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Lincoln Wastewater System
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Lincoln Wastewater System Master Plans
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2015 Lincoln Wastewater Facilities Plan Update
2015 Lincoln Wastewater Facilities Plan Update
February 2015
Download Complete Report
(30.9 M Zip PDF)
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Cover and Table of Contents
(95 K)
Chapter 1 - Executive Summary
(1.17 M)
1.1 EXECUTIVE SUMMARY
1.2 OTHER RECOMMENDATIONS AND SUGGESTIONS
Chapter 2 - Introduction
(252 K)
2.1 SCOPE OF THIS MASTER PLAN UPDATE
2.2 REASONS FOR UPDATING THE MASTER PLAN
2.3 2040 COMPREHENSIVE PLAN
2.4 FACTORS THAT AFFECT FACILITIES PLANNING
2.4.1 Population Growth
2.4.2 Regulatory Changes
2.4.3 Condition and Age of Facilities
2.5 PLANNING GOALS AND OBJECTIVES
2.6 IDENTIFIED IMPROVEMENTS
2.7 RELATED STUDIES, REPORTS, AND DOCUMENTS
2.8 GENERAL TERMINOLOGY
2.8.1 Facilities
2.8.2 Wastewater Flow
2.8.3 Wastewater Constituents
2.9 WASTEWATER AND SOLID WASTE ORGANIZATION
2.10 ACKNOWLEDGMENTS
Chapter 3 - Planning Considerations
(1.02 M)
3.1 GENERAL
3.2 STUDY LIMITS
3.2.1 Geographical Boundaries
3.2.2 Wastewater Drainage Basins
3.2.3 Planning Areas
3.2.4 100 Year Floodplain Areas
3.3 PLANNING AGENCIES
3.4 EXISTING LAND USAGE
3.5 FUTURE LAND USE
3.6 POPULATION
3.6.1 Historical Population
3.6.2 Projected Population
3.6.3 Comparison of Land Inventory to Projected Population
Chapter 4 - Existing Collection System
(362 K)
4.1 BACKGROUND
4.1.1 Existing Collection System
4.1.2 Collection System Operation and Maintenance
4.2 WASTEWATER COLLECTION SYSTEM BASINS TRIBUTARY TO THE THERESA STREET WWTF
4.2.1 Salt Valley (Salt Creek)
4.2.2 Antelope Creek
4.2.3 West ‘O’ Street
4.2.4 Middle Creek
4.2.5 Haines Branch
4.2.6 Beal Slough
4.2.7 Oak Creek
4.2.8 Lynn Creek
4.2.9 Little Salt Creek
4.2.10 East Campus
4.3 WASTEWATER COLLECTION SYSTEM BASINS TRIBUTARY TO THE NORTHEAST WWTF
4.3.1 Deadmans Run
4.3.2 Havelock
4.3.3 Stevens Creek
4.4 WASTEWATER LIFT STATIONS
4.4.1 General Summary
Chapter 5 - Existing Wastewater Treatment Facilities
(6.86 M)
5.1 THERESA STREET WWTF
5.1.1 Overview
5.1.2 Liquid Treatment
5.1.3 Biosolids Treatment
5.1.4 Odor Control
5.1.5 Recently Completed Improvements
5.1.6 Historical Influent Flows
5.1.7 Historical Influent Quality
5.1.8 Treatment Facility Performance
5.1.9 Discharge Permit
5.1.10 Future Capacity
5.2 NORTHEAST WWTF
5.2.1 Overview
5.2.2 Liquid Treatment
5.2.3 Odor Control
5.2.4 Biosolids Treatment
5.2.5 Recently Completed Improvements
5.2.6 Historical Influent Flows
5.2.7 Historical Influent Quality
5.2.8 Treatment Facility Performance
5.2.9 Discharge Permit
5.2.10 Future Capacity
5.3 COMPARISON OF WATER USAGE TO WASTEWATER FLOW
5.4 HISTORICAL PER CAPITA WASTEWATER FLOW
5.5 INDUSTRIAL CONTRIBUTIONS
Chapter 6 - Current and Evolving Regulations
(94 K)
6.1 CURRENT REGULATORY REQUIREMENTS
6.1.1 Surface Water Quality Standards
6.1.2 Effluent Discharge Permitting System
6.1.3 Residuals Disposal Regulations
6.1.4 Air Permits
6.1.5 Stormwater Permits
6.2 EVOLVING NUTRIENT CRITERIA REGULATIONS
6.2.1 Nutrient Criteria
6.2.2 State of Missouri
6.2.3 State of Kansas
6.2.4 Iowa
6.2.5 State of Nebraska
Chapter 7 - Basis for Alternative Evaluations
(35 K)
7.1 GENERAL
7.2 ECONOMIC EVALUATION
7.2.1 Probable Opinion of Estimated Costs
7.2.2 Future Costs
7.2.3 Assigning Costs
7.2.4 Contingencies
7.2.5 Collection System Costs
7.2.6 Wastewater Treatment Facility Costs
Chapter 8 - Collection System Evaluation
(2.03 M)
8.1 PURPOSE
8.2 BACKGROUND OF THE EXISTING HYDRAULIC MODEL
8.3 UPDATED HYDRAULIC MODELING METHODOLOGY
8.4 WASTEWATER AND RAINFALL MONITORING
8.4.1 Rainfall Monitoring
8.4.2 Flow Monitoring
8.4.3 Wastewater Flow Components
8.5 ANALYSIS OF FLOW MONITORING DATA
8.5.1 Dry Weather Flow Analysis
8.5.2 Groundwater Infiltration (GWI)
8.5.3 Inflow and Infiltration Analysis
8.5.4 Estimation of Existing Base Sanitary Flow (BSF)
8.5.5 Diurnal Curve
8.5.6 Tier I, Tier II and Tier III Wastewater Flow Projections
8.5.1 Extreme (200-yr) Storm Event Analysis
8.6 MODEL UPDATE
8.6.1 Dry Weather Flow Calibration/Validation
8.6.2 Wet Weather Flow Model Simulation
8.6.3 Wet Weather Flow Validation
8.7 WET WEATHER FLOW – DESIGN STORM SIMULATION
8.7.1 Salt Valley Basin
8.7.2 West O Basin
8.7.3 Oak Creek Basin
8.7.4 Stevens Creek Basin
8.7.5 Havelock Basin
8.7.6 Beals Slough Basin
Chapter 9 - Planned and Potential Collection System Improvements
(966 K)
9.1 SUMMARY OF IMPROVEMENTS
9.2 COLLECTION SYSTEM PIPELINE IMPROVEMENTS
9.3 COLLECTION SYSTEM STORAGE IMPROVEMENTS
9.3.1 Recommended Improvements to Existing Lift Stations
Chapter 10 - Planned and Potential WWTF Improvements
(5.5 M)
10.1 INTRODUCTION
10.2 NUTRIENT REMOVAL
10.3 TREATMENT PLANT IMPROVEMENTS
10.3.1 Theresa Street WWTF Improvements
10.3.2 Northeast WWTF
Chapter 11 - Summary, Planning Costs and Phasing
(390 K)
11.1 GENERAL
11.2 SUMMARY OF ESTIMATED IMPROVEMENT COSTS AND PHASING
11.2.1 City of Lincoln CIP
11.2.2 Collection System
11.2.3 Wastewater Treatment Facilities
11.3 OTHER RECOMMENDATIONS AND SUGGESTIONS
Appendices
Appendix A – NPDES Permits
(5.04 M)
Appendix B – Air and Stormwater Permits
(2.35 M)
Appendix C – Extreme (200-yr) Storm Event Analysis TM
(5.47 M)
Appendix D – 2014 Update to the Stevens Creek Basin Study Area No. 3
(2.88 M)
Appendix E – Timing of Beals Slough Improvements TM
(419 K)
Appendix F – Basin Improvement Figures/Tables
(2.14 M)
Tables
Table 1.1 Existing CIP Summary
Table 1.2 Summary of Collection System Improvement Costs (1)
Table 1.3 Summary of Wastewater Treatment Facility Improvement Costs (1,2)
Table 3.1 Historical Population From 1880 to 2010 (1)
Table 3.2 Population Projections from 2010 to 2060 (1)
Table 3.3 Acreage Calculations Based on Population
Table 4.1 Historical Length of Sanitary Sewer Pipe Installed
Table 4.2 Increase in Existing Wastewater Drainage Basin Areas
Table 4.3 Increase in Existing Wastewater Drainage Basin Areas
Table 4.4 Increase in Existing Wastewater Drainage Basin Areas
Table 4.5 Summary of Wastewater Lift Stations (1)
Table 5.1 Rated Capacity of the Theresa Street WWTF
Table 5.2 Theresa Street WWTF Secondary Treatment Summary
Table 5.3 Theresa Street WWTF Annual Biosolids Land Application Volumes (1)
Table 5.4 Theresa Street WWTF Historical Influent Flows
Table 5.5 Theresa Street WWTF Average Influent Loading Concentrations (1,2)
Table 5.6 Theresa Street WWTF Average Influent Mass Loading (1,2)
Table 5.7 Theresa Street WWTF Average Effluent Concentrations (1)
Table 5.8 Theresa Street WWTF Average Influent Removal (1)
Table 5.9A Theresa Street WWTF Fecal Coliform Concentrations (1,2)
Table 5.9B Theresa Street WWTF Effluent E Coli Concentrations (1,2)
Table 5.10 Rated Capacity of the Northeast WWTF
Table 5.11 Northeast WWTF Secondary Treatment Summary
Table 5.12 Northeast WWTF Annual Average Flows (1)
Table 5.13 Northeast WWTF Average Influent Loading Concentrations (1,2)
Table 5.14 Northeast WWTF Average Influent Mass Loading (1,2)
Table 5.15 Northeast WWTF Average Effluent Concentrations (1,2)
Table 5.16 Northeast WWTF Average Influent Removal (1)
Table 5.17A Northeast WWTF Fecal Coliform Concentrations (1,2)
Table 5.17B Northeast WWTF Effluent E Coli Concentration (1,2)
Table 5.18 Comparison of Wastewater Treatment Facility Flows and Water Usage
Table 5.19 Industrial Flow and Loading Contributions for the Year 2013
Table 6.1 Salt Creek Segment LP2-20000 Stream Classification
Table 6.2 NPDES Permit Monitoring Requirements for Both WWTF’s
Table 6.3 Theresa Street WWTF Effluent NPDES Permit Limitations
Table 6.4 Northeast WWTF Effluent NPDES Permit Limitations
Table 6.5 State of Kansas Nutrient Reduction Levels
Table 7.1 Collection System Planning Costs
Table 7.2 Wastewater Treatment Facility Planning Costs
Table 8.1 Summary of Proposed Storage from the 2007 Master Plan Wastewater Facilities Master Plan Update - 2014
Table 8.2 Summary of Rain Gauges
Table 8.3 Summary of Storms
Table 8.4 Seasonal Groundwater Infiltration Projection (MGD)
Table 8.5 Wet Weather Flow Monitoring Summary by Flow Meter
Table 8.6 Unit and Area Wastewater Flows
Table 9.1 Summary of Collection System Pipeline Improvements (1)
Table 9.2 Summary of Proposed Storage Improvements
Table 10.1 Teresa Street WWTF CIP Costs
Table 10.2 Northeast WWTF CIP Costs
Table 11.1 Existing CIP Summary
Table 11.2 Summary of Collection System Improvement Costs (1)
Table 11.3 Summary of Wastewater Treatment Facility Improvement Costs (1,2)
Figures
Figure 1.1 Planning Growth Tiers
Figure 1.2 Planning Area Tier I Improvements
Figure 1.3 Planning Area Tier II Improvements
Figure 1.4 Planning Area Tier III Improvements
Figure 1.5 Annual Cost of City CIP Projects
Figure 1.6 Annual Cost of Collection System Improvement Projects
Figure 1.7 Annual Cost of Theresa Street and Northeast WWTF Improvement Projects
Figure 1.8 Annual Cost of City Wide Improvement Projects
Figure 2.1 Organizational Chart
Figure 3.1 Project Study Area
Figure 3.2 Drainage Basins
Figure 3.3 Utility Planning Zones
Figure 3.4 Planning Growth Tiers
Figure 3.5 100 Year Floodplain
Figure 3.6 Historical and Projected Population Trends for City of Lincoln, NE
Figure 3.7 Comparison of Historic and Projected Population Based on Population Growth and Available Land for Development
Figure 4.1 Existing Wastewater Trunk Sewer System
Figure 4.2 Historical Collection System Stoppages
Figure 5.1 Theresa Street WWTF Liquid Process Schematic
Figure 5.2A Theresa Street WWTF Hydraulic Profile - Central Train
Figure 5.2B Theresa Street WWTF Hydraulic Profile - East and West Train
Figure 5.3 Theresa Street WWTF Solids Process Schematic
Figure 5.4 Theresa Street WWTF Aerial Photo (2013)
Figure 5.5 Treatment Facilities SCADA System Diagram
Figure 5.6 Theresa Street WWTF Influent Flows Comparison
Figure 5.7 Theresa Street WWTF Influent Loading Concentrations
Figure 5.8 Theresa Street WWTF Influent Mass Loading
Figure 5.9 Theresa Street WWTF Effluent Concentrations
Figure 5.10 Northeast WWTF Liquid Process Schematic
Figure 5.11 Northeast WWTF Hydraulic Profile
Figure 5.12 Northeast WWTF Biosolids Injection Sites
Figure 5.13 Northeast WWTF Solids Process Schematic
Figure 5.14 Northeast WWTF Aerial Photo (2013)
Figure 5.15 Northeast WWTF Influent Flow Comparison
Figure 5.16 Northeast WWTF Influent Loading Concentrations
Figure 5.17 Northeast WWTF Influent Mass Loading
Figure 5.18 Northeast WWTF Effluent Concentrations
Figure 5.19 Historical Per Capita Wastewater Flows
Figure 8.1 Collection System Layout
Figure 8.2 Rain Gauge and Flow Meter Location
Figure 8.3 Wastewater Flow Components
Figure 8.4 Existing Land Use
Figure 8.5 Diurnal Curves for Flow Monitoring Location B1-166
Figure 8.6 Diurnal Curves for Flow Monitoring Location B1-290
Figure 8.7 Existing Dry Weather Flows
Figure 8.8 Tier I Dry Weather Flows
Figure 8.9 Tier II Dry Weather Flows
Figure 8.10 Tier III Dry Weather Flows
Figure 8.11 Comparison Simulated Dry Weather Flow and Observed Flow at B1-166
Figure 8.12 Comparison Simulated Dry Weather Flow and Observed Flow at B1-290
Figure 8.13 Flow Meter Basins R-Factors
Figure 8.14 Comparison of flows generated using the 100-year 24-hour design storm and the City’s design flow equation
Figure 8.15 Deadmans Run, East Campus, and Havelock Basins Layout
Figure 8.16 Comparison of Hydrographs at Upstream of Manhole D9-68
Figure 9.1 Planning Area Tier I Improvements
Figure 9.2 Planning Area Tier II Improvements
Figure 9.3 Planning Area Tier III Improvements
Figure 9.4 Planning Area Storage Improvements
Figure 10.1 Existing WWTF Service Areas
Figure 10.2 Theresa Street WWTF Projected MMAD Flows
Figure 10.3 Theresa Street WWTF Aerial Photo with Future Tier I and II Improvements
Figure 10.4 Northeast WWTF Projected MMAD Flows
Figure 10.5 Northeast WWTF Future Improvements
Figure 11.1 Annual Cost of City CIP Projects
Figure 11.2 Annual Cost of Collection System Improvement Projects
Figure 11.3 Annual Cost of Theresa Street & Northeast WWTF Improvement Projects
Figure 11.4 Annual Cost of City Wide Improvement Projects
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