WET News

Techknow • CIP2 has been divided into three main study areas: • Investigations into the occurrence of a wide range of substances at 128 WwTWs final effluent discharges, to confirm any possible risks or failures to compliance, and overall contributions of the discharge into the environment. Monitoring will take place over an 18 month monitoring period at the final effluent discharge points, and associated upstream and downstream river locations; a total of nearly 10,000 samples. • Feasibility studies into the removal of substances from both full scale and pilot plant trials of promising and innovative technology, incorporating specific investigations into phosphorous removal. This will involve the collection of 150 samples over a year-long study period. • A further 400 samples are to be collected as part of a Catchment Study programme looking at the occurrence and source of the chemicals on a catchment wide scale. • The nature and complexity of the programme has required bespoke operating procedures including: • The CIP2 field technicians are trained on the strict sampling procedures to avoid sample contamination, such as the avoidance of fragrances and perfumes. • Sample integrity is maintained throughout the sampling and analysis process • Samples are constantly refrigerated from collection. • The range of testing involved in CIP2 requires a wide variety of extraction and analysis techniques such as liquid chromatography tandem mass spectrometry (LC-MS/MS) • Enicip is a dynamic piece of bespoke software which was developed by enitial over a period of six months, specifically for CIP2. The database stores, records and analyses all of the information pertaining to each and every sample including; GPS, photographs, sampling and analysis requirements, H&S, chain of custody, results and KPI reporting. enitial will collect almost 11,000 samples from 130 Severn Trent Water sites over the five-year period, which ends March 2020 Sampling and monitoring has become more complex as the list of compounds to be monitored has grown Hand-held tablets are used in the field to upload the sample barcode, photographs and CPS coordinates to the Enicip database Technicians ensure sample integrity is maintained throughout the process DECEMbEr 2015 weT newS 13 dynamic piece of soware, any site specific H&S or sampling information is recorded and the most up-to-date information is easily transferred to any other technicians or personnel. All staff involved in Severn Trent Water CIP2 have full access to Enicip, which allows for full traceability, transparency and analysis of the data. In addition to the stringent sampling protocols in place, enitial has ensured that sample integrity is maintained through-out the process. enitial has added refrigerated vehicles to its operations to ensure sample fidelity during transportation. Samples are taken by enitial to its Wolverhampton head-quarters where they are stored and refrigerated until collection the same night. This enables i2 Analytical and the NLS to receive the samples by 6am the following morning, ensuring sample integrity is maintained at its highest level and the laboratory can start analysis promptly. enitial manage both their own internal QAQC procedures as well as those of the contracted labs, which include a thorough data check prior to the release of the data to the wider CIP group. The CIP2 results will confirm and characterise the perceived environmental quality stan- dards (EQS) compliance risk at each of the works. This will form the basis of future improvement programmes, and provide information with which the UK can respond to future EQS proposals. enitial's involvement with CIP2 has provided it with a broad depth of expertise, which will enable it to effectively provide both sampling and data management services for the monitoring of substance levels in various environments. Ivor Parry, business development director at enitial, says: "Meeting all the challenges set by CIP2 in terms of logistics is certainly no small feat. We worked hard to develop a piece of soware in Enicip that would simplify the process of monitoring for Severn Trent Water, as well as the labs at i2 Analytical and the NLS. The traceability of the samples we take and the efficient analysis and reporting that Enicip enables has made it easier to meet CIP2's stringent requirements for all parties involved." The VeRDIcT • The carbon footprint of the works was reduced because of the trenchless technology • The innovative use of the combined jacking and pipe bursting systems brought success to a very challenging situation MoanS & GRoanS • The first phase of the CIP programme in 2010-2013 made it possible to identify substances that required further attention or investigation. The determinands in CIP2, although similar to those in CIP1, are more challenging in terms of their required reporting limits and cover a broader range of substances • The required reporting limits of CIP2 demanded that new analytical techniques were developed

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