DS-16-161 Water Reuse Master Plan
-
Upload
cityofkilleen -
Category
Government & Nonprofit
-
view
13 -
download
3
Transcript of DS-16-161 Water Reuse Master Plan
![Page 1: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/1.jpg)
Reuse Master Plan City of Killeen
November 1, 2016
![Page 2: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/2.jpg)
Reuse Master Plan Process
STRATEGIC PLANNING
CUSTOMER EVALUATION
AND DEMAND PROJECTIONS
REUSE SYSTEM CIP
FINANCIAL EVALUATION
REUSE MASTER PLAN
PRESENTATION
2
![Page 3: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/3.jpg)
Strategic Planning
• Identify Implementation Challenges & Solutions
• Document Regulations for Reuse
• Recommended Revisions to City Standards
• Coordination with Bell County WCID #1
• Benchmarking with 11 Local & National Utilities
3
![Page 4: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/4.jpg)
Reuse Master Plan Process
STRATEGIC PLANNING
CUSTOMER EVALUATION
AND DEMAND PROJECTIONS
REUSE SYSTEM CIP
FINANCIAL EVALUATION
REUSE MASTER PLAN
PRESENTATION
4
![Page 5: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/5.jpg)
Customer Evaluation
• Review historical wastewater plant flows for available supply
5
9.93
3.15
8.81
43.80
50.60
36.45
0
5
10
15
20
25
30 0
5
10
15
20
25
30
35
40
45
50
55
60
9/2009 11/2009 2/2010 5/2010 8/2010 11/2010 2/2011 5/2011 8/2011 11/2011 2/2012 5/2012 7/2012 10/2012 1/2013 4/2013 7/2013 10/2013 1/2014 4/2014 7/2014 10/2014 12/2014
Prec
ipita
tion
(in)
Gro
ss E
fflu
ent (
MG
D)
Precipitation South WWTP Monthly Max South WWTP Monthly Average North WWTP Monthly Max North WWTP Monthly Average
![Page 6: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/6.jpg)
Customer Evaluation
• Identify potential reuse customers – Schools, Parks, Golf Courses, Commercial, Industrial
6
![Page 7: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/7.jpg)
Customer Evaluation
7
229.7
11.9 9.0 7.2 6.5 11.9
115.3
7.4 0.5 6.6 5.9 11.4 7.4
155.8
5.8 0.8 4.5 6.5 6.7 5.8 0.0
50.0
100.0
150.0
200.0
250.0
Stonetree Golf Course
Killeen High School
Haynes Elementary
School
Stone Creek Apartments
Independence Place
Apartments
Texas A&M South Campus
Killeen Community
Center
Mill
ion
Gallo
ns (M
G)
2011 2012 2013
Large Irrigation Users
![Page 8: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/8.jpg)
Customer Evaluation
• Demands are highly cyclical, resulting in a small window each year for generating revenue.
• Most utilities with successful reuse systems have a year-round base usage.
8
• Usage for Stonetree Golf Course (current reuse customer) is over 6 times larger than all potential customers combined.
![Page 9: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/9.jpg)
Customer Demand Projections
• Customer demands developed on a weekly basis (example below)
9
![Page 10: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/10.jpg)
Reuse Master Plan Process
STRATEGIC PLANNING
CUSTOMER EVALUATION
AND DEMAND PROJECTIONS
REUSE SYSTEM CIP
FINANCIAL EVALUATION
REUSE MASTER PLAN
PRESENTATION
10
![Page 11: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/11.jpg)
Existing Reuse System – Repurposed existing water line sliplined to 18” diameter line – Pump Station at North WWTP – Currently supplies irrigation for the Stonetree Golf Course to a pond (non-
pressurized) – Not included in the financial analysis
11
![Page 12: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/12.jpg)
Reuse Capital Improvement Plan Development Process • Delineate Service Areas based on ground elevations
• Determine reuse pumping, storage and water line requirements
• Evaluate sizing and phasing with reuse hydraulic model
• Eliminate potential projects with a high cost per million gallons ($/MG)
12
![Page 13: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/13.jpg)
Buildout Reuse CIP
![Page 14: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/14.jpg)
Reuse Capital Improvement Plan Costs
Phase # Reuse Water System Capital Improvement Plan Cost1 New Lower Service Area 3.0 MGD Pump Station and a 2.5 MG Ground Storage Tank 10,166,000$
2 8" and Slip Lined 18" Reuse Water Lines along 28th St. and Veterans Memorial Blvd. 3,154,540$
3 8" and 12" Reuse Water Line along 38th Street 684,830$
4 8" Reuse Water Line along Rancier Avenue 753,830$
5 8" & 16" Reuse Water Lines and Repurposing 0.25 MG Park St. EST 2,013,870$
6 8" Reuse Water Line along East Rancier Avenue 602,890$
7 8" Reuse Water Line along 60th Street 712,430$
8 6" Reuse Water Line along 48th Street 56,930$ 9 8" Reuse Water Line along Roy Reynolds Drive 587,410$
18,732,730$ 10 Lower Service Area 2.50 MGD Pump Station Expansion to 5.50 MGD at the North WWTP 747,500$
11New Douglas Mtn Service Area 3.50 MGD Pump Station, 1.5 MG Ground Storage Tank and 18" Reuse Water Transmission Line 9,792,550$
12 12", 16" and 24" Reuse Water Lines along Watercrest Road 4,271,970$
13 12" Reuse Water Line along Clear Creek Road 453,680$ 14 8" Reuse Water Line along Robinett Road 243,230$
15,508,930$
15Lower Service Area 2.5 MGD Pump Station Expansion to 8.0 MGD and 1.0 MG Ground Storage Tank 1,868,750$
16Douglas Mtn Service Area 1.5 MGD Pump Station Expansion to 5.0 MGD and 1.0 MG Ground Storage Tank 1,569,750$
17 16" Reuse Water Line and Repurposing Douglas Mountain 0.66 MG GST 7,748,210$
18 8" Reuse Water Line along Clear Creek Road 543,380$
19 8" Reuse Water Line along SH 195 376,050$
20 6" Reuse Water Line along Stan Schlueter Loop 256,170$
21 8" Reuse Water Line along Illinois Avenue 568,390$ 22 6" and 12" Reuse Water Lines along Cody Poe Road 1,411,920$
14,342,620$ 48,584,280$ Grand Total:
10 Y
ear
10 - 20 Year Total:
20 Year - Buildout Total:
20 Y
ear -
Bui
ldou
t10
- 20
Yea
r
10 Year Total:
![Page 15: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/15.jpg)
Reuse Master Plan Process
STRATEGIC PLANNING
CUSTOMER EVALUATION
AND DEMAND PROJECTIONS
REUSE SYSTEM CIP
FINANCIAL EVALUATION
REUSE MASTER PLAN
PRESENTATION
15
![Page 16: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/16.jpg)
Financial Evaluation
16
• Developed Reuse Rate Structure – Break even analysis – Impact to Water and Wastewater CIPs – Potable Water Rate Structure – Local Reuse Rates (Typically Between
$0.50 and $2.00/1,000 gal)
• Developed Revenue & Cost Comparison
• Developed Cost & Rate Model • Reviewed Two Financial Scenarios
– Complete Buildout of Reuse CIP – Construction of 10 year CIP
![Page 17: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/17.jpg)
Financial Evaluation: Scenario 1 (Full CIP)
17
• Funding of entire Reuse CIP over 50 years
• Reuse Rate = $2.46/1,000 gal – High rate compared to other utilities – Study showed rates are typically $0.50-$2.00.
• Positive Cash Flow first 5 years – $100,000 prior to bond issuance – Result of reduced cost of water to serve Stonetree Golf Course
• Deficit in Reuse Fund – Average $3.5 million per year for over 50 years – Approximately 3.1% of current Water/Sewer Fund
![Page 18: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/18.jpg)
Financial Evaluation: Scenario 2 (10-year CIP)
18
• Funding of 10 year Reuse CIP over 40 years
• Reuse Rate = $2.46/1,000 gallons
• Positive Cash Flow first 5 years – $100,000 prior to bond issuance – Result of reduced cost of water to serve Stonetree Golf Course
• Deficit in Reuse Fund next 35 years – Average $1.5 million per year – Approximately 1.8% of current Water/Sewer Fund
• Small positive Cash Flow after 40 years
![Page 19: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/19.jpg)
Reuse Master Plan Process
STRATEGIC PLANNING
CUSTOMER EVALUATION
AND DEMAND PROJECTIONS
REUSE SYSTEM CIP
FINANCIAL EVALUATION
REUSE MASTER PLAN
PRESENTATION
19
![Page 20: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/20.jpg)
Reuse Master Plan Conclusions & Recommendations
20
• A direct nonpotable reuse system would be dependent on transfers from the Water/Sewer Fund, $1.5 – 3.5 million/year.
• Providing reuse water to the Stonetree Golf Course results in a positive cash flow and should be continued.
• Analysis shows that full development of a reuse water system will not result in cost savings to the city until after 35 years.
• Reuse may become more financially attractive over time as alternative sources of supply become more expensive.
• At this time, it is recommended that the City not pursue additional reuse customers, but reuse should be reevaluated in the future for customers with large nonpotable water demands.
![Page 21: DS-16-161 Water Reuse Master Plan](https://reader031.fdocuments.us/reader031/viewer/2022030222/5883a3a01a28ab2b568b7f25/html5/thumbnails/21.jpg)
Questions
21