2012 Ocean Ranger Guidebook Revision 3-7-12 - Alaska ...

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2012 Ocean Ranger Guidebook 3-7-12 Of particular concern here are split systems, either with inflow or outflow split. This may be more difficult to check than a simple single system. Citation: ADEC WW GP 1.5.4 The permittee must monitor the parameters listed in Table 1 and the appropriate Effluent Limit and Discharge Reporting Table (Table 2 through Table 7) as per 1.5.2 and 1.5.3 and any additional parameters required under the most recent version of the Department approved QA/QC plan (AS 46.03.465(d)). 1.5.5 All figures in the Effluent Limit and Discharge Reporting Tables represent maximum effluent limits unless otherwise indicated. The permittee must comply with the effluent limits at all times unless otherwise indicated, regardless of the frequency of monitoring or reporting required by other provisions of this permit. Job Aid Item: 1.7.c Text: Checked the GW and BW system connections to the Ballast Water system (tanks piping manifolds ) common connections (VSSP) What to check for: Check connections between ballast water and wastewater systems. Check that tanks used are included in the VSSP. Check that procedures are in place to prevent discharge of wastewater through the ballast water system or from holding tanks without a specific sampling program. Check that the vessel has ways to clean or flush out tanks and pipes that have been used for wastewater prior to use for ballast water. Background: Many vessels use ballast water tanks at times to hold wastewater. This is acceptable under the general permit and current regulations. By using ballast water tanks there is the potential for discharge of wastewater through the ballast water system. If wastewater was discharged from ballast holding tanks or pipes it would need to be treated, and it would have to be part of a sampling regime (sampling held wastewater). Some vessels pipe systems to and from WW holding tanks are complex and not easy to understand. OR needs to check this by visually tracking the major piping parts of the system. Ballast water tanks used for WW or waste solids need to be cleaned when used for ballast water operations in Alaska. A helpful check is on the operations and how treated stored WW and other WW is handled and discharged. Citations: ADEC WW GP 1.5.1.3 In addition, the samples must be representative of the treated sewage and treated graywater that is discharged into marine waters of the state. Treated sewage or treated graywater that is stored in holding tanks may only be discharged into marine waters of the state if the effluent from those tanks is sampled as part of the regulatory sampling regime that is detailed in the current approved VSSP. 18 AAC 69.030 (b) A vessel specific sampling plan must include (4) the capacity and location of each holding tank for treated sewage; 38
2012 Ocean Ranger Guidebook 3-7-12 (5) the capacity and location of each holding tank for graywater; (6) the capacity and location of each holding tank for combined treated sewage and graywater; Job Aid Item: 1.7.d Text: AWTS system is capable of performing IAW the vessels approved VSSP and General Permit What to check for: AWTS is operating and has no major issues that would seriously degrade the units ability to meet General Permit (and federal) wastewater limits. Background: ADEC has observed that an AWTS must be operational to meet permit and federal limits. These units are often made of individual components; the failure of one could lead to inadequately treated wastewater. For example, a failure of the UV system could allow high levels of bacteria to be discharged. If a membrane is ruptured and is continued to be used, this would allow solids and bacteria to pass through in high levels. Checks should be made if the system is operated as it regularly is during sample events. Citation: AK WW GP 1.5.5 All figures in the Effluent Limit and Discharge Reporting Tables represent maximum effluent limits unless otherwise indicated. The permittee must comply with the effluent limits at all times unless otherwise indicated, regardless of the frequency of monitoring or reporting required by other provisions of this permit. Job Aid Item: 1.7.e Text: Observe repairs, maintenance, cleaning and other operations that may affect the wastewater treatment plant effluent quality. (Example - back flush cleaning with chemicals). What to check for: Observe repairs and maintenance of the AWTS as opportunities come up. Watch for items that would degrade the performance of the system. Watch that cleaning chemicals (which can be very caustic) are handled properly and not directly discharged in Alaskan waters. Report equipment breakdowns if discharge continues. Background: Repairs, maintenance, breakdown, and cleaning are necessary to keep wastewater treatment systems functioning as designed. Failure to perform these or to incorrectly perform could lead to a failure of the treatment systems and exceedances of state and federal limits. It would be difficult to check everything, but obvious failures should be noted.These regular operations are also a good opportunity to check on ww related questions such as VSSP checks. Checks should be made if the system is operated or maintained as it regularly is during sample events. Citation: AK WW GP 1.5.5 All figures in the Effluent Limit and Discharge Reporting Tables represent maximum effluent limits unless otherwise indicated. The permittee must comply with the effluent limits at all times unless otherwise indicated, regardless of the frequency of monitoring or reporting required by other provisions of this permit. 39
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2012 Ocean Ranger Guidebook Revision 3-7-12 - Alaska ...

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