Water Services

Weaver Engineering Water Services

Storm Water

Storm Water

Stormwater management is more comprehensive today than it has been in the past. Until recently, storm water management typically dealt with water quantity issues such as designing collection systems to swiftly carry runoff to receiving streams in order to avoid flooding developments.

As a result of the 1987 Amendments to the Clean Water Act (CWA), the U.S. Environmental Protection Agency (EPA) developed Phase I and Phase II of the NPDES Stormwater Program to address water quality issues. The increase in regulatory requirements is driving a paradigm shift within the engineering industry resulting in the need to manage storm water from a holistic approach. Stormwater management now includes both quantity and quality components of managing runoff resulting from precipitation events.

Weaver Engineering's professionals have experience and technical abilities in all aspects of storm water management from conception and planning to design. Whether you need a comprehensive storm water management program or a storm drainage system design, Weaver Engineering can meet your needs.

Financial Analysis and Rate Studies
The establishment of an adequate rate schedule should reflect the cost of providing that service to different classes of customers. In order to conduct a sound analysis of the adequacy of charges, Weaver Engineering allocates the costs among customers commensurate with their service requirements in order to recognize differences in costs of furnishing service to different types of customers (residential, commercial, and industrial). Weaver Engineering then develops rates to recover the cost of services equitably from each class. Additional components of a rate study may include impact fee development, wholesale rate development, and capital expenditure programs.
Grant and Loan Administration Assistance

Weaver Engineering helps clients find grant and loan funding for projects, and provides assistance on projects from concept through construction, including administration that complies fully with funding agency rules and regulations. We have staff with experience in every major federal and state grant and loan program, including the U. S. Environmental Protection Agency (EPA), Economic Development Administration (EDA), USDA Rural Development Administration (RDA), Community Development Block Grants (CDBG), Clean Water and Drinking Water State Revolving Funds (CWSRF and DWSRF), S. C. Rural Infrastructure Fund (RIF), and many other specialized funding programs offered by state and federal agencies.

Weaver Engineering is familiar with these programs, their eligibility requirements, processes and documents, and we have good working relationships with the key administrative people who staff the funding agencies. We prepare competitive applications, resolve problems that may arise during projects, negotiate required changes, and help to keep projects on track. Our detailed knowledge saves clients time and expense, and assures that projects get the thorough administrative assistance that the funding sources require.

Building Services

Weaver Engineering can provide various building services to support design projects ranging from water and wastewater treatment facilities to commercial, residential and industrial site development and industrial parks.

Construction Administration and Observation

Weaver Engineering has provided construction administration and observation services for literally thousands of projects. Our research is thorough, our specifications are prepared to high standards, and our long-standing, amicable relationship with regulatory agency personnel allows us to move through the permitting process in a timely manner. We have the capacity to quickly and diplomatically resolve any issue that may arise.

Weaver Engineering can expertly prepare required documentation and help coordinate the bidding process. We also have an excellent track record of helping to select the appropriate contractor for a given job. As part of these services, Weaver Engineering provides drawings and contract documents for bidders to review, and we fully participate in pre-bid conferences and bid openings. Once work is underway, we evaluate all submissions from contractors and make recommendations in the best interest of our client. Appropriate contract documents are executed, and all required plans and paperwork are submitted to the contractor. Over the course of construction, Weaver Engineering reviews contractor submittals and pay requests, makes scheduled visits to project sites, and provides field reports in accordance with our client's needs.

Weaver Engineering employs highly experienced construction observers. Our Project Representatives have decades of experience providing construction observation services in the field and are tenacious in their efforts to ensure actual construction and materials used in the field meet the parameters and specifications of the project's design and guidelines. The relationships our Project Representatives maintain with local contractors are an asset to each project.

Storm Water Planning

Weaver Engineering has experience developing Master Plans for storm water collection systems. This type of long range planning is important with prioritizing capital improvements as well as establishing storm water utilities.

Part of the master planning process includes performing cost analyses of proposed system improvements and expansions. These master plans may address an area's future storm water collection system and/or design needs and the infrastructure required to meet potential needs and/or regulatory requirements. In such cases, planning services include inventory of existing collection systems, modeling for a specific storm event (quality and/or quantity) and modeling system improvements. The result is a reliable plan that will be an effective administrative tool.

Regulatory Compliance

Perhaps the greatest asset that Weaver Engineering provides our clients is our rapport with local, state, and federal permitting agencies. Through our history of work on thousands of engineering projects, Weaver Engineering has gained extensive experience with all state and federal agencies that hold regulatory authority over our clients' projects. Our permitting success results from proper initial permit preparation, relationships with regulatory personnel, and regular follow-ups to help ensure permits are issued within the time frames needed to meet our clients' schedules.

Weaver Engineering works regularly with the South Carolina Department of Health and Environmental Control (SCDHEC), the National Oceanic and Atmospheric Administration (NOAA), the United States Army Corps of Engineers (USACE), the Environmental Protection Agency (EPA), and the South Carolina Department of Transportation (SCDOT), as well as a variety of other agencies to obtain permits for projects throughout the Southeast.

For projects involving greater permitting complexity, Weaver Engineering employs a full-time, dedicated Permitting Specialist with extensive experience preparing right-of way encroachment permits for roadways, railroads, South Carolina Budget and Control Board Easement applications, and more. Weaver Engineering also employs an Environmental Health and Safety Manager and a Hydrogeologist who have extensive experience working with the SCDHEC, the USACE, the U.S. Fish and Wildlife Services (USFWS), the South Carolina Department of Natural Resources (SCDNR), and other state and federal regulatory agencies.

By staying abreast of current regulations through training, publication subscriptions, and professional memberships, Weaver Engineering provides our engineers and clients with the information required to effectively comply with, as well as develop proactive approaches to, the latest legislative developments.

Weaver Engineering also provides professional services for environmental compliance. Weaver Engineering's acquired knowledge and practical experience allows us to help our clients successfully obtain and maintain environmental compliance. Preparing and integrating environmental compliance programs into an organization's infrastructure is a demanding, time consuming, and complex process. Weaver Engineering has partnered with public and private sector clients to find cost-effective solutions that are customized to meet their environmental management needs. Our focus is on compliance through better management, procedures, implementation and documentation.

Storm Drainage System Design

Weaver Engineering has extensive experience with the planning, design, and construction administration/observation of storm drainage systems of varying types and sizes. Site development services are a significant part of our business, and many of our site development projects involve the initial design of storm drainage systems or the design of modifications and improvements to existing systems within already developed communities.

Our expert services include engineering for large municipal storm drainage systems and the design of major storm drainage renovations and expansions. Using our extensive technical knowledge and resources, Weaver Engineering is able to design storm drainage for residential subdivisions, urban developments, industrial sites, shopping centers, tourism areas, and apartment complexes. No matter what the storm drainage project, Weaver Engineering looks for the most reliable and cost-effective solution for optimal performance.

NPDES Phase I & Phase II Compliance

Weaver Engineering has the appropriate experience and resources to help counties and municipalities comply with NPDES storm water regulations. We have extensive experience working with federal, state and local agencies involved in the NPDES storm water program. Our firm employs personnel who are intimately familiar with all aspects of these regulations and who have had extensive training in storm water, including Phase II NPDES compliance.

Weaver Engineering has completed NPDES Phase I and II projects for counties and municipalities throughout the South Carolina.

Storm Water Pollution Prevention Plans
Weaver Engineering has extensive experience developing Storm Water Pollution Prevention Plans (SWPPPs). During the past five (5) years, we have completed nearly ninety (90) SWPPPs for municipal and private industry clients across South Carolina.
Storm Water Mapping and GIS
Storm Water system mapping has become an essential element for the effective management of storm water utilities due to ever increasing compliance requirements for Phase I and Phase II NPDES permits. Weaver Engineering has provided storm water system mapping services to a wide range of clients with varying system complexities. Weaver Engineering has an experienced GIS team whose main focus is on the utility industry. Weaver Engineering has continued this commitment by providing GIS services and solutions designed specifically for the utility industry. Our GIS professionals know utilities and have access to experts in all fields of the industry. Our dedication and experience enables Weaver Engineering to offer cost effective GIS services and solutions that best fit your needs.
Storm Water Modeling

Weaver Engineering is equipped with advanced hydrologic and hydraulic computer modeling software that allows us to create 10-, 50-, 100-, and 500-year flood plain models.We utilize a wide range of storm water modeling programs including:






Drain: Edge


These programs estimate flow rates, develop water surface profiles, and design retention and detention ponds as well as determine channel capacities; and perform floodplain and floodway calculations. The combination of Weaver Engineering's experience and technical ability allows us to identify deficiencies in each storm drainage system we model and to provide methods of bringing flood elevations to acceptable levels. Storm drainage modeling helps accurately size retention and detention ponds in order to lower post-developed flows to pre-developed levels.Weaver Engineering's engineers work aggressively to remain current with the latest engineering theories and technology. Our staff stays abreast of new and proposed regulations as well as modeling advancements affecting storm water issues. Because of our active professional development, experience, and technical understanding, clients can rely on Weaver Engineering to successfully complete any storm water management project.