TY - BOOK AU - Hari Singh Sidhu TI - Report on the groundwater investigation at rock chemical industries Pengkalan Pegoh, Ipoh PY - 1986/// KW - Groundwater KW - Perak KW - Pengkalan Pegoh KW - Geology KW - Pengkalan Pegoh (Ipoh, Perak) N1 - October, 1986 N2 - Monitoring of the groundwater levels on a regular basis is considered necessary. Periodic chemical analysis of water is also recommended. This if done diligently can give forewarning of declining performance of the well and of other problems associated with wage of groundwater especially in limestone terrains ER -