All posts in VIC

IAH Victoria field trip to City West Water ASR Trial

Thanks again to all those who attended and expressed interest in the IAH Victoria field trip to the City West Water ASR Trial, special thanks to Matt Hudson for arranging the induction and presentation before the site walkover to communicate the most recent  findings from the trial.

Depending on demand and availability a second field trip may be organised in the next few months as a follow-up, but also for those that couldn’t make it along this time.

For those who were unable to attend, please find the notes below from presentation.

IAH City West Water ASR Nov 1 2017

IAH submission to Victorian CSG Inquiry

The Victorian branch of IAH Australia has made a submission to the Victorian Parliamentary Inquiry into unconventional gas. The submission can be downloaded from the IAH website.

2015 Darcy Lecture in Victoria – What Happens in the Pore, No Longer Stays in the Pore: Opportunities Limitations for Porous Media Characterisation and Process Quantification Using X-ray Tomography

Abstract:

During this presentation, you will receive an overview of the current state of imaging of porous media systems—and processes taking place within them—using x-ray tomography, a technique that allows for three-dimensional observation and measurement of variables internal to an otherwise opaque object. Gain insight on how x-ray tomography has advanced to the point where it is possible to probe porous media in great detail, allowing for fully quantitative analyses of processes and mechanisms at the pore scale. Detail resolution ranges from hundreds of microns for cm-sized samples down to hundreds of nm for micron-sized objects. Contrast depends on density and atomic number of the imaged object, and creative use of contrast agents can help delineate otherwise difficult-to-identify features. Also discussed will be technique limitations, as well as new potential advances that will allow for exciting new research in coming years. Applications of the technique to remediation of non-aqueous phase liquid in groundwater, the fundamentals of multiphase flow, and geologic sequestration of carbon dioxide will be presented.

Bio:

Dorthe Wildenschild, Ph.D., is an associate professor in the School of Chemical, Biological and Environmental Engineering at Oregon State University. Research in her group focuses on physics, chemistry, and microbiology of relevance to flow and transport in porous media. Much of her work is supported by high resolution imaging and applications primarily involve subsurface multiphase flow phenomena.

Presenter: Dorthe Wildenschild

Time/Date: 3rd March 2015, Drinks and nibbles from 5:30pm for a 6pm start

Location:  ***Please Note Venue Change***

RMIT City Campus, Melbourne,

Building 94, Level 1 Theatre 6

http://www1.rmit.edu.au/browse;ID=zxirtq0jy6wn

RSVP:  Please RSVP to heath.pawley@gmail.com for catering purposes

Victorian IAH Branch December Presentation and Christmas Function

 

Salinity in the Murray-Darling Basin: mirage or sleeping dragon?

Abstract

The salinity threat posed to land and water resources in the Murray-Darling Basin was at the forefront of water policy and management initiatives throughout much of the second half of the 20th Century.  In response to the salinity threat, monitoring and works programs have been implemented by partner governments under the Basin Salinity Management Strategy (BSMS) 2001-2015 and its predecessor (the Salinity and Drainage Strategy 1988).  These programs and the transition to a drier climatic regime, has led to a substantial reduction in land and water salinization across the southern Basin. Looking beyond the life of the BSMS 2001-2015, implementation of the Basin Plan will substantially increase the flow regime in the river compared to the recent past. Hence further water quality improvements may be anticipated in the short term. On-the-other hand, the legacy of historic land use change may be yet to reach the river and hence poses a longer term threat to River Murray water salinity. Salt will always be a feature of the Australian landscape, but is it still the threat that was posed late in the last millennium? In light of uncertainty in climate and the future management of land and water resources, where to for Basin salinity management beyond 2015?

Bio

Greg Holland has been in the salinity game for over 25 years, having worked for state government, Goulburn-Murray Water, Murray-Darling Basin Commission and most recently, SKM and Jacobs.  He will bring his insight and domain knowledge to cover the recent history of salinity management across south eastern Australia and what could be in store for the future.

Date: Tuesday December 16 2014

Time: Drinks and nibbles from 5:30pm for a 6pm start, Christmas function to follow presentation

Location: Jacobs, Level 16, 452 Flinders Street, Melbourne VIC

RSVP: Link will be in the reminder email or please email vic.branch@iah.org.au if you have not received this email

 

IAH/AIG 2014 Fieldtrip: Ballarat Area

AIG and IAH invite you to attend this year’s joint field trip to be held on Friday 28th and Saturday 29th November 2014. The trip will examine aspects of the hydrogeology, geology and mine and municipal water management in the Ballarat area. There will be a combination of all four topics on each day and an early morning tour on Saturday morning for early birds and those who stay overnight in Ballarat. The guide on the tour will be Mr Phillip Kinghorn (Independent Geological Contractor).

Proposed Itinerary

Friday 28th November

9:30 Meet bus at Ballarat Railway Station (for those who come by train)

9:50 Meet bus at Warrenheip (for those who come by car)

10:00 – 12:00 Black Hill Lookout – local geology

Norman Street Cutting (walk around)

12:00 – 13:00 Lunch (central Ballarat)

13:00 – 15:00 CGT Ballarat Gold Project Tailings dams, stormwater dissipation dams etc

15:00 – 16:00 Gnar Creek Retention Basin, Ring Road Groundwater Wellfield (urban supply).

16:30 Bus returns to Ballarat Railway Station in time for 17:15 coach service to Melbourne

17:00 Bus returns to Warrenheip

Saturday 29th November

7:00 – 9:00 Gong Reservoir (for those who stay overnight)

8:35 Meet bus at Ballarat Railway Station (for those who come by train)

8:50 Meet bus at Warrenheip (for those who come by car)

9:00 – 12:00 Imery’s Mine and Lal Lal Falls

12:00 – 13:00 Lunch (Buninyong)

13:00 – 16:00 Mt Buninyong Lookout

Redan Wetlands

16:30 Bus returns to Ballarat Railway Station in time for 17:06 train to Melbourne

17:00 Bus returns to Warrenheip

Registration

AIG/IAH member

Single Day / Both Days

$44.00 / $66.00

Non-member

Single Day / Both Days

$55.00 / $77.00

To register follow this link

An information flyer can be found aig-iah_fieldtrip-2014_flyer_01_v4

 

IAH Submission – Victoria Water Law Review

The Victorian Government is undertaking a comprehensive review of Victoria’s water laws to deliver a streamlined and effective legislative framework for water management and use in Victoria. Continue Reading →

IAH 2014 Inaugural Presentation: Hydrogeological constraints on remediation of contaminants

Jeff Paul has almost 40 years of professional experience in the field of environmental remediation. Specialising in non-aqueous phase liquids (NAPL) he has directed, performed, reviewed and optimised site closure remediation projects in over 60 countries – including a number in the Australasian region.

A certified Geologist with an honours degree in Geology from the University College Wales, Jeff is currently Principal and Practice Leader – Remediation, for Golder Associates in Atlanta.

He focuses on the assessment and cleanup of heavily environmentally impacted sites and their practical remediation.

We hope you can join us and look forward to sharing this event with you.

Yes, I will be attending No, I will not be attending

DATE: Thursday 20 February 2014

TIME
& LOCATION: 5.30pm for 6pm start
Golder Associates
Level 3, Building 7
Botanicca
Corporate Park,
570-588 Swan Street, Richmond

TRANSPORT:
Ample parking is available on Yarra Boulevard. Burnley Station is a
short 10 minutes walk to the office or Tram 70 (Swan St) from city, stop
18.

RSVP: by Monday 17 February using the
voting buttons on the right. Please include any dietary requirements.

IAH VIC – 2013 Darcy Lecture: Managing Groundwater Beneath the Agricultural Landscape

Agricultural land use represents the largest nonpoint source threat to groundwater quality on a global scale. As a result of decades of fertilizer application and surface spreading of animal manure, chronic increases in nutrient concentrations have been documented in both private and municipal well systems. The occurrence of pathogenic microbes in groundwater supply wells has also been associated with agricultural practices at the land surface. Beneficial management practices (BMPs) designed to reduce the risk of groundwater quality impacts in agricultural environments are being implemented worldwide, yet very little data are available to assess the performance of these BMPs.

The complexities associated with variable mass loading to the water table will be explored, considering regional recharge distributions. The role of the vadose zone in controlling subsurface redistribution, and as an archive of past land-use activities, will also be considered relative to the legacy of agricultural impacts on groundwater quality. The performance of a regional-scale BMP program designed to reduce nutrient loading to the subsurface in the vicinity of an impacted municipal groundwater supply system will be evaluated based on more than a decade of field monitoring evidence. The utility of a targeted in situ denitrification approach designed as a remedial strategy to temporarily augment the BMP program in the vicinity of the municipal wells will be addressed based on the results of field experiments.

Finally, the potential influence of extreme climatic variability on the mobility of nutrients and microbial species in agricultural environments will be explored relative to aquifer and well vulnerability.

About the speaker

David L. Rudolph, Ph.D.,PE, a geological engineer, is the 2013 Darcy Lecturer. He is a professor in the Department of Earth and Environmental Sciences and cross-appointed to the Department of Civil and Environmental Engineering at the University of Waterloo. He specializes and teaches in the areas of regional hydrogeology and groundwater protection and management.

Come join us

9th September 2013, 12:30 pm

GHD Long Room, Level 8, 180 Lonsdale Street, Melbourne

Guests are to meet in the foyer and will then be escorted to the Long Room.

Some light refreshments will be provided.

The use and abuse of the precautionary principle

The NSW Protection of the Environment Administration Act (PEAA) 1991, provides the following definition of the Precautionary Principle (PP): “If there are threats of serious or irreversible environmental damage, lack of full scientific certainty should not be used as a reasoning for postponing measures to prevent environmental degradation.”

The PP is routinely applied in Groundwater Management. In this context, implementation of the PP typically involves a conservative approach to large-scale management of the resource in which sustainable diversion limits (SDLs) are more likely to be underestimated than overestimated.  For example, in the Murray Darling Basin (MDB), extraction limits for confined aquifers have been based on output from models which simulate the impacts of future groundwater extraction and which have uncertainty associated with them. The sustainable extraction rate derived from the model is scaled down based on model uncertainty to provide an extraction limit that incorporates a “factor of safety”.

On a more local scale, the PP is often applied in decisions about individual groundwater licence applications to account for uncertainty in characterisation of the local hydrogeology. However, there is always some uncertainty. Thus, the decision as to whether the PP should be applied for any particular licence application is somewhat subjective.

It is important not only to manage groundwater resources both regionally and locally in a sustainable manner but in a manner that also ensures they are not unnecessarily locked up. This is recognised in the recently published Sustainable Water Strategies (SWS) in Victoria.

The NSW (PEAA) 1991 also states “In the application of the principle… decisions should be guided by: (i) careful evaluation to avoid, wherever practicable, serious or irreversible damage to the environment; and (ii) an assessment of risk-weighted consequence of various options”.

Rather than routinely applying the PP to conservatively estimate sustainable extraction limits on a whole-aquifer scale or to account for uncertainty in local licence applications, it is important to assess the consequences/risks of both underallocation and overallocation and to facilitate adaptability in management of the resource. In the MDB example above, the consequences would be quite different.

 

Speakers

Associate Professor John Webb, La Trobe University

Alan Wade, Principal Hydrogeologist, Aquade Groundwater Services

 

Come Join Us

Date: 6th August 2013

Time: 5:30pm for a 6pm start

Location: RMIT, Academic Building 80 Rm: 80-09-12 (Level 9)

(located at 445 Swanston Street, on the west side of Swanston Street)

 

No need to RSVP

 

 

McEllhiney Lecture – Keeping the Pump Primed: Aquifer Sustainability

How will your groundwater resources fare in the future and how will that affect your business? How can we ensure the sustainability of our aquifers through sound science? How should groundwater contractors and scientists confront economic and political challenges affecting the resource that is pivotal to the success of their businesses? How is “sustainability” defined and what tools and strategies can be used to protect groundwater systems as well as those who obtain and develop it? What information must be gathered and compiled to build consensus and present a compelling case to regulators and policymakers?

Currently, there are states that manage aquifers by pumping to balance groundwater recharge, which can cause stream depletion. Others limit pumping to protect surface flows, which can have negative economic impacts. Yet still others manage aquifers for controlled depletion in recognition of the severe economic disruption that would occur from either stricter goals or a lack of any planning and management. In the United States, many western states manage aquifers to protect surface water rights, while others ignore the connection between surface water and groundwater. Some eastern states seek the use of a hybrid “regulated riparian” approach to balance the free use of water with a reasonable use standard. What are the impacts of these approaches to your local groundwater industry and the reliability of water resources in the future?

Regional examples from around the United States will be presented, and an emphasis will be given to the local conditions and issues of the McEllhiney Lecture host organization.

About the speaker

John Jansen, Ph.D., PG, is a principal and senior hydrogeologist for Cardno ENTRIX and works on a wide variety of groundwater projects around the country, specializing in high-capacity wells and groundwater resource management. Formerly a partner in a Denver-based water rights company and the chief geoscientist for an international drilling company, he has broad experience in well construction and maintenance, as well as water rights issues. Jansen holds three U.S. patents on water well-related technologies and is the lead author of the chapter on borehole geophysics in the third edition of Groundwater & Wells, published in 2007.

Come join us

Date: Tuesday, 2nd July 2013

Time: 5.30pm for 6pm start

Location: RMIT, Academic Building 80Rm 80.002.007 (located at 445 Swanston St, ground floor level on west side of Swanston St, turn right when you enter the doors).

No need to RSVP