift station. The float tree has a high-level, timer override, low level, and redundant off float. The pumps and floats are powered and controlled by an Orenco

Duplex control panel, which is furnished with a HOA switch, float inputs, timer settings, and a visual and audio local alarm system. The design flow of OWTS B with corresponding calculations are unknown, but a calculated estimation is included in the wastewater capacity and demands section that follows.

Table 2 – Existing Onsite Wastewater Treatment System B

Parameters & Unit Processes

Description

Septic Tanks

Septic Tank A – 2,000-gallon double compartment septic tank with Orenco effluent filter and high-water alarm (traffic rated concrete) Septic Tank B – 1,200-gallon double compartment septic tank with Orenco effluent filter and high-water alarm (traffic rated concrete) Effluent Lift Station – 1,200-gallon single compartment septic tank with dual Hydromatic effluent pumps and dual forcemains (traffic rated concrete)

Effluent Pumps Hydromatic 1.5 HP submersible effluent pumps (Quantity: 2)

Control Panel Orenco Control Panel Model MVP-DAX2 PTRO SA FL

Soil Treatment Area 2001 Mounded soil treatment area approximately 1,300 square feet Two zones, each 65’x10’ 1.5-inch pipe and drain gravel distribution system

WATER AND WASTEWATER CAPACITIES & DEMANDS

WATER CAPACITIES & DEMANDS

Water is monitored monthly by the District from flow meters located at the hydrant, office, barracks, house, and the engine and storage building, see Attachment C. Water meter data from

Image 3 – Barracks with OWTS B Tanks

6/5/2023 the hydrant was omitted since it’s not representative of consumptive flows. It’s assumed that hydrant testing, fire flow, and emergency storage are adequate for current capacities, however further conversations with the fire marshal are needed. The engine and storage building flow data showed high use in the winter months of 2021, but was later attributed to water loss from a frozen pipe. Overall, combined water meter data showed approximately 7,500 gallons of water use per month across the Work Center.

To estimate daily water demands, monthly water meter readings were compared with regulatory wastewater values. To account for water consumptive uses, regulatory wastewater values were increased by ten percent. Water for the house, barracks, and future barracks was assumed to be consistent with a boarding and rooming house with users absent during working hours, which has a Jeffco Health wastewater flowrate of 50 gpcd (55 gpcd water). The engine and storage building and office was assumed to be used as office spaces by all staff, which corresponds to the

Jeffco Health office per capita flowrate of 15 gpcd (16.5 gpcd water). As seen in Table 3 below, a calculated daily water demand of 2,002 gpd is needed for a future staff population of 28.

Based on monthly water use of 7,500 gallons and a calculated daily demand of 2,002 gpd, the values show that regulatory derived daily demands could be eight times higher compared to actual use recorded on site. Additional peaking factors were not applied to the daily demands, based on this low monthly water use data.

Instantaneous water flow from the District’s water system was also calculated. The design variables were 4,500 linear feet of 4-inch diameter ductile iron pipe, an elevation difference of

325 feet between the District’s water storage tank and Work Center, an assumed pressure of 60 psi at the Work Center, and no other taps receiving flow. Based on these conditions, the water main could satisfy an instantaneous demand of 270 gpm to the Work Center, see Attachment D for calculations.

Overall, the water system appears to have adequate capacity for current and future demands without additional service taps. Water demands will need to be met with the District’s 55,000 gallon potable water storage tank, which should be attainable. Future instantaneous demand calculations and conversations with the District are required to confirm instantaneous demand availability.

Table 3 – Future Staff Water Demands

Building Jefferson County Per Capita Flowrate w/

Consumption (gpcd) Occupancy

Daily Water demand (gpd)

House 55 2 110

Engine and Storage

16.5 14 231

Office 16.5 14 231

Future Barracks 55 10 550

Barracks 55 16 880

Total 2,002

6/5/2023

WASTEWATER CAPACITIES & DEMANDS

Existing USDA Forest Service records showed design capacity of 3,250 gpd for OWTS A and

2,250 gpd for OWTS B, but corresponding calculations were not provided. Wastewater design capacities were also not listed in the Jeffco Health database. To calculate wastewater flowrates for OWTS A and B per Jeffco Health standards, assumed uses per building were paired with the associated per capita flowrates from the Jeffco Health OWTS Regulations, and assumed future populations. Wastewater generated from occasional large staff events was assumed to be managed with trucked in port-a-lets.

Wastewater generated from the house, barracks, and future barracks was assumed to be consistent with a boarding and rooming house with users during working hours, which has a

Jeffco Health wastewater flowrate of 50 gpcd. The engine and storage building and office was assumed to be used as office spaces by all staff, which corresponds to the Jeffco Health office per capita flowrate of 15 gpcd. As seen in Table 4 below, for an increase in occupancy to 28 staff the calculated design capacity for OWTS A is 1,020 gpd and OWTS B is 800 gpd.

Table 4 – Future Staff Wastewater Design Capacity Calculations

OWTS Building Jefferson County Per

Capita Flowrate (gpcd) Occupancy

Design Capacity per building (gpd)

Calculated Design Capacity (gpd)

A

House 50 2 100

1,020

Engine and Storage

15 14 210

Office 15 14 210

Future Barracks

50 10 500

B Barracks 50 16 800 800

Based on a calculated design flowrate of 1,020 gpd, OWTS A original design criteria was compared with current Jefferson County OWTS Regulations. As seen in Table 5 below, the design capacity, septic tanks, and soil treatment area are within current regulations for a future staff population of 28. A long term acceptance rate (LTAR) of 0.8 gpd/ft2 was assumed for the mounded STA, which is consistent with an imported secondary sand given in the Jeffco Health regulations.

Table 5 – OWTS A Future Staff Wastewater Design Comparison

Parameter USDA Forest

Service OWTS Design Criteria

2023 OWTS

Future Design

OWTS A Future Design in Conformance with Original Design and 2023 Jefferson County

OWTS Regulations

Design Capacity

3,250 gpd 1,020 gpd

Yes Existing design capacity of 3,250 gpd is more than calculated design capacity of 1,020 gpd. 1,020 gpd less than 2,000 gpd Jeffco max requirement

Septic Tank Sizing

3,250 gal total 3,250 gal total Yes Minimum 48-hr total HRT of 2,040 gallons fulfilled Minimum 24-hr first compartment HRT of 1,020 gallons fulfilled.

1,250 gal tank - 850 gal first compartment

1,250 gal tank - 850 gal first compartment

6/5/2023

Parameter USDA Forest

Service OWTS Design Criteria

2023 OWTS

Future Design

OWTS A Future Design in Conformance with Original Design and 2023 Jefferson County

OWTS Regulations

1,000 gal tank - 640 gal first compartment

1,000 gal tank - 640 gal first compartment

1,200 gal effluent lift station

1,000 gal lift station

Soil Treatment Area Sizing

STA installed footprint = 1,350 square feet

A = Q/LTAR

= 1,020/0.8 = 1,275 SF (min)

Yes Minimum footprint is 1,275 SF, and installed footprint is 1,350 SF

Based on a calculated design flowrate of 800 gpd, OWTS B original design criteria was compared with current Jefferson County OWTS Regulations. As seen in Table 6 below, the design capacity, septic tanks, and soil treatment area are within current regulations for a future staff population of 28. A long term acceptance rate (LTAR) of 0.8 gpd/ft2 was assumed for the mounded STA, which is consistent with an imported secondary sand given in the Jeffco Health regulations.

Table 6 – OWTS B Future Staff Wastewater Design Comparison

Parameter USDA Forest

Service OWTS Design Criteria

2023 OWTS

Future Design

OWTS B Future Design in Conformance with Original Design and 2023 Jefferson County

OWTS Regulations

Design Capacity

2,250 gpd 800 gpd

Yes Existing design capacity of 2,250 gpd is more than calculated design capacity of 900 gpd. 1,800 gpd less than 2,000 gpd max Jeffco requirement

Septic Tank Sizing

4,400 gal total 4,400 gal total

Yes Minimum 48-hr total HRT of 1,800 gallons fulfilled Minimum 24-hr first compartment HRT of 900 gallons fulfilled.

2,000 gal tank – 1,200 gal first compartment

2,000 gal tank – 1,200 gal first compartment

1,200 gal tank - 845 gal first compartment

1,200 gal tank - 845 gal first compartment

1,200 gal effluent lift station

1,200 gal effluent lift station

Soil Treatment Area Sizing

STA installed footprint = 1,300 square feet

A = Q/LTAR

= 900/0.8 = 1,125 SF (min)

Yes Minimum footprint is 1,125 SF, and installed footprint is 1,300 SF

CONCLUSION AND NEXT STEPS

Based on the NAWT inspection, OWTS A system components are in good condition and don’t require additional equipment to meet current regulations at the higher population of 28. OWTS B system components need repair (pumps, floats, process piping), but the tanks and STA are in good condition. No official Jeffco Health permit documents or original design calculations could be found for either OWTS; discussions with Jeffco Health are required to confirm design approach and address the lack of permits.

The existing wastewater treatment systems (OWTS A and B) appear to be sized appropriately for a 28-person expansion, without additional unit processes (i.e. septic tank, STA). The 28-person

6/5/2023 capacity was derived from regulatory per capita flowrates, which are known to be conservatively high. To determine an actual per capita flowrate for the Work Center, daily occupancy can be paired with daily water usage over a one-year period and presented to Jeffco Health to rerate the per capita flowrate. Based on similar facilities, the Work Center per capita flowrate is likely going to be lower than the calculated daily demand, which could allow for additional capacity.

It’s recommended to begin monitoring daily flow and population to the Work Center for one year.

The existing water infrastructure appears to be functioning correctly and is oversized for future demands. Instantaneous demands across the site are required from a Mechanical Engineer and/or

Architect to confirm if the calculated 270 gpm delivery flowrate is adequate. Additional conversations with the District are warranted to confirm instantaneous demand and storage availability. The 4-inch fire hydrant and 55,000 gallon storage tank are assumed to be adequate for current fire demands, however further conversations with the fire marshal are needed.

Sincerely, JVA, INCORPORATED

By: __________________________________

James Cochran, PE

Senior Project Engineer

Attachments: Attachment A – NAWT Inspection Reports

Attachment B – Existing Drawings

Attachment C – Water Meter Flow Data

Attachment D – Water Distribution Flow Calculation

CC: Kevin Tone, PE

ATTACHMENT A – NAWT INSPECTION REPORTS

Search Septic - Septic System Inspection Report

DISCLAIMER: THIS REPORT INDICATES THE PRESENT CONDITION OF THE PRIVATE ON-SITE SUBSURFACE SEWAGE DISPOSAL SYSTEM BASED ON RECOMMENDED INSPECTION PROCEDURES OUTLINED IN THIS REPORT. THE RESULTS OF THIS INSPECTION DOES NOT GUARANTEE OR WARRANTY FUTURE PERFORMANCE. THE INSPECTION REPORT EXCLUDES AND DOES NOT INTEND TO COVER COMPONENTS THAT ARE INACCESSIBLE (BY

REASONABLE HAND DIGGING) OR ARE OTHERWISE NOT OBSERVABLE.

General Information

PASS FAIL NA NOTES

Initial Condition X Both structures share 1250 gal 2 compartment tank Controls / Panel X Primary Septic Tank X 1250 gallon 2 compartment tank Secondary Septic Tank X 1250 gallon lift station tank HLTS Tank / POD X STA (leach field) X Older smaller STA mound system Septic tank lids X Septic tank risers X Effluent filter X No effluent filter installed in 2nd compartment Siphon or Pump Cond. X Tested and verified pump operation Float conditions X High water alarm X Tested and verified operation of alarm Snow cover X Noticeable odor X Improper vegetation X Noticeable effluent X Standing water X

General Observations

Approximate distance WELL to STA: NA

Inspection Results

__X__ Inspection passed (no repairs needed)

____ Inspection passed (minor repairs or maintenance performed at time of inspection:

____ Inspection did not pass (repairs required)

____ Inspection did not pass (needs further investigation)

Additional Comments:

The existing office and existing house buildings both gravity flow to the main 1,250 gallon septic tank.

Search Septic - Septic System Inspection Report

DISCLAIMER: THIS REPORT INDICATES THE PRESENT CONDITION OF THE PRIVATE ON-SITE SUBSURFACE SEWAGE DISPOSAL SYSTEM BASED ON RECOMMENDED INSPECTION PROCEDURES OUTLINED IN THIS REPORT. THE RESULTS OF THIS INSPECTION DOES NOT GUARANTEE OR WARRANTY FUTURE PERFORMANCE. THE INSPECTION REPORT EXCLUDES AND DOES NOT INTEND TO COVER COMPONENTS THAT ARE INACCESSIBLE (BY

REASONABLE HAND DIGGING) OR ARE OTHERWISE NOT OBSERVABLE.

General Information

Initial Condition X Controls / Panel X Primary Septic Tank X 1,000 gallon 2 compartment traffic rated tank Secondary Septic Tank X Shared 1000 gallon lift station tank HLTS Tank / POD X STA (leach field) X Smaller STA mound (shared with house / office) Septic tank lids X Septic tank risers X Effluent filter X Siphon or Pump Cond. X Float conditions X High water alarm X Snow cover X Noticeable odor X Improper vegetation X

General Observations

Approximate distance WELL to STA: NA

Inspection Results

__X__ Inspection passed (no repairs needed)

____ Inspection passed (minor repairs or maintenance performed at time of inspection:

____ Inspection did not pass (repairs required)

____ Inspection did not pass (needs further investigation)

Additional Comments:

Search Septic - Septic System Inspection Report

DISCLAIMER: THIS REPORT INDICATES THE PRESENT CONDITION OF THE PRIVATE ON-SITE SUBSURFACE SEWAGE DISPOSAL SYSTEM BASED ON RECOMMENDED INSPECTION PROCEDURES OUTLINED IN THIS REPORT. THE RESULTS OF THIS INSPECTION DOES NOT GUARANTEE OR WARRANTY FUTURE PERFORMANCE. THE INSPECTION REPORT EXCLUDES AND DOES NOT INTEND TO COVER COMPONENTS THAT ARE INACCESSIBLE (BY

REASONABLE HAND DIGGING) OR ARE OTHERWISE NOT OBSERVABLE.

General Information

Initial Condition X Pump and float issues Controls / Panel X Visual alarm lights not operable Primary Septic Tank X 2,000 gal tank and 1,250 gal tank Secondary Septic Tank X 1,000 gal pump tank HLTS Tank / POD X STA (leach field) X Large mound STA 150 ft x 10 ft Septic tank lids X Recommend installing more screws in lids Septic tank risers X Effluent filter X Clean filters at time of septic tank pumping Siphon or Pump Cond. X Pump 1 functions, Pump 2 inoperable Float conditions X 2-3 floats not working High water alarm X Pump tank alarm works, other 2 tanks unknown Snow cover X Noticeable odor X Improper vegetation X

General Observations

Approximate distance WELL to STA: NA

Inspection Results

____ Inspection passed (no repairs needed)

____ Inspection passed (minor repairs or maintenance performed at time of inspection:

____ Inspection did not pass (repairs required)

__X__ Inspection did not pass (needs further investigation)

Additional Comments:

ATTACHMENT B – EXISTING DRAWINGS

ATTACHMENT C – WATER METER FLOW DATA

Account

Number

Building StartDate EndDate ServiceD ays

Cost/Serv ice Day

Consump tion

UnitType Reported

Units

Reported

Types

ServiceAddress ServiceCity ServiceSt ate

ServiceZi p

InvoiceLink

85 Office 2/13/2021 3/12/2021 27 $2.19 2,700.00 Gal 2.7 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=296828&invoiceid=3830938

85 Office 3/12/2021 4/7/2021 26 $2.50 3,602.00 Gal 3.602 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=296828&invoiceid=3887012

85 Office 4/7/2021 5/13/2021 36 $1.68 2,900.00 Gal 2.9 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=296828&invoiceid=3903118

85 Office 5/13/2021 6/11/2021 29 $2.22 3,500.00 Gal 3.5 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=296828&invoiceid=3938622

85 Office 6/15/2021 7/15/2021 30 $2.08 3,200.00 Gal 3.2 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=296828&invoiceid=3988061

85 Office 8/11/2021 9/13/2021 33 $1.38 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=296828&invoiceid=4048215

125 Hydrant 2/13/2021 3/12/2021 27 $1.56 100 Gal 0.1 kGal Co Rd 126 Morrison CO 80465 https://app.bruin.com/invoice/detail?clientid=83784&accountid=295898&invoiceid=3831681

125 Hydrant 3/12/2021 4/7/2021 26 $1.65 200 Gal 0.2 kGal Co Rd 126 Morrison CO 80465 https://app.bruin.com/invoice/detail?clientid=83784&accountid=295898&invoiceid=3886947

125 Hydrant 4/7/2021 5/13/2021 36 $1.23 400 Gal 0.4 kGal Co Rd 126 Morrison CO 80465 https://app.bruin.com/invoice/detail?clientid=83784&accountid=295898&invoiceid=3903351

125 Hydrant 5/13/2021 6/11/2021 29 $1.48 200 Gal 0.2 kGal Co Rd 126 Morrison CO 80465 https://app.bruin.com/invoice/detail?clientid=83784&accountid=295898&invoiceid=3938616

125 Hydrant 6/11/2021 7/14/2021 33 $1.32 Co Rd 126 Morrison CO 80465 https://app.bruin.com/invoice/detail?clientid=83784&accountid=295898&invoiceid=3987178

125 Hydrant 7/14/2021 8/11/2021 28 $1.51 Co Rd 126 Morrison CO 80465 https://app.bruin.com/invoice/detail?clientid=83784&accountid=295898&invoiceid=4012266

125 Hydrant 8/11/2021 9/13/2021 33 $1.30 Co Rd 126 Morrison CO 80465 https://app.bruin.com/invoice/detail?clientid=83784&accountid=295898&invoiceid=4048240

126 Ranger House 2/13/2021 3/12/2021 27 $1.54 18046 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297280&invoiceid=3831793

126 Ranger House 3/12/2021 4/7/2021 26 $1.60 18046 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297280&invoiceid=3886430

126 Ranger House 4/7/2021 5/13/2021 36 $1.15 18046 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297280&invoiceid=3903344

126 Ranger House 5/13/2021 6/11/2021 29 $1.77 1,500.00 Gal 1.5 kGal 18046 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297280&invoiceid=3938820

126 Ranger House 6/15/2021 7/14/2021 29 $2.15 18046 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297280&invoiceid=3987066

126 Ranger House 7/14/2021 8/11/2021 28 $1.48 18046 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297280&invoiceid=4012297

126 Ranger House 8/11/2021 9/13/2021 33 $1.47 18046 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297280&invoiceid=4048273

131 Engine Storage 2/13/2021 3/12/2021 27 $4.48 11,500.00 Gal 11.5 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297302&invoiceid=3831606

131 Engine Storage 3/12/2021 4/7/2021 26 $3.36 6,900.00 Gal 6.9 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297302&invoiceid=3886416

131 Engine Storage 4/1/2021 4/30/2021 29 $1.97 2,402.00 Gal 2.402 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297302&invoiceid=3887128

131 Engine Storage 5/1/2021 5/31/2021 30 $1.51 600 Gal 0.6 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297302&invoiceid=3903411

131 Engine Storage 7/1/2021 7/31/2021 30 $1.80 0 Gal 0 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297302&invoiceid=3985927

131 Engine Storage 8/11/2021 9/13/2021 33 $1.69 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297302&invoiceid=4048262

132 Barracks 2/13/2021 3/12/2021 27 $1.75 900 Gal 0.9 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297322&invoiceid=3831666

132 Barracks 3/12/2021 4/7/2021 26 $2.20 2,400.00 Gal 2.4 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297322&invoiceid=3885811

132 Barracks 4/7/2021 5/13/2021 36 $1.95 4,400.00 Gal 4.4 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297322&invoiceid=3903355

132 Barracks 5/13/2021 6/11/2021 29 $2.24 3,600.00 Gal 3.6 kGal 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297322&invoiceid=3938608

132 Barracks 6/15/2021 7/14/2021 29 $2.06 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297322&invoiceid=3987158

132 Barracks 7/14/2021 8/11/2021 28 $2.23 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297322&invoiceid=4012328

132 Barracks 8/11/2021 9/13/2021 33 $2.03 18042 Co Rd 126 Buffalo Creek CO 80425 https://app.bruin.com/invoice/detail?clientid=83784&accountid=297322&invoiceid=4048268

5:42 PM

10/15/22

Accrual Basis

BUFFALO CREEK WATER DISTRICT

Item QuickReport January 1 through October 15, 2022

BUFFALO CREEK WATER DISTRICT

USDA FOREST SERVICE USE

THROUGH 10/15/22

Date Num Tap Number Gallons Comments

Tap 085 6/16/2022 42178 USDA FOREST SERVICE #085

Office 7/15/2022 42301 USDA FOREST SERVICE #085 123

9/15/2022 1000074 USDA FOREST SERVICE #085 957773 flushing fire hydrant?

10/14/2022 1000197 USDA FOREST SERVICE #085 123

Total METERED WATER (GALLONS USED)

Tap 125 Date Num Tap Number Gallons

Hydrant 1/17/2022 41603 USDA FOREST SERVICE #125

2/15/2022 41727 USDA FOREST SERVICE #125 124

3/15/2022 41851 USDA FOREST SERVICE #125 124

4/15/2022 41973 USDA FOREST SERVICE #125 122

5/16/2022 42095 USDA FOREST SERVICE #125 122

6/16/2022 42218 USDA FOREST SERVICE #125 123

7/15/2022 42340 USDA FOREST SERVICE #125 122

8/15/2022 42462 USDA FOREST SERVICE #125 122

9/15/2022 1000113 USDA FOREST SERVICE #125 957651 flushing fire hydrant?

10/14/2022 1000236 USDA FOREST SERVICE #125 123

Total METERED WATER (GALLONS USED)

Tap 126 Date Num Tap Number Gallons

Ranger House 8/15/2022 42463 USDA FOREST SERVICE #126 1600

Total METERED WATER (GALLONS USED) 1600

Tap 131 Date Num Tap Number Gallons

Engine Storage 1/17/2022 41608 USDA FOREST SERVICE #131

2/15/2022 41732 USDA FOREST SERVICE #131 124

3/15/2022 41856 USDA FOREST SERVICE #131 124

4/15/2022 41978 USDA FOREST SERVICE #131 122

5/16/2022 42100 USDA FOREST SERVICE #131 122

6/16/2022 42223 USDA FOREST SERVICE #131 123

7/15/2022 42345 USDA FOREST SERVICE #131 122

8/15/2022 42467 USDA FOREST SERVICE #131 122

9/15/2022 1000118 USDA FOREST SERVICE #131 957651

10/14/2022 1000241 USDA FOREST SERVICE #131 123

Total METERED WATER (GALLONS USED)

Tap 132 Date Num Tap Number Gallons

Barracks 1/17/2022 41609 USDA FOREST SERVICE #132

2/15/2022 41733 USDA FOREST SERVICE #132 124

3/15/2022 41857 USDA FOREST SERVICE #132 124

4/15/2022 41979 USDA FOREST SERVICE #132 122

5/16/2022 42101 USDA FOREST SERVICE #132 122

6/16/2022 42224 USDA FOREST SERVICE #132 123

7/15/2022 42346 USDA FOREST SERVICE #132 122

8/15/2022 42468 USDA FOREST SERVICE #132 122

9/15/2022 1000119 USDA FOREST SERVICE #132 957651 *Odd but these 2 months are the same

10/14/2022 1000242 USDA FOREST SERVICE #132 123 *Double checked. They are the same.

Total METERED WATER (GALLONS USED)

TOTAL USAGE OF 5 TAPS

APPENDIX D – WATER DISTRIBUTION FLOW

CALCULATION

Buffalo Creek Work Center - Water Distribution Flow

Project Description

Hazen- Williams Formula

Friction Method

DischargeSolve For

Input Data psi0Pressure 1 psi60Pressure 2 ft7,000.00Elevation 1 ft6,675.00Elevation 2 ft4,500.0Length

140.000Roughness Coefficient in4.0Diameter

Results gal/min270.8Discharge ft186.61Headloss ft7,000.74Energy Grade 1 ft6,814.14Energy Grade 2 ft7,000.00Hydraulic Grade 1 ft6,813.39Hydraulic Grade 2 ft²0.1Flow Area ft1.0Wetted Perimeter ft/s6.91Velocity ft0.74Velocity Head ft/ft0.041Friction Slope

Page 1 of 127 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666

12/12/2022

FlowMaster [10.03.00.03]

Bentley Systems, Inc. Haestad Methods Solution Center

1190e - Buffalo Creek Water Main - 4 inch Capacity.fm8