Agreement No. CE/59/2015 (EP)
Environmental Team for Tseung Kwan O - Lam Tin Tunnel - Design and Construction
Summary of Groundwater Quality Monitoring Results in August 2019
Date Location Parameters (unit)
pH Dissolved Oxygen (mg/L) Turbidity (NTU) SS (mg/L) BOD5 (mg O2/L) TOC (mg-TOC/L) Total Nitrogen (mg/L) NH3-N (mg NH3-N/L) Total Phosphorus (mg-P/L)
14 Aug 2019 Stream 1 8.5 7.9 1.7 3.7 <2 2 0.6 0.02 0.02
Stream 2 8.0 7.7 1.2 <1.0 <2 2 0.5 0.04 0.02  
Stream 3 8.1 7.8 1.2 <1.0 <2 2 0.5 0.02 0.02  
22 Aug 2019 Stream 1 8.2 7.9 1.8 <1.0 <2 3 0.6 0.02 0.03  
Stream 2 8.1 8.0 0.9 <1.0 <2 3 0.6 0.03 0.03  
Stream 3 8.1 7.9 0.5 <1.0 <2 3 0.6 0.03 0.03