Stormwater_Management_Consulting_Services.pdf

RFP #25086

Greenville County Issue Date: March 21, 2025

Procurement Services Division Opening Date: April 15, 2025

STORMWATER MANAGEMENT

CONSULTING SERVICES

RESPONSES MUST BE SUBMITTED ELECTRONICALLY TO:

https:// procurement.opengov.com/portal/greenvillecounty/greenvillecounty

Robert Brewer, NIGP-CPP, CPPO, CPPB

Procurement Services Division Director https://secure.procurenow.com/portal/%7bproject.government.code%7d

Greenville County

Stormwater Management Consulting Services

I. Public Notice II. Introduction

III. Scope of Work IV. Instructions to Offerors V. General Information

VI. Insurance VII. Evaluation Phases

VIII. Terms and Conditions IX. Sample Contract X. Vendor Questionnaire

Attachments:

A - COG Sub W9

B - Sample Services Agreement

Title: Stormwater Management Consulting Services

1. Public Notice

Greenville County is soliciting sealed proposals in response to Stormwater Management Consulting

Services, subject to the conditions and all provisions set forth herein and attached. Sealed proposals will be received through the County’s online procurement portal located at https://procurement.opengov.com/portal/greenvillecounty until Tuesday, April 15, 2025, 3:00 pm, then publicly opened. The service must be furnished as described and specified herein and submitted to

Greenville County.

All inquiries regarding this proposal shall be submitted via the County’s online procurement Portal, located at https://procurement.opengov.com/portal/greenvillecounty. Please note the deadline for submitting inquiries. All answers to inquiries will be posted on the County’s online procurement Portal.

Offerors may also click “Follow” on this proposal to receive an email notification when answers are posted. It is the responsibility of the Offeror to check the website for answers to inquiries no later than

Wednesday, April 2, 2025, 5:00 pm EDT.

https://secure.procurenow.com/portal/greenvillecounty

2. Introduction

2.1. Summary

The County desires to engage the services of an experienced engineering firm to provide professional engineering services associated with the continued implementation of the NPDES Phase I storm water permit requirements, assist with TMDL negotiations/recommendations for implementation of said

TMDL’s, floodplain analysis and other storm water related services. A detailed Scope of Work is provided in this document. The permit and supporting documentation are voluminous and, therefore, not being included in this Request for Proposals.

2.2. Background

Greenville County is in the 4th year of the third cycle of its National Pollution Discharge Elimination

(NPDES) Phase I stormwater municipal separate storm sewer system (MS4) permit. The first permit was issued in the year 2000; therefore, this is a mature program with established protocols and practices .

The latest permit effective July 1, 2021 added new requirements for TMDL and impaired water bodies with the need for more capital improvement projects. Additionally, the current permit expire on July 6, 2026. The consultant will be expected to assist with permit renewal negotiations.

2.3. Contact Information

Bob Brewer

Procurement Director

301 University Ridge

Suite N-2400

Greenville, SC 29601

Email: rbrewer@greenvillecounty.org

Phone: (864) 467-7200

Department:

LAND DEVELOPMENT/STORM WATER MGMT

2.4. Timeline

Release Project Date March 21, 2025

Question Submission Deadline April 2, 2025, 5:00pm

Proposal Submission Deadline April 15, 2025, 3:00pm

Review of Proposals April 15 -30, 2025 mailto:rbrewer@greenvillecounty.org tel:(864)467-7200

Tentative Date of Award May 30, 2025

Contract Negotiations May 1 - 16, 2025

Issue Notice to Proceed July 1, 2025

3. Scope of Work

3.1. Stormwater Management Services Scope of Work

Greenville County SC is in the 4th year of the third cycle of its National Pollution Discharge Elimination

System (NPDES) Phase I storm water municipal separate storm sewer system (MS4) permit. The first permit cycle focused on collection of data relevant to land use, storm water infrastructure, and water quality throughout the County, as well as establishing programs for elements of the permit such as sediment and erosion control, illicit discharge detention, industrial activity compliance, and public education. The permit effective July 1, 2007, focused on the continued implementation of procedures and the introduction of capital projects to improve the quality of the following waters in Greenville

County. The permit effective July 1st, 2021 added requirement to address TMDL & impaired water bodies.

Currently the permit terms are as outlined below, and the vendor is performing the duties and responsibilities outlined in this request for proposal. The annual work plan will outline the scope of services to be performed during this timeframe, the estimated man hours, cost and timeline for completion of each task.

3.2. Implementation of the following items will be required by the permit.

Vendor must have experience and knowledge regarding these program elements.

A. Structural Controls and Storm Water Collection System Operation: The operation of the storm sewer collection system, storm water conveyance system, outfalls, structural controls, Best

Management Practices (BMPs) for quantity and quality control, etc. shall be maintained in a manner to reduce the discharge of pollutants to the Maximum Extent Practicable (MEP).

B. Areas of New Development and Significant Redevelopment: A comprehensive master planning process must be in place to achieve the "MEP" standards to reduce the discharge of pollutants, after construction is completed, from MS4s which receive discharges from areas of new development and significant redevelopment.

C. Existing Roadway: All roadways shall be maintained and operated in a manner to reduce the discharge of pollutants to the "MEP". This includes paved and unpaved roadways.

D. Flood Control Project: Storm water problems related to flooding in selected watersheds will be analyzed and recommendation of potential solutions to the problems identified. The water quality of state waters must be assessed and evaluated for all flood improvement projects and shall include a water quality planning process.

E. Municipal Waste Treatment, Storage, or Disposal Facilities: Municipal Water Treatment, Storage, or Disposal Facilities not covered by a NPDES Storm Water Permit must monitor sources of pollutants and reduce pollutants in storm water discharges to the "MEP".

F. Pesticide, Herbicide, and Fertilizers Application: Identified impairments potentially caused by

PHF application activities shall be abated at the sources to the "MEP".

G. Illicit Discharges and Improper Disposal: A program to detect and eliminate illicit and improper disposal of non-storm water discharges must be in place. This program will include inventory, attribution and dry weather screening of outfalls. Tracking and identification of potential illicit connections to the MS4 is also included.

H. Industrial and High-Risk Runoff: Continue to identify, monitor, and control discharge of pollutants to the "MEP" from landfills, hazardous water treatment, storage, disposal and recovery facilities, and other industrial facilities.

I. Construction Site Runoff: Monitor the existing program to control erosion and sedimentation and other pollutant discharges from construction sites and other sources of post construction runoff to the "MEP" and provide recommendations for improvements.

J. Monitoring Data Collection: Recommend continuous improvement to the comprehensive monitoring program for storm water runoff as required by the permit.

K. Public Involvement and Public Education: Provide recommendations for a program to involve and educate the public concerning pollutants associated with storm water runoff.

L. Incorporation of Phase II Requirements: Provide recommendations for continuous improvements of permit elements within the municipal boundaries and the oversight to ensure permit compliance.

M. Total Maximum Daily Loads (TMDLs) and Impaired Waters: Assist with Implementation of the program to ensure compliance with TMDL effluent limited and address discharges to impaired water bodies.

N. SWMP Review: Conduct an annual review of the current Stormwater Management Program document in conjunction with preparation of the Annual Report.

3.3. The following general tasks are based on the main program elements listed above

1. Structural Controls and Storm Water Collection System Operation

a. The County BMP inspectors' inventory new BMP’s and outfall from new construction projects. Describe how you would support the County’s BMP staff with dry weather screening services if flows are observed by staff. Explain the protocol that would be followed and what sources of pollutants would be tested for. The consultant would be responsible for the proper disposal of hazardous waste produced by the sampling effort.

b. Currently we are using City Works AMS software application that is used to inventory field BMP’s, store data and pictures, track inspection results and provide a month status report. The Vendor should be able to assist with changes to the software program to meet overall documentation needs.

c. Provide technical support to county staff in outfall inventory, detention pond and post development BMP updates and new technologies/documentation recommendations such as data collection hardware and software, camera, GPS receivers.

2. Structural Controls and Storm Water Collection System Operation

a. Continue the development of watershed master plans to identify water quality problems, areas of concern and POCs for the WMU's as progress is made by watershed.

Identify potential retrofit projects in the priority WMU’s.

b. Provide analysis of baseline and storm event-based parameters of flow and pollutant concentration for potential retrofit projects to show potential improvements to water quality.

c. Provide technical assistance for any needed changes to our design manual's post construction water quality standard requirements, methods, techniques, specifications or standard details.

d. Provide engineering design services related to project design, permitting, bidding/award assistance and construction observation services for retrofit and stream stabilization projects. Services will include the following:

i. Water Quality Analysis

I. Gather data including regulated floodplain, tax map information, affected property owners and digital information from appropriate sources and compile topographic/planimetric maps that will provide the data needed for the hydrologic modeling.

II. The water quality analyses shall consider the existing (pre-development) pollutant conditions and build-out (post-development) water quality benefits which are anticipated after the proposed project is completed.

III. The Water Quality analysis shall be conducted in accordance with the storm water treatment standards as prescribed in the current Greenville County Storm

Water Management Design Manual, and any other criteria prescribed by the

Owner to achieve NPDES permit and Storm Water Management Plan objectives for the particular project.

IV. The watershed for which the constructed improvements are proposed shall be modeled using a water quality modeling software to determine the design percent pollutant removal. Please identify what water quality software would be used.

V. Delineate sub-watersheds at point and areas that are critical to evaluation and mitigation of known or expected water quality problems.

VI. Review and update the County's existing land use data to reflect the most up-to-date land use conditions.

VII. If requested, develop a future land use map using the existing land use data and projected development as directed by the County.

VIII. Develop routing parameters for all streams, detention structures and properties of interest.

IX. Compute runoff hydrographs at the downstream end of each sub- watershed.

X. Combine and route runoff hydrographs so that a comprehensive assessment of the watershed response to each rainfall event is obtained. Determine runoff hydrographs for the 2, 10, 25, 50 and 100 year events for existing basin conditions. If requested, determine runoff hydrographs for these same storm events using fully developed conditions.

XI. Where potential drainage issues are apparent and/or whenever it is determined that planned changes to the hydrology or hydraulics may increase potential for offsite impact due to an increase in runoff rates at any storm interval, the

Engineer shall evaluate and document the capacity of the drainage system, in sufficient detail to ensure no additional adverse impact will occur or result from the installation of proposed improvements. This may require an analysis of all downstream conveyances for channel stability and safe passage of runoff through downstream properties at the 100-year design storm event.

XII. Whenever existing storm water detention ponds, structures, storm water control devices are to be modified or altered in any way, the Engineer shall render careful consideration to any apparent off-site impacts.

ii. Alternatives Analyzed and Plan Report

I. Develop and evaluate viable solutions that will improve water quality and drainage problems in a cost-effective manner.

II. Develop planning level cost estimates for each of the alternative.

III. Operation and Maintenance considerations for project shall be addressed for each project alternative evaluated.

IV. Meet with County staff in order to review findings.

V. Address concerns and issues identified by the County in the alternative’s analysis review.

VI. Prepare a project report that details the results of the study and adequately documents the history and background for the project and provide a detailed project description delineating the extent of the study area, including a preliminary site plan showing the extent of the proposed improvements to be constructed.

VII. The Engineer shall recognize and any pre-existing conditions and document any previously established criteria that must be respected throughout the project period.

VIII. Describe hydrologic and hydraulic analyses and include pertinent data.

IX. Provide maps showing the routing parameters and proposed project improvements.

X. Identify any required land or right-of-way acquisition agreements needed and identify the person or entity to assume the permanent perpetual maintenance responsibilities for water quality features identified in the report.

XI. Develop a detailed Preliminary Project Cost Estimate based upon the description of the selected project presented in the Plan Report.

XII. County Staff will review all reports and provide comments on same or approve

"as is" before additional work is continued. The County's review comments or approval of the report shall be in writing.

XIII. Meetings with the potentially affected property owners shall be held to present and discuss the report and the property owner's receptiveness to the project.

The County shall make arrangements for the meetings and manage notifications for the meetings. The vendor shall provide presentation materials and be present to provide technical support of the proposed project.

iii. Preliminary Design

I. Collect field information and perform field reconnaissance to identify structures, conditions and parameters affecting hydrologic performance of the primary drainage system for the project.

II. Collect physical measurements of channels and structures affecting hydraulic performance of the properties to be studied.

III. Obtain field surveyed data to adequately represent invert elevations, street crossings, stream cross-sections, and other critical features that are part of the study area.

IV. Collect field survey data on the topographic land features, existing utilities, structures and boundary information pertinent to the design, extending at least five feet beyond the proposed limits of construction.

V. Perform surveys of structures identified as having the potential for flooding as determined through water quality analysis.

VI. These surveys will be performed using established benchmarks.

VII. Any existing conditions affecting the design shall be verified in the field.

VIII. Preliminary plans shall be developed from the water quality analysis report incorporating survey data, study data and input from the meetings with property owners. The preliminary plans shall be plotted at a scale not to exceed a sheet size of 24x36. Plans shall include a title sheet with site location map, an estimated quantities sheet, notes, plan view, water quality features plan, profile, cross-section and details. Additional sheets may be required to clarify the design.

IX. A detailed preliminary cost estimate shall be developed from the preliminary plans. The estimate shall include costs for all materials, labor and installation, including line items for demolition, moving items, mobilization, staking, traffic control, etc. A separate cost estimate shall be developed for surveys, right-of-way acquisition, sloping easements, drainage easements, etc.

X. The surveyor shall prepare preliminary exhibits showing the property and area

(ft2) to be acquired for purchase and/or easements. The exhibits will be used for cost estimates and negotiations with property owners.

XI. A site walkthrough attended by the staff engineer and vendor will be scheduled during the preliminary review phase to address project design questions.

XII. County staff will review all preliminary plans, easement plats and provide comments on same or approve "as is" before additional work is continued. The

County's review comments or approval of the preliminary plans and exhibits shall be in writing.

XIII. Meetings will be held to present the preliminary plan, including proposed construction limits, right-of-way’s, temporary and permanent easements, etc.

The vendor shall be prepared to discuss the project scope and construction sequence, maintenance requirements and stormwater utility fee credits available.

iv. Final Design

I. Final construction plans shall be developed based on comments from the public meetings, County staff review, modifications required to resolve right- of-way and/or easements issues, modifications required to overcome utility conflicts, etc. In addition to the sheets described previously for preliminary plans, the final plans shall contain water quality feature details, a traffic control plan (if applicable), sediment and erosion control plan, temporary and/or permanent stabilization plan, easements, construction limits, etc., as necessary. It is understood, in some instances, the final plans may require additional modification(s) pending the outcome of right of way and/or easement negotiations.

II. Construction documents shall include general provisions, special provisions, project construction specifications, references to South Carolina Department of

Environmental Services (SCDES) and Greenville County standard specifications and details, etc. for incorporation into the proposal package. An itemized sheet with final estimated construction quantities, per unit, shall be included.

Documents provided in electronic format shall be submitted.

III. Provide any needed hydrologic/hydraulic modeling to obtain needed CLOMAR approval.

IV. Permit applications shall be prepared to comply with all provisions of the

County's NPDES Permit and any local, state and federal requirements.

V. A Project Construction Schedule shall be prepared to outline the approximate timeline and sequence of events for the project.

VI. The vendor shall prepare a final construction cost estimate based on the final construction plans. The itemized construction cost sheet may be used for the final estimate by providing and tabulating unit prices for the line items and should be structured similar to the proposed bid schedule.

VII. County staff will review all final work documents and construction cost estimates and must give approval before work is considered complete. Final approval to the project design will be in writing.

VIII. A final meeting may be held at the completion of design. The purpose of the meeting is to present the finished design, discuss project details, the tentative schedule for construction and obtain final easement documents from the property owners.

v. Bidding/Award Assistance and Construction Observation

I. During the bidding process, the vendor shall provide assistance to county staff by attending the Pre-bid conference, responding to bidder technical questions regarding the design and issue any necessary addenda. The vendor shall attend the Pre-Construction Conference and respond to questions by the contractor pertinent to the design and proposed construction methods. The vendor may be asked to attend any Utility Meetings if utility relocation is necessary as a part of the proposed design.

II. Assist county staff in reviewing the bid documents for errors and admissions and advise on the lowest responsible bidder for award of construction.

III. Upon receipt of actual bids and the subsequent award of a Construction

Contract, the estimate may be further refined with possible reductions to project contingencies based upon more accurate reflection of the current marketplace.

IV. The vendor may be asked to provide properly trained and equipped inspectors who will perform daily inspections of the construction activities of low impact development (LID) post construction water quality features to ensure that the activities adhere to the approved plans/specifications and to verify quantities, monitor installation for proper techniques, monitor sediment and erosion control measures for proper compliance with permitting throughout the project, ensure quality control and provide written daily reports.

V. Vendor shall assist county staff by preparing all necessary permits and advising on necessary approvals that must be in place prior to the county authorizing construction activities.

VI. Vendor is responsible for checking all contractor drawings and request for product modifications necessary for the project.

VII. Coordinate with county staff on the final inspection of the completed project to ensure that all work has been performed in accordance with contractual requirements.

VIII. The vendor will be responsible for final submittal of all Project Close-out materials to include a copy of the certified "as-built" project drawings documenting the final project dimensions as verified in the field after the project construction has been completed.

IX. Provide professional engineering services throughout the project period, extending through the Warranty Phase, typically established to be one year beyond construction completion and final acceptance by the owner.

X. There should be a general progress report on both the design and construction phase of the project made on a monthly basis during the regularly scheduled meeting.

B. Provide follow up monitoring to determine effectiveness of retrofit projects' water quality BMPs and analysis of the collected data for validation and verification of post-construction water quality model predictions.

C. Currently Greenville County has a custom-made water quality software program (IDEAL) which is post construction BMP modeling software that demonstrates pollutant removal rates. The

Engineering Community is required to use this program to report on the estimated performance of various BMP's proposed during the design and plan review process. Please describe what you would recommend Greenville County use to demonstrate that post construction water quality standards are being met by the design community. If it is suggested to replace our current software program please describe what it would be replaced with, the expected cost and time to implement the new software and how the engineering community would be educated on its use.

D. Flood Control Project

1. Perform watershed flood studies as outlined in Greenville County's Watershed Flooding

Prioritization and Action Plan (WFPAP) designed to evaluate known and potential future flooding problems in each of its forty-two watersheds. Identify storm water problems related to flooding and analyze and recommend potential solutions to the problems identified. The following information summarizes the major required components of the

Storm Water Master Plans and Flood Insurance Studies. Data collection and analysis requirements may vary depending upon the nature of development in and location of the watershed being studied.

a. Data Collection

i. Obtain digital information from appropriate sources and compile topographic/planimetric maps that will provide the data needed for the hydrologic and hydraulic modeling of the watershed.

ii. Obtain available historical precipitation data, high water marks and historical flood data for use in model verification.

b. Field Investigation

i. Collect field information and perform field reconnaissance to identify structures, conditions and parameters affecting hydrologic performance of the primary drainage system for the watershed.

ii. Collect physical measurements of channels and structures affecting hydraulic performance of the stream reaches to be studied.

iii. Obtain field surveyed data to adequately model street crossings, stream cross-sections, and other critical features that are part of the studied stream reaches.

c. Survey

i. Identify and survey the invert elevations and roadway overtopping elevations for road crossings within the watershed.

ii. Perform surveys of structures identified as within or adjacent to the floodplain.

iii. Utilize surveys performed using established benchmarks to prioritize structures for possible flood mitigation.

d. Hydrologic Modeling and Analysis

i. Prepare a hydrologic model of the watershed using the HEC-RAS model developed by the US Army Corps of Engineers, Hydrologic Engineering Center.

ii. Update the hydrology associated with new and existing FEMA Flood Insurance

Studies to reflect current conditions and predict future conditions.

iii. Utilize new existing conditions hydrology to identify probable existing Level of

Service for each bridge and culvert on the mainstem and tributaries.

iv. Delineate sub-watersheds at points and areas that are critical to evaluation and mitigation of known flooding problems.

v. Review and update the County's existing land use data to reflect the most up- to-date land use conditions.

vi. If requested, develop a future land use map using the existing land use data and projected development as directed by the County.

vii. Calculate hydrologic parameters (SCS unit hydrograph method) for each of the sub-watersheds using land-use and soils data provided by the County.

viii. Develop routing parameters (Modified Puls Method) for all stream reaches that are within the corresponding HEC-RAS model.

ix. Develop routing parameters (Muskingum-Cunge method) for all stream reaches that are not included within the corresponding HEC-RAS model.

x. Develop routing parameters for major detention structures.

xi. Compute runoff hydrographs at the downstream end of each sub-watershed.

xii. Combine and route runoff hydrographs so that a comprehensive assessment of the watershed response to each rainfall event is obtained.

xiii. Verify model results using available historical data. Calculate and compare USGS regression flows to the model results. Compare model results to the FEMA FIS where applicable.

xiv. Determine runoff hydrographs for the 2, 10, 25, 50, 100 and 500 year events for existing basin conditions. If requested, determine runoff hydrographs for these same storm events using fully developed conditions.

e. Hydraulic Analysis

i. Prepare a hydraulic model of the watershed using the HEC-RAS model developed by the US Army Corps of Engineers, Hydrologic Engineering Center. Convert mainstream HEC-2 model to HEC-RAS

ii. Develop cross sections using County topographic data along with field measured channel dimensions.

iii. Incorporate bridge, culvert, and pond data collected during the field work into the model and update the hydraulic model for critical infrastructure (those bridges or culvers with known flooding issues and those modeled at or below the desired Level of Service). Verify current and future Level of Service.

iv. Verify model results using available historical data. Compare model results to the

FEMA FIS where applicable.

v. Analyze the water surface profiles associated with the 2, 10, 25, 50, 100 and 500 year, 24-hr storm events for existing basin conditions. If requested, determine water surface profiles for these same storm events using fully developed conditions.

vi. If requested, complete a floodway analysis for all streams included in the HEC- RAS model.

f. Problem Identification and Alternatives Analysis

i. Identify problem areas and tabulate by reach the total number and approximate depth of inundation of residential structures, bridges, culverts and streets.

ii. Define the following using narrative and tabular descriptions:

I. Drainage problems and buildings inundated by the 100-yr flood.

II. Buildings affected by inadequate drainage facilities.

III. Level of service for roadways during floods.

IV. Erosion and maintenance areas of major concern.

V. Historical flood damage areas.

VI. Develop and evaluate viable solutions that will improve drainage and flood hazard problems in a cost-effective manner.

VII. Develop planning level cost estimates for each of the improvement projects.

VIII. Meet with County staff as requested in order to review findings.

g. Watershed Plan Report

i. Prepare a watershed plan report that details the results of the study and contains the following components in addition to other required information as determined by the County.

ii. Address concerns and issues identified by the County in the alternative’s analysis review. Develop options to attain or approach desired Level of Service.

iii. Consider both current and future flow conditions.

iv. Reduce impact on existing homes and businesses.

v. Achieve or approach Level of Service for County owned bridges and culverts.

vi. Describe hydrologic and hydraulic analyses and include pertinent data.

vii. Provide floodplain maps showing the 100 and 500 year boundaries along with floodways (if requested).

viii. Provide flood profiles for the 2, 10, 25, 50, 100 and 500 year events.

ix. Describe proposed flood mitigation improvements as well as other pertinent data and findings that will aid the County in reducing flooding problems in the watershed.

x. Describe water quality benefits of the plan.

xi. Describe recommendations and prioritization of improvements with general planning level cost estimates for each proposed improvement project.

xii. Provide requested copies of the final plan to the County including backup data and digital copies of all models used.

h. Reports and Meetings

i. The vendor will be required to prepare interim reports and meet with County officials or the public as requested. This task will include the following as needed:

I. Meet with the County to discuss progress on the study.

II. Communicate regularly with County staff to keep them informed of problems and progress.

III. Provide meeting notes as documentation to all formal meetings and decisions.

IV. Attend public meetings as required to discuss study progress and address concerns.

V. Deliver the necessary maps, drawings, technical reports and analyses in sufficient quantity as required to accomplish the particular objectives of any project.

i. Regulatory Revisions and Updates

i. Review certain regulatory codes, ordinances and the like. Provide current updates to all regulations, codes and ordinances which may be affected by Federal or State regulations, standards, model codes, etc.

I. Ensure storm water master plans and flood studies assess water quality impacts on receiving water for all flood management projects identified in the watershed planning process.

II. Assist in coordinating flood control and channel improvement projects with water quality improvement activities. Encourage the use of bioengineering techniques for channel stabilization project. Employ the use of vegetation as much as possible as an alternative to harder less environmentally beneficial solutions from all open channels and perennial streams that are in need of stabilization or modifications.

III. Using Water Quality software (either IDEAL or other approved software) to calculate the pollutant removal rates for TSS, TP, and TN from removing homes through the Floodplain buyout program from the floodplain.

j. Provide/Update Stormwater Master Plans

E. Illicit Discharges and Improper Disposal

1. Follow the priority areas established for further sub-watershed illicit discharge investigations to target illicit discharges, identify activities that contribute to the discharges and recommend activities to correct water quality impairments. Describe how the investigation would be performed.

2. Assist County staff as needed with technical assistance in our program of tracking and identification of suspected illicit discharges that are reported by citizens through field dry weather screening and ambient monitoring data. The identification and tracking may require the use of video cameras and or tracking dyes and other techniques or technologies.

Describe how the vendor would propose assisting staff in these efforts.

3. Response to County staff's request to investigate, track and identify to its source suspected illicit discharge must be in a timely manner. Report findings upon determination of the source to County staff within seven days with recommendation for resolve or closure. The source and characteristic of all detected illicit discharges are to be included in the report to

County staff for enforcement activities or assistance in presenting the findings in a court of law.

4. Describe how the vendor would identify illicit discharges through an ambient flow monitoring program. Describe how the vendor would track and document· the discharges if a station shows the potential of illicit discharges to the streams.

5. Currently we use CityWorks AMS software application that is used to track potential illicit discharge complaints, store data and pictures, track inspection results and provide a month status report. Describe the recommendation of how our staff should collect and report on our inspections and enforcement activities using this software. The Vendor should be capable of making changes to the software to meet the needs of the inspectors.

6. Describe how the attributional data related to illicit discharges discovered during the tracking process would be documented in Geographic Information System (GIS) and tracked in a collection database. If a database must be developed describe what software would be used and the expected cost and time to integrate the current data and implement the new system.

7. Coordinate with REWA, Co-permittees and Metro when sanitary sewer overflows (SSO) are found during the tracking operation.

8. Quantify discharge rates by estimating the potential loading that has been avoided as a result of the program to be included in the annual report to SCDES.

F. Industrial and High-Risk Runoff

1. Provide technical support to county staff in regards to requests for information or direction in regards to EPA and SCDES Industrial General Permit regulations.

2. Currently we use City Works AMS software application that is used to track industrial inspections, store data and pictures, track inspection results and provide a month status report. Describe the recommendation of how our staff should collect and report on our inspections and enforcement activities using this software. The Vendor should be capable of making changes to the software to meet the needs of the inspectors.

3. The vendor may be asked to provide recommendations on how to meet our permit requirements regarding industrial operator education. Currently we have a web based online Industrial Operation Training Program and videos to educate and inform local industries of appropriate storm water controls and pollution prevention activities.

G. Construction Site Runoff

1. Conduct Erosion Control Audits once during contract period to re-evaluate the quality of

Erosion Prevention and Sediment Control (EPSC) planning, design, and site implementation in Greenville County and to identify where additional enhancements or modifications to these processes and/or legal authority are needed to improve performance. Monitor site development reviews and plan reviews for adherence to design criteria and requirements.

Make recommendations for modifications to the review process as necessary. Evaluate the effectiveness of BMP use, location, installation and compliance at each site.

2. The vendor may be asked to make recommendations to enhance and/or modify Greenville

County's storm water management design criteria and requirements and/or update the design manual, as necessary, to achieve "MEP" standard, to meet new federal or state requirements and/or to include new "green" technology.

3. Enhance and update the Water Quality Protection Field Manual and flip book as necessary.

4. Currently we use City Works PLL software application that is used to track inspection results, store data and pictures and provide a month status report. Describe the vendor's recommendations on how our construction inspection staff should collect and report on our inspection activities. The Vendor should be capable of making changes to the software to make any changes recommended or required.

5. Evaluate BMP performance standards as needed.

6. Provide periodic Designer Training courses for plan reviewers, construction inspectors, and

County design community emphasizing post construction water quality BMP design.

7. Provide or assist in sponsoring contractor training to emphasize the importance of the installation and maintenance of sediment control and post construction BMPs.

H. Monitoring Data Collection

1. Describe how the vendor would recommend the county address its monitoring requirements as outlined in Permit No. SCS230001, to provide information to prioritize watersheds, to determine performance of selected BMPs, assist in illicit discharge detection, in securing appropriate TMDLs requirements for the County and to track the effectiveness of the storm water program.

2. Describe how the vendor would propose we address monitoring of pollutants in the Reedy

River due to the Reedy River Nutrient 5R stakeholder group. Include how samples will be collected including sampling protocols and frequencies.

3. Retain laboratory services to provide sample collection and/or analytical services as needed.

4. Manage all the data collected to allow analysis of the water body trends as it relates to both the monitored data and its correlated constituents. Annual, seasonal, monthly trends shall be developed, as well as trends associated with storm events.

5. Create an annual report summarizing the data collected and interpretation to provide a summary of any trends that were observed the previous year.

6. Recommend a monitoring plan for the other two high profile rivers associated with

Greenville County, the Enoree and the Saluda.

7. Use monitoring data to track effectiveness of storm water program.

8. Currently the county contracts to operate and maintain a network of water quality and water quantity monitoring stations in our three main watersheds. The current monitoring program utilizes sensor-based technologies. These devices require regular maintenance, calibration and verification to ensure accuracy. The contract services also maintain a network on rain gauges. How would the vendor recommend these station and gages be utilized in the proposed monitoring program?

I. Incorporation of Phase II Requirements

1. Assist in updating the Co-Permittee NPDES Compliance Manual as needed.

2. Maintain an online reporting mechanism for the Co-Permittee’s portion of the annual report. Describe how the information and data would be gathered and consolidated from the four co- permittee agencies.

3. Assist with developing SWPPP for municipal facilities.

4. Assist with developing Good housekeeping training.

J. TMDL's and Impaired Waters

1. Identify storm water runoff related contribution of pollutants associated with respective

TMDL's or 5R. Describe how the vendor will make this identification. Recommend BMPs to meet TMDL or 5R requirements and assist in developing measurable goals to determine if the BMPs are performing as desired.

2. Monitor and Modeling efforts to verify the TMDL or identify potential sources and effectiveness of BMPs and their applications. Describe how the vendor would recommend approaching compliance and verification of appropriate modeling.

3. Provide technical review of proposed TMDL's and report on its applicability and appropriateness.

4. Negotiate with SCDES to determine appropriate strategy or to coordinate the development and implementation of pending TMDL standards.

5. Provide legal research and if needed assistance of our legal staff if an appeal of a TMDL is required.

6. Participate in the Reedy River Water Quality group meetings and on committees as needed to provide technical guidance to county staff.

K. Other Services

1. Computer Programming/IT Assistance - Provide assistance to Greenville County's IT group in developing component applications. Provide assistance to NPDES-related County departments for capturing, storing and maintaining data. Work with County staff to configure the NPDES reporting system to produce a report format that matches the requirements of the permit. Provide GIS support to County staff in generating data sources such as spatially related information for storm water system inventory, illicit discharge, storm water utility billing information and annual reports. Transfer newly collected filed data periodically to the County's database.

2. Provide assistance to County legal office - Assistance as required in permit negotiation or appeal, enforcement actions, or other SCDHEC actions related to Greenville County will also be required by the consultant's senior personnel. This assistance may involve review of rules and regulations, legal authority, applications of regulations and standards to Greenville

County programs or facilities.

3. SCDES Audit - Assist the County in preparing for the audit once during the contract period with the preparation of presentations and reporting materials including PowerPoint presentations and copies of annual report sections. Assist the County during the audit by having the appropriate staff available to aid in answering questions and providing supporting data.

4. Annual Reporting to SCDEs - Develop and produce the annual program report as required by the permit. Assist County staff in determining the information to be included and in locating and formatting any data required to support the effectiveness of the program. These reports must be presented in the prescribed format given in the permit. They must include the measurable goals for each permit item and the data to support whether the goals were met during the permit year. Include in the report any modifications adding components, controls or requirements. Also, modifications replacing an ineffective or infeasible BMP with an alternate BMP should be included in the subsequent annual report.

5. Annual Work Plan - Develop an annual work plan which details the action items the vendor will complete to ensure compliance with the requirements to meet the permit stipulations and a modified version for SCDES.

6. Permit Renewal - Upon notification that permit renewal is eminent review the permit renewal package previously submitted to SCDES for possible modifications. Assist with negotiation with SCDES or EPA on the proposed terms of the new permit.

7. Five Year Budget Plan - Prior to the County's bi-annual budget preparation period a long-range plan will be developed related to the WMU prioritization areas and potential retrofit projects that would be needed to meet the permit requirements.

8. Assist the County in maintaining the Capital Improvement Project (CIP) Database for water quality projects. The database should allow for multi-departmental collaboration that tracks projects, their rankings, financing, timetable/scheduling.

9. Participate in monthly meeting with County staff to ensure proper communication, coordination and updates on outstanding work tasks.

10. Greenville County’s Multi-Jurisdictional Hazard Mitigation Plan (HMP) must be updated every 5 years. The tasks below shall be followed to create a Disaster Act of 2000 and

Community Rating System (CRS) compliant plan. Greenville County is a Category B

Repetitive Loss Property community with eleven repetitive loss properties. As such, the plan will follow the most current edition of the NFIP/CRS.

11. Provide assistance in updates to Greenville County’s Stormwater Management Plan (SWMP) documents and implementation of the action items listed within the document.

L. Coordinator’s Manual’s 10-step process. Maximizing CRS points is the goal.

1. Review the make-up of the Disaster Mitigation Committee (DMC) and identify additional members that may be needed to maximize points under this step.

2. Prepare a memorandum of understanding (MOU) with municipalities identifying data needs from each community, required involvement in the DMC, and deliverables to be provided to each municipality.

3. Prepare a tentative project schedule including DMC meetings and submitted to the County for review and approval.

4. Gather and review documents and data to assess the hazard and the problem. Data may include news articles, FEMA disaster reports, flood studies, county and city records, policies, procedures and ordinances, and personal interviews. Data regarding the demographics of the County and areas of potential growth should also be gathered.

5. Attend two public meetings (outside of DMC meetings) in “affected areas”. Work with the

County to determine appropriate watersheds for these meetings. These meetings must be held within two months of beginning the planning process. Provide presentation material describing the planning process and solicit relevant information from those in attendance.

6. Attend one public meeting in the latter stages of the planning process to obtain input on the recommended plan. Provide presentation material regarding the plan and facilitate the meeting. It is anticipated that this meeting will be held at County Square.

7. Meet with County public outreach staff to develop a plan for additional public information activities related to development of the HMP. Based on results of the meeting, draft a public information plan including activities and schedule. This plan shall be submitted to the

County for review and revision.

8. As part of that data gathering process, make phone calls to various agencies and organizations soliciting input and written data. Work with the County to identify additional non-community governmental agencies and organizations to contact up to a maximum of 15 agencies or organizations.

9. The South Carolina Hazard Mitigation Plan includes hazards that must be considered in the

Greenville County HMP (e.g., mudslides, sinkholes, and hail). While the State plan also includes man- made disasters such as terrorism, this plan will only address natural hazards.

10. Consider the historic frequency of these events, the magnitude associated with each hazard, and the likelihood of recurrence of these events. Based on the analysis, the County’s vulnerability to each hazard will be determined and used to guide the level of detail and attention given to that hazard in the final report. It is anticipated, based on the previous

HMP, that flooding and winter storms/ice events will be the primary hazards of concern.

Additional consideration should be given to localized flooding issues and potential dam failures. The HMP should include a section on each hazard including a brief description of previous events, the likelihood of recurrence, and the extent of the hazard. Mapping of past occurrences and extents of the hazard should be included. It should be noted that the

County is currently preparing a wildfire plan for the Paris Mountain area. This plan shall be incorporated into the HMP upon its completion. A brief discussion of potential climate change issues should also be included.

11. Perform a GIS exercise that combines the hazards extents mapping the assessment hazard proves with the County GIS data related to infrastructure location (i.e., roads, buildings, critical facilities, etc.) to identify public and private infrastructure that is most at risk to each hazard as well as a combined risk to all hazards.

12. Include in the assessment areas within the floodplain that provide natural floodplain functions such as wetlands, riparian areas, sensitive areas, and habit for rare or endangered species. Property ownership (public vs. private) will be determined using County data. A plan for use / protection of these properties shall be included in the HMP development process.

13. Obtain information from the County to conduct a repetitive loss assessment and to create repetitive loss area mapping as required to meet CRS program requirements and the

“Protected by the Privacy Act of 1974”. Potential causes for those properties being repetitive losses and potential solutions will be described in this section of the HMP.

14. The County’s annual outreach activity should be referenced in the HMP.

15. Propose a variety of mitigation activities along with mitigation strategies for each hazard of concern. These activities should be developed based on the existing HMP, public meetings, existing watershed studies, projects identified through discussions with the County and municipalities, and Consultant’s experience with other communities.

16. An initial meeting will be held with the DMC in which the vendor will describe the planning process, review the hazard and problem assessment, discuss mitigation strategies, review previous mitigation activities identified and/or completed in the County, and review activities on the proposed mitigation activities list.