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Meeting the Requirements of The Environment Act 2021

New legislation in the UK has led to the proposed mass deployment of water quality monitoring points in rivers upstream and downstream of Combined Sewer Overflows (CSOs) and at the outfall of wastewater treatment works across the entire country. The Environment Act 2021 (EA21) will impact the industry in several ways. Here we seek to outline the scale and requirements of EA21, its impact on the UK water sector and how Badger Meter can help meet the requirements.

The Insider Blog / 4 min read

River Pollution and EA21 Compliance

The UK water industry is starting to mobilize resources toward meeting the requirements of EA21, monitoring river water quality and identifying potential point sources of pollution to ensure the health of UK rivers for current and future generations.

EA21 sets out ambitious targets for the protection of rivers, estuaries and coastal zones in the United Kingdom. Part 5 Section 82 requires water utilities to continuously monitor water quality upstream and downstream of all storm overflow and sewage disposal works that discharge into a water course.

Regulations call for the monitoring of five key water quality parameters; pH, dissolved oxygen(DO), ammonia, turbidity and temperature. In addition, the legislation states that additional parameters may be added to the list, including organic pollution measures (COD and/or BOD) and potentially nutrients such as nitrate or even surrogate bacteriological parameters where these can provide additional context.

With more than 20,000 CSOs and over 7,000 sewage treatment works in England & Wales, the legislation creates a significant challenge to the industry in terms of installation, monitoring and continuous maintenance. However, with the right solution, this challenge can be managed—while setting utilities up for success as new measurement parameters are added in the coming years.

By choosing a flexible and modular approach to sensor deployment you can ensure your solution suits the application, no matter the parameters required. Badger Meter, with integrated s::can sensor technology, has demonstrated a successful track record in this demanding application for over 25 years across the globe.

Customer Success Stories

Ganges River, India

Atoyac River, Mexico

Indonesia

Danube River

New Zealand

Ganges River, India

Monitoring the Quality of Water in the Ganges River

A total of 10 standalone, unmanned remote water quality monitoring stations were deployed in a network across India's Ganges River. This results in a better understanding of the contamination of the river by local industry and protects public health for the millions of pilgrims that bathe in the waters each year.

Monitoring the Quality of Water in the Ganges River, India

Atoyac River, Mexico

Monitoring One of the Most Polluted Rivers in the World, the Atoyac River in Mexico

Mexico's Atoyac River is one of the most polluted rivers in the world. In order to protect the river and to clean up pollution, the government has embarked upon a river monitoring project using s::can sensors in December 2017. A total of 12 monitoring systems in 9 stations were installed to measure water quality trends and to investigate the origin of industrial pollution. Today, 20 parameters are being measured in the Atoyac with this equipment.

River Water Quality Monitoring in the Atoyac River, Mexico

Indonesia

Early Warning River Monitoring in Indonesia

91 stations with s::can products were implemented all around the country by our partner PT Has Environmental, to monitor the water quality, provide information and to strengthen the early warning system for the community.

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Danube River

Danube River Monitoring: From Berlin to the Black Sea

Researcher Carsten Riechelmann traveled on his selfmade catamaran through Europe, which he equipped with an s::can system to georeference the measured data. Longitudinal continuous profiles of all parameters were registered and displayed in real-time on online maps.

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New Zealand

Catchment Water Monitoring in New Zealand

Mercury, one of New Zealand’s energy utilities, installed a s::can real-time water monitoring solution in South Waikato. What differentiates this project from others, is that this installation is for the public good—it has the potential to help transform environmental management decisions, by putting real-time information on water quality in front of all stakeholders including the local community, businesses, and the general public.

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Direct Insertion Suitcase

For applications where the sensors are to be deployed directly into the river, Badger Meter offers a suitcase solution incorporating the con::line RTU. To comply with the requirements of EA21, Badger Meter utilises a modular sensor approach consisting of the i::scan (turbidity), oxi::lyser (dissolved oxygen) and the ammo::lyser sonde (ammonium, pH and temperature). The solution is customisable and additional sensors can be added to measure parameters such as BOD, COD and nitrate to provide greater insight into river health.

As described, the system can be powered for a long-time utilising battery, solar and wind power, making it ideal for remote application. For sites where mains power is available, an alternative approach is to use the con::cube controller featuring advanced data validation software. Both solutions are suitable for data transfer to your preferred server/platform, or where required, Badger Meter can offer a complete turnkey package including data visualisation.

Photo caption: Suitcase solution consisting of direct insertion sensors into the river, with con::line RTU for data transmission and setup using s::can io::tool software.

Pumped Sample Kiosk

Designed to meet the requirements of EA21, the Pumped Sample Kiosk Solution features the same sensors and sondes as the Direct Insertion Suitcase Solution, in a fixed above-ground kiosk. Using the modular approach, the parameter set can be customisable, as well as the means for getting the data back to your preferred platform.

Whether the Direct Insertion Suitcase or Pumped Sample Kiosk, Badger Meter provides a full end-to-end solution to meet EA21 requirements. Or, if preferred, we can work with Utilities’ existing preferred RTU or platform provider to get the river water quality data into your hands.

Photo caption: Pumped sample kiosk solution including s::can ammo::lyser, i::scan and oxi::lyser.

The Sensors

Depending upon the site’s needs, we offer the following sensors as part of both the Direct Insertion Suitcase Solution and the Pumped Sample Kiosk Solution. Together, the i::scan, ammo::lyser and oxi::lyser meet the needs of EA21. The spectro::lyser is a recommended add-on to measure other parameters at critical sites.

i::scan

A compact, lower power optical sensor with the ability to measure multiple organics (COD, BOD, DOC, TOC) as well as turbidity.

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ammo::lyser

A flexible, multi-parameter ion selective electrode (ISE) platform utilising best in class electrodes for minimal maintenance. Includes ammonium ISEs with integrated pH and temperature measurements for compensation or conversion of results into ammonia. The ammo::lyser uses proprietary non-porous reference electrodes which minimise drift, even in low conductivity samples and make them ideal for long term deployment without frequent intervention for recalibration.

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oxi::lyser

A solid state, optical dissolved oxygen (DO) sensor with no consumables and minimal maintenance required. This proven technology is utilised in wastewater treatment processes across the globe.

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spectro::lyser

A fully submersible spectrophotometer with the ability to measure multiple parameters simultaneously such as COD, BOD, DOC, TOC, Nitrate, hydrocarbons (as BTEX), chlorophyll A and turbidity. Featuring advanced dual beam optical technology and advanced algorithms utilizing the full UV-Vis spectrum, the spectro::lyser has been deployed in surface water pollution monitoring projects around the world for 25 years.

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Telemetry & Visualization Aspects

Many water companies are concerned with data security and are insistent that critical data be stored and transmitted via pre-approved supply chain framework providers with water industry-accredited data gateways and platforms. A Badger Meter solution can operate within an agnostic protocol, plugging directly into the water companies preferred RTU. Alternatively, we can offer an end-to-end solution including visualization to match your needs and meet data security requirements.

Final Thoughts

Badger Meter has over 25 years of direct experience managing large, sole-source water quality frameworks including asset replacement and upgrade schemes throughout the UK. We have wide ranging experience working across clean, waste and remote monitoring instrumentation and provide practical and urgent support from our purpose-built workshop facilities in Manchester.

With a dedicated team of industry-trained service engineers, you can be completely confident that your system will not only be installed to the highest standard, but that vital support and maintenance comes from a trusted team, ensuring your investment meets your expectations.

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