Particulate Matter Monitoring
SCDES has developed an extensive ambient (outdoor) air quality monitoring network for PM 2.5, PM 10, and other pollutants to determine: highest concentrations of pollutants, representative concentrations in areas of high population density, impact on air quality of significant sources or source categories, general background concentrations, extent of regional pollutant transport, and welfare-…, PM Ambient Air Monitoring Network, The monitors' locations were selected by SCDES in accordance with EPA monitor-siting requirements found in the Code of Federal Regulations Title 40, Part 58, Appendices D and E ., PM 2.5 Monitoring Network Locations, In 2011, there were 14 PM 2.5 monitors strategically located in 10 counties throughout the state., PM 10 Monitoring Network Locations, In 2011, there were 9 PM 10 monitors strategically located throughout the state. , How PM Monitoring is Performed, PM 2.5 Monitoring, The main purpose of PM monitoring is to provide air quality data to local, state and national regulatory programs for determining whether an area has attained the National Ambient Air Quality Standards (standards). To ensure national consistency in air pollution monitoring, a Federal Reference Method (FRM) sampler is used for making comparisons to the standards. The current FRM for measuring PM 2…, PM 10 Monitoring, The PM 10 standards are expressed as a weight of PM 10 particles per volume of air (micrograms per cubic meter). PM 10 mass is collected using a high volume sampler. A high volume PM 10 sampler draws a known volume of ambient air at a constant flow rate through a size selective inlet and a filter. Particles in the PM 10 size range are then collected on the filter during the specified 24-hour…, Minimum Monitoring Requirements, PM 2.5 Minimum Monitoring Requirements, EPA determines the minimum number of PM 2.5 monitors that can adequately represent an area based on the Metropolitan Statistical Area (MSA), most recently measured PM 2.5 concentrations, and its population. The MSA may include heavily populated counties and adjacent counties that are closely related economically. The map below shows the minimum monitoring requirements for the MSAs in our state as…, PM 10 Minimum Monitoring Requirements, EPA determines the minimum number of PM 10 monitors that are required for an area is based on the MSA, most recently measured PM 10 concentrations, and the area's population. The MSA may include heavily populated counties and adjacent counties that are closely related economically. As the table below indicates, an MSA with a population of at least 250,000 and High PM 10 concentrations is required…, MSA Population Level of PM 10 Concentration, Category 1 High 2 Medium 3 Low 4,5 > 1,000,000 6 - 10 4 - 8 2 - 4 500,000 - 1,000,000 4 - 8 2 - 4 1 - 2 250,000 - 500,000 3 - 4 1 - 2 0 - 1 100,000 - 250,000 1 - 2 0 - 1 0, 1, Selection of urban areas and actual numbers of stations per area will be jointly determined by EPA and the State agency., 2, High concentration areas are those for which ambient PM 10 data show ambient concentrations exceeding the PM 10 standard by 20 percent or more., 3, Medium concentration areas are those for which ambient PM 10 data show ambient concentrations exceeding 80 percent of the PM 10 standard., 4, Low concentration areas are those for which ambient PM 10 data show ambient concentrations less than 80 percent of the PM 10 standard., 5, These minimum monitoring requirements apply in the absence of a design value. The map below indicates that the Charlotte-Gastonia-Rock Hill NC-SC MSA requires 2-4 monitors. The Greenville-Maudlin-Easley, Columbia, Charleston-North Charleston-Summerville and Richmond County, GA-SC MSAs require 1-2 monitors. The Spartanburg and Myrtle Beach-North Myrtle Beach-Conway MSAs require 0-1 monitors. The…Radiation & Nuclear Topics FAQ
Water Regulations & Standards: Public Swimming Pools
Regulation 61-51: Public Swimming Pools, A: Definitions, B: Construction and Operating Permits, Applicability Construction Permit Application for Permit to Construct Plans and Specifications Design/Equipment Changes Piping Inspection Final Approval Fees Repeat Inspections Construction Contractor Permit Terms, C: General Construction Requirements for All Public Swimming Pools, Applicability Water Supply Sanitary Sewage Location Material and Finish Pool Decks Depth Markers Fences Equipment Room Chemical Storage Drinking Fountain Emergency Notification Device Bathhouse Facilities Minimum Toilet Facilities Filtration System Filter Backwash Pool Drainage Rate of Flow Indicator Heater Pump and Motor Water Treatment Separate System Automatic Controller Piping Pool Inlets and…, D: Public Swimming Pool Design Requirements for Type "A" and "B," and "G" Pools, Applicability Pool Depths Diving Towers, Stands, and Sliding Boards Recirculation System Vacuum Lines Pool Deck Pool Width Type "G" Pools, E. Design Requirements for Type "C" Pools, Applicability Type "C" Pools Spray Pools Recirculation System Pool Deck Sliding Boards Steps Fill Line Automatic Controllers, F: Design of Type "D" Pools, Applicability Type "D" Pools Recirculation System Pool Deck Pool Temperatures Automatic Controllers, G: Design of Type "E" Pools, Applicability Type "E" Pools Waterslides and Flumes Lazy Rivers Wave Pool, Activity Pools and Kiddie Play Parks Recirculation System Automatic Controllers Pool Deck, H: Design of Type "F" Pools, Applicability Section C Applicable Recirculation System Automatic Controllers Pool Deck, I: Equipment Changes and Alterations, Applicability Structural Changes Equipment Changes Pump and Filter Changes Deck Changes Pool Resurfacing and Painting Piping Changes New Construction Slides Other Changes, J: Operation and Maintenance for All Pool Types, Applicability Operating Permits Address and Ownership Changes Housekeeping Water Supply Drinking Water Fountain Sanitary Sewage Equipment Enclosure Recirculation System Accidents Safety Precautions Swimming Limit Water Clarity Water Quality Automatic Controllers Pool Temperatures Operation Reports Pool Operator Depth Markers Bacteriological Quality Inspection of Facilities and Sampling of Pool…, K: Pool Closures and Enforcement, Closure of Public Swimming Pools Automatic Controllers Penalties and EnforcementCommonly Asked Pool Questions
Q. What are the required levels for pH and Chlorine?, A. pH is 7.0 to 7.8, Chlorine is 1 to 8 ppm (parts per million)., Q. How do I dispose of old pool chemicals?, A. Questions concerning disposal of chemicals should be referred to the Bureau of Land and Waste Management (803) 896-4000. Some municipalities and water treatment facilities may be willing to take expired HTH to use in their treatment procedures., Q. How do I keep chlorine/bromine levels within the required range between absence of swimmers and full bather load, ? A. Maintaining a free available chlorine residual between 1.0 and 8.0 ppm should be attainable if proper monitoring is conducted. If you anticipate a high bather load, simply monitor and adjust as needed. Even extreme bather loads should not decrease the halogen level to a point of being out of compliance unless routine monitoring is not conducted properly., Q. What is the lifeline requirement when I have lap swimming and children in the pool at the same time?, A. According to Reg. 61-51, if lap swimming is taking place, it is fine for the lifeline to be removed. If there are children swimming in the pool at the same time that lap swim is taking place, it is recommended that the line be in position in the children's swimming area. The lifeline must be replaced as soon as lap swimming is over., Q. Shouldn't rescue tubes be a mandatory part of the life-saving equipment at all pools since lifeguards are trained with them?, A: Rescue tubes are only required at pools where lifeguards are required (type A and E facilities)., Q. My spa's automatic controller digital readout is given as an oxidation reduction potential (ORP) level instead of a parts per million (PPM) level. How do I equate the two readings?, A. Generally experts recommend that an automatic controller's ORP level be set between 650 mV and 750 mV. However, factors such as system calibration accuracy and other water chemistry parameters (cyanuric acid levels) may affect the ORP readings. If you have specific questions about your controller and its ORP readings, contact a qualified pool or spa service representative. Please remember that…Swimming Pool Permitting and Compliance
Swimming Pools - Permitting Forms, Guidance, , Forms (permitting, change orders, final inspection checklist, incident reports, bacteriological monitoring) Change Order Questions Permitting Guidance Document Fee Questions Common Pool Questions SC Pool Operator of Record Fecal Accident Response Blood and Vomit Contamination of Pool Water Body Fluid Spills on Pool Surfaces ,Saluda River NDPES Permit Renewal
Saluda River NPDES Permits - Renewal, DHEC has updated a water quality model for the Saluda, Broad and Congaree Rivers. This will require changes to discharges into these midlands rivers. Because of the high public interest in the Lower Saluda River, DHEC is working on the domestic NPDES renewal applications for the Lower Saluda at the same time. We welcome your input and would also like to give you information about the Midlands…, This page is a supplement to the NPDES public notice: 18-021-H, Download this public notice supplement - (PDF) NPDES PERMITS The following NPDES domestic wastewater permits renewal applications are currently in review and are the subject of the meeting and hearing described below: Draft Permit - Palmetto Wastewater Reclamation/Alpine (SC0029483) - (PDF) Draft Permit - Synergy Utilities/Bush River (SC0032743) - (PDF) Draft Permit - Palmetto Wastewater…, Midlands Rivers Coalition: One Scenic River - One Goal - Many Partners, A variety of stakeholders came together to start an enhanced monitoring program for the Lower Saluda Scenic River during the 2017 recreational season. We want to encourage safe recreational use of the river. We are excited to announce that weekly water quality data will be accessible from www.howsmyscriver.org . The Coalition (formerly Lower Saluda River Coalition) is made up of river related…Seaco Site
This webpage is no longer maintained. It may be useful as background information or to provide a historical perspective on a topic or project. , The South Carolina Department of Health and Environmental Control (DHEC) has developed this website to inform citizens of issues related to Seaco and its associated properties. This website will: Provide quick access to information about the site and associated properties; Provide a way for citizens to receive updates and sign-up to be on our mailing list ; and Continue to grow as more…, Seaco, Inc., The Seaco, Inc. property includes approximately 3 acres and is located at Commerce Drive and William H. Tuller Drive (also known as Industrial Drive) in Columbia. The property was used by a fertilizer manufacturer prior to being bought by Seaco, Inc. in 1949 for an asphalt emulsion plant. Numerous above ground storage tanks are located on the property. The property is in an industrial and…, Bagnal Builders, The Bagnal Builders property includes approximately 8.6 acres and is located at South Edisto Avenue in Columbia. The property may have been used for fertilizer or phosphate-related operations. In the mid-1950s, Bagnal Builders supplied building materials (lumber and sheet rock) and used the property for warehouse storage, office space, appliance repair, and cabinet-making. Above ground and…2023 Tide Tables
"Three Stooges," Folly Beach County Park - Photo by Pam DeChellis, Download a convenient desk version of the 2023 Tide Chart, 2023 Tide Tables - Quick Views:, January, February, March, April, May, June, July, August, September, October, November, December, Note: All times indicated are for Charleston - Custom House. Tide heights relative to Mean Lower Low Water., Tide data provided courtesy of the National Oceanic and Atmospheric Administration (NOAA), Location Correction Information, Location High Tide Time Difference Cherry Grove +10 min. Myrtle Beach, Springmaid Pier -26 min. Socastee Bridge ICWW +3 hr. 26 min. Garden City Pier -26 min. Litchfield Beach Bridge +44 min. Pawleys Island Pier -24 min. Winyah Bay Entrance -21 min. Georgetown, Sampit River +1 hr. 25 min. Isle of Palms Pier -25 min. Cooper River, Goose Creek Entrance +43 min. Ashley River, Magnolia Gardens +1 hr.…, Distribution Locations - Limited to Supply On-Hand, The 2023 Tide Table Posters will be available soon. Quantities will be limited to supply on-hand at select SCDES office locations. Please call ahead to check availability and office hours., Myrtle Beach/Grand Strand, 927 Shine Ave. Myrtle Beach, SC 29577 Tel:, (843) 238-4528, Charleston, 1362 McMillan Ave. Suite 400 Charleston, SC 29405 Tel:, (843) 953-0200 , Beaufort, 104 Parker Drive Beaufort, SC 29906 Tel:, (843) 846-9400 , Tide Charts are not intended for individual retail sale., For all order inquiries, please contact Liz Hartje at, hartjeen@dhec.sc.gov, or , 843-953-9237, .Ocean Management and Planning
In addition to managing onshore coastal resources, SCDES BCM is responsible for managing ocean resources within South Carolina's state waters which extend out to three (3) nautical miles offshore. State marine waters include critical habitats for commercially and recreationally important fisheries, as well as significant mineral and sand resources. Due to their proximity to land, state waters are…, Management Authorities, SC Coastal Zone Management Program Federal Coastal Zone Management Act, Research and Policy Development, SC Ocean Planning Workgroup - Final Report (2012), Resources, SCDES BCM State of the Knowledge Report: Ocean Planning (pdf) Ocean Use and Public Perception Survey Results (2008) (pdf) S.C. Energy Office Renewable Energy Home PageAccesibilidad, no discriminación, avisos de privacidad