Qldc-Consent-Application-Appendix-E.Pdf
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| Queenstown Lakes District Council Wastewater Network Consent| Appendix E - Engagement and Consultation Assessment of Environmental Effects | 4395824 | NZ1-16079985-43 1.5 | 5 April 2019 version 4 | 44 To: All Media From: QLDC Communications Date: Monday, 29 October 2018 Subject: Community drop-in sessions to discuss wastewater network overflows Drop-in sessions will be held in Wanaka and Queenstown in early November to educate the community about our wastewater networks and the overflows that occasionally occur into the environment. QLDC General Manager Property and Infrastructure Peter Hansby said a key purpose of these drop-in sessions is to talk to the community about what causes overflows, how we respond to them, and our commitment to protecting public health and the environment. “We want to raise awareness about how everyone can play a big part in reducing the likelihood of overflows occurring. The network is essential in protecting our community from unnecessary exposure to wastewater but occasionally overflows into the environment occur due to blockages and breaks,” said Mr Hansby. “These are usually avoidable and often caused by things like fats, sanitary items, wet wipes, and building materials incorrectly being put into the system, or from tree roots growing near pipes,” he said. As part of QLDC’s 2018-2028 Ten Year Plan, a number of improvements to the wastewater network are planned to reduce the likelihood of overflows occurring, and further protecting key recreational areas from contamination. “QLDC is currently preparing a resource consent application to the Otago Regional Council for those occasions when overflows do occur. We have good practices in place to respond to an overflow, but this process gives us the opportunity to review those practices and make sure that we are responding in the best way to protect public health and the environment,” said Mr Hansby. In parallel to the drop-in sessions, QLDC is also working with local businesses to ensure wastewater best practice. This includes a review of the existing Trade Waste Bylaw. The drop-in sessions will be held on the following dates: • Queenstown/Arthurs Point/Frankton/Lake Hayes/Arrowtown session: Thursday 8 November from 6:00pm-7:30pm at the Queenstown Event Centre. • Wanaka/Albert Town/Hawea/Luggate session: Monday 12 November from 6:00pm-7.30pm at the Lake Wanaka Centre. ENDS. For more information please contact QLDC Communications via [email protected] or call 03 441 1802. OUR WASTEWATER NETWORK Wastewater networks protect communities from unnecessary exposure to wastewater. Exposure can affect our health and wellbeing. Wastewater is toilet wastes and This network uses a combination of Across our district we have approximately household grey water from kitchens, gravity and pumped systems to carry 420km of wastewater pipes and 65 pump bathrooms and laundries; and trade the wastewater to the treatment plants. stations that cover the following locations: wastes, which are liquid waste from Our landscape means that typically the > Queenstown including Sunshine Bay commercial and industrial businesses. wastewater which flows under gravity, and Fernhill does so in the direction of our lakes and Wastewater pipes transport wastewater rivers (as these are low points in our > Arthurs Point away from households and businesses to district). Pump stations located at these > Frankton Road between Queenstown wastewater treatment plants. natural low points lift the wastewater and Frankton to higher levels, to continue its journey > Frankton under the power of gravity to the > Lower Shotover including Quail Rise treatment plant. > Shotover Country, Lake Hayes Estate, and Lake Hayes area > Arrowtown > Wanaka > Albert Town PUMP STATION > Luggate TREATMENT PLANT > Lake Hawea > Cardrona LOOKING AFTER OUR PIPES WE ALL HAVE A PART TO PLAY. Take a moment to check before you put something down your 1 sink or toilet. Is it safe? If you are unsure, please dispose of it responsibly. We’ve provided some tips below: 3 7 2 5 GULLY PROPERTY MANHOLE STORMWATER 4 6 TRAP BOUNDARY 8 DRAIN PRIVATE WASTEWATER PIPES 4 PRIVATE STORMWATER PIPES QLDC WASTEWATER PIPE QLDC STORMWATER PIPE 1 STORMWATER DOWNPIPE 5 KITCHEN SINK HAZARDOUS WASTE & DRAIN Scrape cooking fat into the bin. Fat Do not pour hazardous waste such as Where possible, ensure your can harden when it cools and may paint, pesticides, solvents and used property has separate stormwater block pipes. Coffee grounds should automobile oil down any drain, toilet or and wastewater pipes. When also go in your bin, compost pile, or sink. To find out how to dispose of stormwater enters the wastewater on your garden. hazardous waste, visit www.qldc.govt.nz network, it can cause overflows. and search ‘hazardous waste’. Check that the stormwater drains 6 GULLY TRAP on your property connect to the Ensure your gully trap is raised off SEPTIC TANKS stormwater network. If any drains the ground to prevent rainwater from If you have a septic tank, ensure it is smell or look like they have sewage entering the wastewater network. regularly maintained and checked by a in them, there may be a problem. Raised gully traps also protect your professional. Septic tanks need a pump- family’s health by ensuring that out service every three to five years to 2 RAINWATER OR wastewater will not overflow into remove scum and sludge build-up. RETENTION TANKS your home if there is a blockage. Tanks can collect water from hard surfaces and store it for many uses: PLAN YOUR TREE PLANTING 7 If you need help checking your > watering your garden Before planting a tree, check that private property drains, pipes, > washing your car it’s not going to grow over your and connections, contact > supplying your washing machine pipes or ours. the Plumbers, Gasfitters and and toilet. Drainlayers Board: visit 8 MANHOLES pgdb.co.nz to find out more. 3 TOILET Give us a call. Flush toilet paper and human If you come across any wastewater waste only. overflow from a manhole, or you come across a missing, dislodged or damaged manhole cover, PRIVATE PIPES 4 contact us urgently on Ensure your private stormwater and 03 441 0499 (Queenstown) or wastewater pipes are connected 03 443 0024 (Wanaka). properly and maintained. PIPES UNDER PRESSURE Wastewater flows easily through the pipes when only human waste and toilet paper is flushed, and when only soapy water is put down our pipes. Do your part to help reduce wastewater overflows in our district. SO WHAT HAPPENS WHEN WHAT SHOULDN’T YOU PUT WHAT ELSE CONTRIBUTES TO OUR WASTEWATER DOESN’T DOWN YOUR SINKS, TOILETS, BLOCKAGES AND BREAKS? FLOW EASILY? SHOWERS AND OUTSIDE DRAINS? Fat from cafes and restaurants poured When blockages and breaks occur, the Anything that is not water, human down our wastewater pipes causes flow of wastewater is restricted. This waste, toilet paper, or soaps. This blockages. QLDC is working with can result in a build-up of pressure in includes no food and fats, sanitary businesses on ways to better manage the our pipes and can cause wastewater to items and wet wipes, or washing way that fat and other trade wastes are back up. Sometimes this wastewater building materials down your drains. disposed of to reduce the likelihood of back up results in an overflow into our These items cause blockages blockages occurring. environment, typically out of manholes or and breaks in our pipes meaning at our pump stations. wastewater can’t flow freely. Breaks in our wastewater pipes are also caused by tree roots. Before planting If these overflows can’t happen at a large tree varieties, you can ask QLDC for pump station or from a manhole there is a Water information about the location of pipes to risk that wastewater will release back up help to avoid this. through our toilets, showers and sinks. This exposure to wastewater could affect Human waste Building materials during construction our health and wellbeing. washed into our drains is another contributor Toilet paper to breaks and blockages in our pipes. DID YOU KNOW Occasionally our district experiences Soaps wet weather storm events that result in extra water getting into our underground Food wastewater pipes. This can also happen if Washing your lake levels rise and result in flooding. These wet weather events can make it more difficult coffee grounds Fats for wastewater to flow through the pipes, down your sink resulting in a build-up of pressure and the potential for our wastewater to back up. contributes to the Sanitary items blockages in our Wet wipes wastewater pipes? Building materials HOW WE RESPOND TO OVERFLOWS How does QLDC know an What is QLDC doing to reduce overflow has happened? wastewater overflows? Our main pump stations located near our lake foreshores are The 2018-2028 Ten Year Plan adopted by QLDC this year alarmed so we receive early warning of any issues with the flow includes funding for a number of improvements to our of wastewater. We can then undertake preventative measures wastewater system. These improvements include upgrades to to reduce the likelihood of an overflow occurring. In their day to our pump stations, pipes and wastewater treatment plants. day work our operations and maintenance teams also look out for overflows. We also undertake preventative maintenance by checking our pump stations and pipes regularly to identify any cracks or We also receive phone calls through our call centre from areas where blockages are starting to form. We then fix these members of the community who alert us that an overflow has before a problem occurs. occurred. Our call centre is open 24 hours a day 7 days a week. How does QLDC know an overflow has happened? As soon as we know a wastewater overflow has occurred we: AIM TO REACH THE LOCATION IDENTIFY THE CAUSE OF THE WITHIN ONE HOUR.