In order to prevent soil and groundwater from contamination, the local competent authority must regularly investigate and exam the quality of soil and groundwater in its own jurisd iction and deal with the peti tions.
Th erefore, Yilan Environmental Protection Bureau (EPB) has been continuously monitoring the potential sites of contaminated soil and groundwater in the region, including industrial complex in LoungTe and Letzer , as well as other underground storage tanks (UST). Additionally,the inspection, verification and control measures has been implemented over restricted contaminated area. The Yilan EPB has co mmissioned Pro.
Vision Environ m ental Engineering Corporation (the PVEEC ””) to be the chief executive o f the “20 20 Investigation and V erification of Soil and Groundwater Contamination in Yilan County” project (the “project”). All scopes of work in the proje ct has been accomplished and every assignment was flawlessly on sc hedule. Here by the final report is submitted to the EPB following its inspection over the work.
1. Soil Reguler A nalysis
This year, a total of 4 sites, where the contamination in soil exceeds the monitoring standard, were in vestigated. The result shows that the con centration of heavy metals we re found to exceed monitoring st andards in 1 site , where some of area that the lands fertilized using animal manure and groundwater full of arsenic.Other 3 sites were complied with monitoring standards.
2. Contamination Potential Area Survey
The total of 6 factories were Phase I surveyed and conducted soil and groundwater contaminatio n verification of 3 of t hese factories were sampled. The results showed that chromium concentration of Jin Cheng Company have exceeded the control standards ; TPH concentration of CPC . Corporation of Suao Provide Oil Center have exceeded the control standards.The 2 sites will be regulated by law of soil and groundwater.
3. Groundwater Analysis
Sampling work of all 3 wells has been done in May, 2020,and no results exceeded the contr ol stand ards.As for the monitoring of the landfill site, no groundwater exceed the control standards. It is common that all landfills detected ammonia nitrogen and total dissolved solids TDS )), exceeding monitoring standards.
For raw water, Wujie, Su Ao and Samxing Landfill all detected ammonia nitrogen, exceeding the discharge water standard.
4.Wells Maintenance an d Checking
The team had completed, as contracted, a total of 2 times of quarterly work of the checks and maintenance of regional and on site monit oring w ells according to the results, 5 of t hem went through the external maintenance after the assessment, and 1 of it was stop ped monitoring ; 1 of it was built In addition , for the condition assessment on 10 monitoring wells; according to the results, 5 of them went through the internal maintenance after the assessment, and 5 of them went through the well development again followed by camera shooting inside the well toassure of tidiness.
5. Restrained Sites Management and Verification
The PVEEC has completed 54 site related written reviews and also assisted in 8 review meetings.
The PVEEC has carried out the monthly inspection over restrained sites for the progress of improvement and the latest condition in hand and evaluate the predicte d effects for the site where the remediation plan has been accomplished. Currnently, there are totally 2 sites that hascompleted post improvement ver if ication, and 1 of them have been
removed from the control list.
6. UST Online review and Checking
The PVEEC has been associate with EPB to complete the UST reports of Q3 in 2019(from Sep to Dec), Q1 in 2020(from Jan to Apr)and Q2 in 2020 (from May to Aug with 100% of inspection. We also monitored gas stations of 15 UST, and Under the known condition soil and groundwa ter investigation started at Jin Mian Suao gas station s the outcome told TPH concentration of Jin Miangas station have exceeded the controlstandards ,and it will be regulated by law of soil and groundwater.
7.Soil and Groundwater Law Management and Checking
The PVEEC has completed 10 soil and groundwater legal relate dwritten review and 1 On site checking,the outcome told no sight of exceeding the control standards.
8. Emergency Response and Others
There had been 12 Lorries going through the examining work of soil rock importing management Amid the use of XRF screening, the selected samples were analyzed for heavy metal content and the results indicated all sample standards compliant.
9. Event Hand ling and Routine Business
This year,there have been completed 2 open conferences for interpreting relevant Acts of prevention of soil and groundwater contamination (total audience number: 176 ), 10 educational sessions and 1 training courses(total audience n umber: 533 )). The team has also assisted the environmental education activities Contains drawing contest on 2020/04 2020/08 all works number: 2600 Taiwanese drama of Soil and groundwater story and EPA . exhibition on 20 20 / 21-26 (total) audience number: about 5000.
For the evaluation of performance indicators, the team has assisted the EPB in proposing key points and measures of the 2020 evaluation for program management, contaminated site management and administrative works, highlighting the determination of the EPB in contamination verification and remediation and showing the effectiveness of soil and
underground water implementation.
