- slipway activities,
- where a slipway can/cannot achieve Draft Guidelines recommendation objectives,
- adjacent community/industry activities,
- water flows past the facility,
- substrate type,
- siltation tests if and where needed,
- slipway volume/traffic,
- other adjacent sources of pollution or environmental loading,
- environmental cost benefit analysis
- slipway economic cost benefit analysis
- geographic situation/importance in marine safety.
If individual slipway assessment proves that achieving the objective (stated in a recommendation in the Draft Guidelines) will make a measurable difference and improvement to the environment around a slipway, then (in consultation and cooperation with the owner/operator) assistance should be given to sourcing suitable funding to achieve this.
In the interim, specific slipway activities may have to be scaled back at slipways where activities impinge on the quality of the marine environment, other stakeholders and community activities.
If there is no measurable deleterious effect from slipway activities on the adjacent marine environment or to other stakeholders, then TFIC has to seriously question the advantages or outcomes from expecting a marginal operator to invest additional funds (seemingly unnecessarily) unless there is additional funding assistance available.
Categorisation [As also detailed in Appendix (a)]
Once this assessment is completed, another measure that may be appropriate could involve the categorisation of slipways. A system such as this could be phased in over an appropriate timeframe with all commercial slipways working to an agreed code of conduct. This code should include a determination for all participants to achieve as many of the objectives as possible as are recommended in the Draft Guidelines.
Bear in mind that what is listed below is simply a series of suggestions to get the ball rolling. They may not be workable in this form.
Category A
For instance, those slipways that do full maintenance on larger vessels from a certain agreed tonnage could be designated Category A. They would have to demonstrate a willingness and capacity to conform to an agreed number of the recommendations within the Draft Guidelines and would be able to carry out all necessary vessel maintenance activities as required. They would be situated away from sensitive areas and areas used for recreation, as well as other industries that could be adversely affected by slipway activities.
Category B
Perhaps Category B slipways may only handle vessels to a maximum agreed tonnage (less than Category A) with all slipway activities permitted if the equipment and infrastructure is in place to conform to an agreed number of the recommendations in the Draft Guidelines.
Category C
Those who would normally fit into Category B but are unable to conform to the majority of the recommendations could perhaps have limitations placed on some of their activities, (such as no sand/grit blasting) yet continue their work as Category C slipways. Many may already have limitations placed on them. Slipway activities unavoidably impacting on adjacent industry, primary production or community activities may fall into this category.
Category D
This category may include those that cannot seal or concrete their hard stand area or are unable to control waste material from the hulls, yet can perform other maintenance work. Hull maintenance may be restricted to washing down and repainting, but no paint removal permitted.
Category E
Category E may be those yacht clubs that have haul-out and hard stand areas. They would have to be able to demonstrate that they have agreed limitations placed on activities and that they are conforming to an agreed number of Draft Guideline recommendations. Being part of a code of conduct agreement may be helpful.
Category F
Category F may be privately owned slipways as are common on the West Coast for commercial fishing vessels. Activities taking place on these slipways would be limited to normal routine maintenance, excluding the removal of anti-foulants. Normal hull washing may or may not be appropriate.
Category G
Category G may be all other privately owned slipways that are used simply for putting a boat into the water or retrieving it. Limited or clearly prescribed maintenance would possibly be permitted.
Banned coatings; e.g., tri-butyl-tin (TBT)
While there is a world-wide initiative to ban TBT hull coatings, it is likely that the problem of TBT contamination of the marine environment will persist for a number of years as existing spent hull coatings are removed from hulls.
TFIC submits that a way to ensure a responsible handling of this problem would be to certify all boats that have a TBT free hull and have this certification as part of the vessel survey. Those that are unable to demonstrate a TBT-free hull, or those where a test detects TBT should attend (for that one particular maintenance event) a certified slipway capable of appropriately removing and disposing of the waste hull material, in order to gain the TBT free certification.
Disposal of waste material
Both the Draft Guidelines and the DPIWE website are not particularly clear as to the best way for Tasmanian Slipways to dispose of controlled wastes removed from boat hulls. Numerous comments within the Draft Guidelines indicate that some disposal of some substances through the sewage system may be appropriate with Council approval.
TFIC questions this process. If substances containing biocides are introduced to the sewage system (that relies on microbiological activity to treat the effluent) how can this process be advantageous or responsible? What method of assessment or monitoring can be put in place to ascertain that the substance will not adversely affect the sewage treatment? If the sewage outfall exhausts into the marine environment, surely there is an elevated risk of contamination?
If substances containing heavy metals such as copper and tin are introduced into the sewage system, they will exit the system into the marine environment unchanged and constitute the same environmental pollution loading, but in a different location. How can this be responsible stewardship of the environment?
There clearly needs to be a system established here in Tasmania for the disposal of controlled waste. To rely on Victorian companies to remove it every three months or so at significant cost is inappropriate.
Project Officer
TFIC submits that it would seem appropriate for the Department to appoint a dedicated Project Officer to work with slipway operators in an effort to encourage modification of slipways and slipway activity. Some form of partnership agreement between the Department and stakeholders may be of value, whereby the officer works constructively with the slipway operators rather than in an enforcement capacity.
This agreement will detail the Draft Guidelines recommendations that are achievable, and establish a realistic timeframe to make the modifications to the slipway itself, to the work activity that takes place on the slipway, or to the work ethic that the slipway embraces.
This officer's duties could include the assessment/categorisation of slipways, as well as working with individual operators investigating ways to achieve compliance with recommendations within the Draft Guidelines within an agreed timeframe.
When considering each slipway individually, some form of standard needs to be established regarding some of the basic modifications that may need to be done to various slipways. Examples of these standards may include the dimensions and positioning of bund walls and spoon drains, settlement tanks, pumps, waste containment and disposal etc.
The Project Officer would also be involved in the identification of funding sources and assist in applying for funds should that be necessary for slipway improvements.
It is very important that efforts be made to establish a realistic timeframe for any change within the industry to ensure that there is minimal disruption to survey and maintenance work on commercial vessels, while providing minimal increases in costs to the industry.
Contaminated areas
While controls are being established for responsible slipway activities, the question must be asked about existing contaminated sites that have had slipway activities taking place on them for decades with little or no care for the environment. These sites exist, with measurable amounts of pollutants being released and washed into the marine environment at each rain or storm event. These pollutants can and do adversely affect marine farmers.
TFIC submits that while it may be cost effective to concentrate on existing activities, contaminated ground should be identified and rehabilitated. This should have the effect of reducing conflict between existing slipway operations and other adjacent industries.
Summary
The clear objective should be to assess the current situation at individual slipways and to reduce the level of contaminants entering the marine environment by carefully planning viable actions that may be appropriate. This will need realistic timeframes along with funding assistance to retain individual slips and to keep slipping costs at minimum levels.
TFIC strongly advocates the following measures to be taken with commercial slipways:
- Clear definitions of each type of slipway/haulout operation or method should be established and included within the Draft Guidelines.
- All slipway operators should be encouraged to join into some form of association that gives them a common voice and lobbying power.
- A slipways register should be established, detailing all slipways around Tasmania.
- All slipways should be individually assessed and categorised (small private launching rails evaluated through questionnaire if possible).
- Commercial vessels should be able to have certification that the hull is free of TBT as a part of the vessel survey. Where there is any doubt, the vessel should have the paint removed and replaced at a slipway capable of carrying out this work in an appropriate manner, with certification issued.
- A system for the appropriate disposal of controlled wastes such as hull coatings should be established within Tasmania to provide a cost effective and efficient means of waste disposal.
- A dedicated Project Officer should be appointed specifically to work constructively with the slipway industry.
- A basic standard should be devised and developed that consider the basic modifications needed for compliance with Draft Guidelines recommendations, addressing such things as bund wall/spoon drain position and dimensions.
- Each slipway should be assessed to establish which of the Draft Guidelines recommendations are possible to achieve, also considering innovative measures that will achieve the same outcomes. These may include a modification of work ethics and/or a reduction of some slipway activities.
- A partnership agreement should be established between the department and individual slipway operators, detailing which of the Draft Guidelines recommendations may be achievable, establishing a timeframe that is realistic and appropriate for any agreed modifications while also assisting with the sourcing/application process of external funding.
- Areas contaminated with chemicals from previous slipway operations should be identified and rehabilitated within a realistic timeframe.
Appendix (a) Fishing Today August/Sept. 2003 Article