AUGUST 2019

SURFACE WATER MANAGEMENT PLAN

AND EROSION CONTROL ENVIRONMENTAL WORKS

SAM’S LIQUID WASTE & HIRE

WATER STORAGES AND OPERATIONS

PREPARED FOR SAMS LIQUID WASTE & HIRE - EPA Licensed FACILITY No. 20507

Prepared By Jody R Bailey BSc MRACI CChem

Principal Scientist

Bairad Pty Ltd

Note: The information contained in this document produced by Bairad (Science) Pty Ltd is solely for the use of the client identified on the front page of this report. Our client becomes the owner of this document. This document must not be used for any purposes other than those of the document’s owner. Bairad undertakes no duty to or accepts any responsibility to any third party who may rely upon this document for any purpose.

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CONTENTSIntroduction..........................................................................................................................................................2

References.............................................................................................................................................................2

Location and Site...................................................................................................................................................2

Figure 1. Dubbo Location and Sam’s Waste Site, Narromine & Richardson Roads Dubbo...........................3

Figure 2 – Sam’s Waste Site Aerial Photograph................................................................................................3

Figure 3 – Sam’s Waste Site Map Diagram Showing Surface Contours on Operations Site..........................4

Pollution Control Works and Surface Water Management Plan............................................................................4

EPL20507 Section 8 Conditions U1.1 – 1.3........................................................................................................5

New Pollution Control Works - Photos and Diagrams...........................................................................................6

INTRODUCTION This document is presented as required by NSW EPA under EPL 20507, held by Harley Job, Sam’s Waste Management, issued with variation in April, 2019.

REFERENCES“Sediment and Erosion Control on Building Sites” Gems Pty Ltd – Nepean Catchment Authority

“Managing Urban Stormwater – Soils and Construction” – The Blue Book

“Erosion and Sediment Control - A GUIDE FOR LOCAL COUNCILS” Department of Environment and

Conservation (DEC)

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SAM’S WASTE MANAGEMENT SURFACE WATER MANAGEMENT PLAN

LOCATION AND SITEThe following diagrams and photographs show the site located at 18R Narromine Rd, Dubbo.

FIGURE 1. DUBBO LOCATION AND SAM’S WASTE SITE, NARROMINE & RICHARDSON ROADS DUBBO.

FIGURE 2 – SAM’S WASTE SITE AERIAL PHOTOGRAPH

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SITE MAP

FIGURE 3 – SAM’S WASTE SITE MAP DIAGRAM SHOWING SURFACE CONTOURS ON OPERATIONS SITE

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POLLUTION CONTROL WORKS AND SURFACE WATER MANAGEMENT PLANSam’s Waste at Dubbo operates under EPL20507. A recent EPL review by the NSW EPA Dubbo office added the following:

EPL20507 SECTION 8 CONDITIONS U1.1 – 1.3.

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THE DIAGRAM BELOW SHOWS THE LOCATIONS OF THE NEW WORKS.

The photos below shows (a) & (b) the newly installed grated storm drain/drive over bund, and (c) where the new storm drain/bund intersects the existing storm drain at the blind sump. The details of that installation were presented in a letter from Pelham Job to Helen Smith on the 12 th of July.

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NEW POLLUTION CONTROL WORKS - PHOTOS AND DIAGRAMS

PHOTO (A) PHOTO (B) PHOTO (C)

See photograph (d) below showing the bunding on the western drive-through entrance. It is installed in the location described in the PRSP and is to be sealed with a polymer sealant.

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See the photos below showing (e) the newly installed sediment basin and (f) earthen bunds to direct surface water and protect for erosion run-off from the laydown yard from the site.

PHOTO (E)

PHOTO (F)

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See the following photo (g) showing the roof repairs on the shed in the mud drying area. See also Photo (f) which shows the mud drying area earthen bund.

PHOTO (G)

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SAM’S WASTE - SPILL CONTAINMENT AND WATER SEGREGATION SYSTEMFrom EPL20507:

The photograph below (Figure 5) shows the location and extent of the bunded Water Treatment Plants. The operations include tanker discharge, primary separation, material transfer, liquid storage, oily water treatment, certified trade waste to sewer, and collected oil transfer and storage.

All these operations and activities are performed within Sam’s Waste Spill Containment System, in the bunded containment area indicated (Water Treatment Plants) in Figures 5 & 6. This bunded containment meets the requirement to separate contaminated, dirty and clean waters.

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FIGURES 5 ABOVE & 6 BELOW - (CLOSE UP) - SAM’S WASTE SPILL CONTAINMENT AND WATER SEGREGATION

EXISTING WATER STORAGES AND OPERATIONS WITH NEW INSTALLATIONS

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NEW INSTALLATION – SPILL CONTAINMENT GRATED DRAIN

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The recent variation granted by EPA for EPL20505 proscribed some installations and earthworks to satisfy the demands for managing surface water, control erosion and prevent sediment from exiting the premises. The following diagrams and photographs illustrate those works.

The installation of a grated drain and Drive Over Bund to separate water processing and operations plants (Contaminated Water), concrete pad truck unloading area (Dirty Water) from rain water surface flows (Clean Water) meets Condition U1.3 of EPL20507.

SAM’S WASTE JULY 2019 UPGRADE – GRATED DRAIN

NEW EROSION CONTROL & SEDIMENTATION EARTHWORK

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To meet the requirements of Conditions U1.1 & U1.2 of EPL20507, the earthworks and installations proscribed were completed. The following diagrams and photographs show those works. These works prevent sediment from exiting the site at the topographical low areas, (i.e. North and West boundaries), which is collected in a new sedimentation dam at the North West corner of the site (see Figure 7).

PHOTO SHOWING LOCATIONS OF EARTHWORKS BUNDING AND SEDIMENT DAM

DESCRIPTION OF THE SURFACE WATER MANAGEMENT SYSTEM ON SITE

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STORM WATER DIVERSION SYSTEM

MITIGATION MEASURE IN OPERATION

The following series of photographs were taken immediately after a heavy storm shower of rain on April 26 th, 2017 and document the primary pollution mitigation measure in operation.

Photo 1 shows the direction and most significant place of stormwater ingress at SLW&H;

Photo 2 shows the diversion drain structure and size next to the commercial truck weighbridge;

Photo 3 shows where stormwater is discharged onto gravel hardstand which is kept in repair;

Photo 4 shows the direction and flow path on the site to the northern corner, toward Dubbo airport.

Site stormwater ingress direction from Richardson Rd.

(Narromine Rd is immediately right of picture)

WASTE WATER RECEIVAL FACILITY STORM WATER DIVERSION DRAIN BESIDE WEIGHBRIDGE

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WASTE WATER RECEIVAL FACILITY STORM WATER DIVERSION DRAIN DISCHARGE16

(before new pollution control works)

Site groundwater flow direction toward Dubbo airport

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LOCAL TEMPERATURE & RAINFALLThe following information was gathered from the Australian Government Bureau of Meteorology, and particularly the Dubbo Airport Weather Station page, seen in Figure 2 below (Dubbo AWS Bureau of Meteorology page and data).

DUBBO LONG TERM AVERAGE TEMPERATURE & RAINFALL

Dubbo has a long term average temperature range of 33.2 C maximum for summer (January) and 3.1 C minimum for winter (July).

The average long term rainfall is 590mm per annum, and 49mm average per month.

POSSIBLE IMPACTS OF OPERATIONSPossible sources of contamination to stormwater runoff from EPA Licensed activities. In response to these hazards, the waste operations and storage activities are all bunded and roofed as specified in planning drawings accepted by Council for approval of this development.

Spill response operating procedures, including site-specific inductions for all staff and truck drivers have been implemented to minimise potential pollution. This is recorded in the SLW&H Environment Management Plan. See the Spill Response Operating Procedures in the Appendix.

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APPENDIX 1 – EPA ADVISORY LETTER – MAY 2019

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APPENDIX 2 - SPILL RESPONSE PROCEDURES

Standard Operating Procedure

SEWAGE or GREASE TRAP WASTE1. PurposeTo establish minimum expected requirements and performance of employees when responding to spills involving sewage or grease trap waste. It is intended to ensure that acceptable steps are followed to protect both the employees involved in the response, and the public from chemical and pathogenic exposure injury.

2. ScopeEMPLOYEES and OPERATORS or any other persons who may be exposed to spilled sewage or grease trap waste resulting from SLWH operations, at or for SLW&H, onsite and offsite. This procedure covers the minimum actions and requirements for responding to cleaning up and disposing of sewage or grease trap waste spill materials within a building, confined space, or outside. Improper response can result in the spread of infection, odour problems, and contamination of facilities, and injury to employees

3. PrerequisitesALL SLWH PERSONNEL are required to wear proper personal protective equipment, follow work safety rules, and have the appropriate PPE to carry out their job functions SAFELY.

4. ResponsibilitiesSLW&H MANAGEMENT and SUPERVISORS are responsible for the implementation and enforcement of this policy/procedure. SLWH employees are responsible to take emergency response action SAFELY.

5. ProcedureA. Significant sewage or grease trap waste spills on or off SLWH site shall be reported immediately to EMERGENCY SERVICES, and the SLWH MANAGEMENT and/or SUPERVISOR by telephone or 2 way radio if off site.

B. If the spill is in an area that might be definable as a confined space, the employee will first notify a supervisor to evaluate the area and prepare a confined space permit. Air monitoring, ventilation, rescue capabilities, and respiratory support systems will all be established, as needed, by the supervisor, before any further cleanup operation within a confined space.

C. Proper personal protective equipment (PPE) for employees involved in the cleanup of sewage or grease trap waste spills includes rubber boots, rubber gloves, and work clothes. A moisture proof suit is desirable. Respiratory protection will be used, if required, because of confined space, or any other circumstance that requires it.

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D. Small spills may be cleaned with absorbents and buckets. Indoor areas that have gross contamination removed should then be sanitized with full strength household bleach. The solution should have contact time with the affected areas for at least 15minutes. If the spill is outside a building, or confined space, hydrated lime should be spread over the area and mixed into the soil if in non-paved areas. Equipment used should be sanitized after gross contamination. Bleach is a good sanitizer for equipment.

E. Larger spills may require specialized equipment and these will be secured as necessary by the supervisor in charge. The supervisor will note any additional hazard such equipment may cause. Sanitizing the area after the removal of the gross contamination should proceed as described above.

F. Sewage that is recovered must be disposed of in a sewage treatment facility. It is not to be dumped on land, in storm drains, or at any other site not designed to handle sewage.

G. Workers shall follow sanitary habits in the course of working in a cleanup area, and prior to returning to their normal work duties, or leaving work for the day. Employees shall utilize PPE as described above. PPE will be sanitized, or disposed, properly after use. Employees will wash with soap and water immediately after the incident is over. Absolutely no eating, drinking, or smoking will occur in the spill area. When an employee leaves the spill area for a break, or refreshment, he will remove contaminated PPE at the boundary of the site and wash his hands prior to drinking, eating, or smoking.

6. ReferencesOSHA General Industry StandardsWHS Regulations 2011.NSW EPA - Incident response and recoveryNSW EPA - Liquid Waste Fact Sheet - Protecting the environment and your business NSW Health – health emergency preparedness and advisory on health risk

7. Definitions SPILL Any unintentional release of liquid waste to the environment whether inside a building, confined space, or outdoor area. CLEANUP Any action taken to clean an area involving a liquid waste release. This includes the initial site assessment, confined space monitoring and permitting (if required), removal of materials, disposal of contaminated materials, site sanitation, and decontamination of workers.

By signing this form you have acknowledged, read and understood the above Sam’s Liquid Waste & Hire Procedure.

Date Name Signature

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STANDARD OPERATING PROCEDURE

OIL OR OILY WASTE

SPILL RESPONSE PROCEDURE

1. PURPOSETo establish minimum expected requirements and performance of employees when responding to spills involving oil or oily waste. It is intended to ensure that acceptable steps are followed to protect both the employees involved in the response, and the public from chemical and pathogenic exposure injury.

2. SCOPEEMPLOYEES and OPERATORS or any other persons who may be exposed to spilled oil or oily waste resulting from SLWH operations, at or for SLW&H, onsite and offsite. This procedure covers the minimum actions and requirements for responding to cleaning up and disposing of oil or oily waste spill materials within a building, confined space, or outside. Improper response can result in the spread of pollution, odour problems, and contamination of facilities, and injury to employees

3. PREREQUISITESALL SLWH PERSONNEL are required to wear proper personal protective equipment, follow work safety rules, and have the appropriate PPE to carry out their job functions SAFELY.

4. RESPONSIBILITIESSLW&H MANAGEMENT and SUPERVISORS are responsible for the implementation and enforcement of this policy/procedure. SLWH employees are responsible to take emergency response action SAFELY.

5. PROCEDURESignificant oil or oily waste spills on or off SLWH site shall be reported immediately to EMERGENCY SERVICES, and the SLWH MANAGEMENT and/or SUPERVISOR by telephone or 2 way radio if off site.

If the spill is in an area that might be definable as a confined space, the employee will first notify a supervisor to evaluate the area and prepare a confined space permit. Air monitoring, ventilation, rescue capabilities, and respiratory support systems will all be established, as needed, by the supervisor, before any further cleanup operation within a confined space. Proper personal protective equipment (PPE) for employees involved in the cleanup of oil or oily waste spills includes rubber boots, rubber gloves, and work clothes. A moisture proof suit is desirable. Respiratory protection will be used, if required, because of confined space, or any other circumstance that requires it. Small spills may be cleaned with absorbents and buckets.

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Larger spills may require specialized equipment and these will be secured as necessary by the supervisor in charge. The supervisor will note any additional hazard such equipment may cause.

5.1 ASSESS THE SPILL The first step to be taken in the event of a hydrocarbon or chemical spill is to ASSESS the situation to determine the;

• Type of substance

• Location of the spill,

• Source of the spill and whether it can be isolated,

• Ability of personnel to control the spill,

• Safety and PPE requirements (refer to MSDS)

If the spill is assessed to be an emergency then it shall be declared and acted upon in accordance with the Incident Management System.

5.2 SECURE THE SPILL The spill should be SECURED. Personnel working in or near the area shall be notified of the spill occurrence. The area should be safely secured by means of posting a guard, erecting barricading or signage around the spill area to prevent personnel from accessing the area unnecessarily.

5.3 CONTROL THE SPILL The source of the spill should be isolated to prevent the spill from becoming larger. The spill should be contained by appropriate means which may include constructing an earthen bund or by surrounding the spill with the appropriate absorbent booms.

5.4 RECOVERING THE SPILL & CLEANING THE GROUNDPump the majority of the spill into alternative containers e.g. IBC, or collect the spill with a vacuum tanker.

Spills should be cleaned up by means of absorption.

General purpose and Hazardous substance spill kits are available at appropriate locations on SLWH site, and on trucks. A range of absorbent materials are supplied in the spill kits including absorbent booms, absorbent pads, granular absorbents, disposable bags and ties. Spill response training is to educate personnel on the appropriate material to use for various spills.

5.5 DISPOSAL OF THE SPILL MATERIAL The method of disposal is dependent upon the nature and extent of the spill. Advice is to be sought from the Environmental Regulations to determine the appropriate disposal method for a particular spill. Used absorbent material including granular absorbent, boom and pads shall be put into disposable bags, tied and placed in regulated waste bins. Disposal of contaminated waste must be co-ordinated and approved by the management.

5.6 REPORT THE SPILL All spills exceeding the reportable volume (20L) of a given material type must be reported.

Recovered oily waste is not to be dumped on land, in storm drains, or at any other site not designed to receive it.

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5.7 WASH THOROUGHLYWorkers shall follow sanitary habits in the course of working in a cleanup area, and prior to returning to their normal work duties, or leaving work for the day. Employees shall utilize PPE as described above. PPE will be disposed, properly after use. Absolutely no eating, drinking, or smoking will occur in the spill area. When an employee leaves the spill area for a break, or refreshment, he will remove contaminated PPE at the boundary of the site and wash his hands prior to drinking, eating, or smoking.

6. REFERENCESOSHA General Industry Standards

WHS Regulations 2011.

NSW EPA - Incident response and recovery

NSW EPA - Liquid Waste Fact Sheet - Protecting the environment and your business

NSW Health – health emergency preparedness and advisory on health risk

By signing this form you have acknowledged, read and understood the above Sam’s Liquid Waste & Hire Procedure.

Date Name Signature

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