Fort Walton Beach Council agenda — 04-29-03 workshop agenda — reading text

N N tI 0 en 0 N '" C 0 ~ N M ... lC) '" ... <: 0 '" ~ N ~ N N G) a.  Q ;:: o a t: S~ 1"+.~ rLJ rLJ~ rLJQ.I~ Q.I ~Q= Q.I tt) Q ~ Q\ rLJ M rLJ Q.I .. fA Q.I Q.I ~ tt) Q rJJ E t'- ~ aQ.l rLJ C~ u =' fA~ rJJQ rLJ Q e; Q~ U Q.lrLJ~ Q.I Q.I rLJ Q.I I rLJ Q Q.I o~~ U ~ o a .s rJJ~ rLJ s w.J Z ~. t: S~= rLJQ.I= U u~ e Q Q~ z Z I"'" r- III I WASTEWATER TREATMENT PLANT FACILITIES PLAN I I" I I Prepared For: I.'.' CITY OF FORT WALTON BEACH 107 MIRACLE STRIP PARKWAY S. W. FORT WALTON BEACH, FLORIDA 32549 filii I"'" L. Prepared By: HARTMAN & ASSOCIATES, INC. r 12815 EMERALD COAST PARKWAY, SUITE 110 DESTIN, FLORIDA 32550 I'll pili APRIL 2003 HAI#01.0387. 000 I"'" t. I! IIII! II.- CITY OF FORT WALTON BEACH I! IIII! WASTEWATER TREATMENT PLANT FACILITIES PLAN II TABLE OF CONTENTS I Section Page No. Title No. I Table of Contents 1- I List of Tables List of Figures v- Vll- I EXECUTIVE SUMMARY ES. l Introduction ES- l I ES. 2 Evaluation of Wastewater Service Area ES- l ES. 3 Existing Facilities ES- 2 I ES.4 Historical and Projected Wastewater Characteristics ES- 2 ES. 5 Alternative Secondary Treatment Upgrade Options ES- 4 I ES. 5. 1 ES. 5. 2 Rehabilitating Existing RBC Process Retrofitting RBC' s to WesTech STM- AeratorTM ES- 5 ES- 6 ES. 5.3 Oxidation Ditch - Modified Ludzack- Ettinger Process ES- 7 I ES. 6 Proposed WWTP Capital Improvements ES- I0 ES. 7 Classification and Staffing ES- 15 I ES. 8 Local Reclaimed Water Use Alternatives ES- 16 1. 0 INTRODUCTION iii 1. 1 Purpose 1- 1 1"....,.: 1. 2 Background 1- 1 I 1.3 Scope of Services 1- 3 Ii 2. 0 EVALUATION OF SERVICE AREA AND EXISTING FACILITIES 2. 1 Introduction 2- 1 I...:. I 2. 2 Wastewater Service Area 2- 1 2.3 Wastewater Facilities 2- 3 I 2.3. 1 General Infonnation 2- 3 2.3. 2 Wastewater Treatment Plant 2- 5 F:/ O 1/0 1. 0387 .OOO/ report/toc HAI#01.0387. 000 1- 04/ 15/ 03 r I I CITY OF FORT WALTON BEACH WASTEWATER TREATMENT PLANT I FACILITIES PLAN TABLE OF CONTENTS ( Continued) I Section No. Title Page No. I 2. 3. 2. 1 Screening and Pretreatment 2- 9 2.3. 2. 2 Primary Clarifiers 2- 14 I 2. 3. 2.3 Rotating Biological Contactors ( RBCs) 2- 18 2. 3. 2.4 Final/ Secondary Clarification 2- 24 I 2.3.2.5 2.3. 2. 6 Disinfection Effluent Filters 2- 26 2- 29 2.3. 2. 7 Residuals Management Facilities 2- 29 I 2.3. 2. 8 Plant Recycle Pump Station 2- 35 2.3. 3 Effluent Disposal 2- 37 I 3. 0 HISTORICAL AND PROJECTED WASTEWATER CHARACTERISTICS I 3. 1 Historical Wastewater Characteristics 3- 1 3 .1.1 Wastewater Flows 3- 1 3. 1.2 Influent Quality 3- 9 Iii 3. 1.3 Effluent Quality 3- 9 3. 1.4 Residuals Quality 3- 10 II 3. 2 Wastewater Flow Projections 3- 10 I. 4.0 ALTERNATIVE SECONDARY TREATMENT UPGRADE OPTIONS 4. 1 Introduction 4- 1 4.2 Wastewater Treatment Plant Upgrades 4- 4 4.2. 1 Alternative 1 4- 5 4.2. 1.1. Capital Costs 4- 9 II 4.2. 1. 2 Scheduling and Sequencing 4- 9 I 4. 2. 2 Alternative 2 4- 11 i 4- 12 4. 2.2. 1 Capital Costs 4.2. 2. 2 Scheduling and Sequencing 4- 12 I 4.2.3 Alternative 3 4- 17 4. 2.3. 1 Capital Costs 4- 21 I F :/0 1/0 1. 03 8 7 .OOO/ report/toe HAI#01.0387.000 11- 04/ 15/ 03 I. I I CITY OF FORT WALTON BEACH WASTEWATER TREATMENT PLANT I FACILITIES PLAN TABLE OF CONTENTS ( Continued) I Section No. Title Page No. I 4.2.3. 2 Scheduling and Sequencing 4- 21 4.3 Present Value Analysis 4- 24 I