1 / 17

Copper Bottom Paints – A Rational Approach for Marina del Rey Greg Schem, CEO

Copper Bottom Paints – A Rational Approach for Marina del Rey Greg Schem, CEO Victor Espino, Service Manager Harbor Real Estate Group, LLC April 24, 2014. Bio-fouling over the Years. Techniques of using copper and pitch date back to 1500 BC by Carthaginians and Phoenicians

shilah
Download Presentation

Copper Bottom Paints – A Rational Approach for Marina del Rey Greg Schem, CEO

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Copper Bottom Paints – A Rational Approach for Marina del Rey Greg Schem, CEO Victor Espino, Service Manager Harbor Real Estate Group, LLC April 24, 2014

  2. Bio-fouling over the Years • Techniques of using copper and pitch date back to 1500 BC by Carthaginians and Phoenicians • Royal Navy adds copper to fleet beginning 1770 • “Copper-Bottomed”: dependable, trustworthy • Iron Hulled Ships, electrolysis issues • Strong Biocides: TBT, Lead, Arsenic • New Biocides: Non-Copper vs Biocide Free Confusion • Econea, Zinc, Soft bottoms, ultrasound, nanotechnology

  3. Copper Bottom

  4. Bio-Fouling Organisms

  5. California Regional Water Quality Control Board (“RWQCB”) • 2006: Portion of MDR is Designated as an “Impaired Waterway” • 2014: Reconsideration Meeting, All of MDR designated Impaired along with Sediment • Copper, Lead, Zinc, Chlordane, DDT, BCB’s, etc. • Problem for: Water Contact, Shellfish Harvesting, Commercial and Sportfishing, Wildlife Habitat, Marine, Habitat. • 10 years to Reduce Copper by 85% • Potentially Dredge Entire Marina One Foot Deep: 1.7 million cubic feet • Push to Non-Biocide Paints • AB 425: Leech rates and reformulation recommendations. • Stripping Bottoms to accommodate Non-biocide Paints • BMP’s for Divers • Economic Analysis by RWQCB

  6. Stripping Bottoms Copper Bottom Stripping Copper Waste

  7. Bottom Paints Basics • Biocide Paints: • Copper • Other metals • Other biocides (Econea, Irgarol, snake oil) • Non-Biocide Paints: • Hard bottom • Soft bottom silicates (Intersleek) • Slip liners

  8. Slip Liners Only relocates bio-fouling to the bottom of the liner which will become very heavy and difficult to haul and clean. Also, pesticides used in the liner can be released into the environment and liners are primarily for smaller vessels.

  9. How do Copper Bottom Paints Work? • Cu+ and Cu+2 ion • Self Polishing or Ablative action • Bio-Availability and Toxicity • Total Copper vs Biotic Ligand Model (“BLM”) • Biocide of Choice? • Kills most invasive species • CA Department of Pesticide Regulation (“DPR”)

  10. Paints Currently In Use at The BoatYard

  11. Hydrocoat SR on Hatteras

  12. Issues with Non-Biocide Paints • Increased expense to strip bottom ($8,000 avg) • Increased cost of paint • Silicate paints are soft and easily damaged • Will not last as long as biocide paints • No manufacturer warranty and release required for Hydrosleek by Interlux • Potential increase in transport of invasive species • Require more frequent and more extensive periodic cleaning

  13. Intersleek 900 by Interlux

  14. Three Legs of a Stool • In order for any copper reduction plan to work it must have three solid legs: • Effective Alternatives: Alterntives must be proven to work in the real world and backed up by strong manufacturer warranty • Boater Buy-In: Boaters must believe this is the right thing to do and in their best interest for the benefit of the environment • Cost Effective: The alternative must be cost effective and readily avaialable.

  15. Implementation Issues • Designating the County, the Lessees, and Boat Owners as Potentially responsible Parties (“PRP’s”), Citizen Law Suits under CWA • Enforcement Challenges: Transients, work done at other harbors • Selective Enforcement: MDR Only?! • Grants: Sounds good, but…. • Training Divers

  16. A Reasonable Approach • 1st: Site specific conditions and the adoption of the BLM • 2nd: Analysis of real world impacts on bio-availability, and benthic study of indicator species • 3rd: Remove or reduce Impaired Waterway designation for marinas. Parking lot for boats analogy. • 4th: Cost Benefit Analysis of copper risk vs carbon foot print of dredging • 5th: Combination of low copper paints, alternative biocides, and reduction in over-protective threshold can achieve compliance.

  17. Thank You from The BoatYard! (310) 823-8964 Visit Us: TBYMDR.com

More Related