EPA-106-EA13-02-A149

106

2,420 千元

辦理環境教育計畫與環境講習

2017/03/10

2017/12/31

林鎮洋

水保處

簡吟純

國立臺北科技大學

水質保護

河川水質模式、環境影響評估、技術規範

Water Quality Model, Environmental Impact Assessment, Technical guideline

陳起鳳；康世芳

李祖川

02-27712171#2629

tsuchuan@ntut.edu.tw

本計畫目的在支援環保署審查環境影響評估河川水質模式，主要工作項目包括（1）支援環保署審查開發行為環境影響評估個案之河川水質模式模擬結果；（2）蒐集環境影響評估河川水質評估模式技術所須輸入及參數資料；（3）應用河川水質模式模擬重金屬及研擬削減策略及（4）辦理諮詢及技術交流會議。計畫執行期間已經支援環保署審查個案共22件，其中使用質量平衡公式有10件、WASP水質模式1件及11件其他。本年度環評案件追蹤審查案件已有8案件，建置頭前溪（採用HSPF/BASINS）、大漢溪（採用QUAL2K）及烏溪（採用WASP）水質模式模3件既有環評案例參數資料，並蒐集1件新環評案件，以WASP應用在濁水溪，背景輸入及參數資料。本計畫蒐集河川重金屬及底泥重金屬資料，並以WASP水質模式模擬及分析老街溪重金屬，研擬老街溪重金屬削減策略。後續建議應持續辦理支援環保署審查河川水質模式模擬結果、持續追蹤審查案件、納入河川水質模擬評估於範疇界定會議項目、辦理經驗交流會、河川水質模式輸入與集水區特性應持續收集及整合，以提供水質模擬所需之背景資料，降低評估單位資料蒐集負荷及增進環評案件評估效益。

河川水質模式、環境影響評估、技術規範

EPA-106-EA13-02-A149_20171221.pdf

8MB

報告書

2018/2/1 上午 12:00:00

The purpose of this study is to assist Taiwan Environmantal Protection Administration (EPA) in reviewing the environmental impact assessment (EIA) reports regarding the water quality modeling. Four main tasks are conducted to provide technological support in examining the results of water quality modeling which was used in the assessment of surface water quality. The tasks include: (a) reviewing at least 20 EIA reports, (b) summarizing the results of modeling application of the four models (HSPF/BASINS, SWMM, WASP, and QUAL2K) which were applied in the EIA cases, (c) developing a heavy metal TMDL, and (d) hosting workshops to discuss the water quality models. Twenty two EIA cases were evaluated during this study. One of the EIA cases were assessed by the WASP, ten by the simple dilution model, but eleven were not assessed by any models. Eight EIA cases were followed up, and comments on the EIA cases were provided during the scoping meeting. The WASP was applied to develop a heavy metal TMDL. The results showed that the Copper (Cu) has to be reduced to meet the critical water quality under Q75 low flow condition. The scenarios of the 30% and 50 % Cu loading reductions were presented for the Cu TMDL developments in Laochie Creek. Besides, the parameters of the water quality models are summarized for future application. During this study, the parameters of the three models were collected based on the EIA cases. For the HSPF/BASINS, the parameters of Toucian Creek were collected. For the QUAL2K, Dahan Creek was collected. For the WASP, Wu Creek was collected. Finally, several suggestions for further investigation are provided. This study recommends that government agencies should work with institute to revise the modeling guidelines or model implementation for applications in EIA cases. Moreover, the co-working institute can play a critical role in archiving models and data, maintaining and upgrading them for future applications. The modeling workshops should take place frequently to emphasize on modeler education. Guidelines for model assessment should be further developed.

Water Quality Model, Environmental Impact Assessment, Technical guideline