N'ime usoro ọgwụgwọ mmiri na-ekpo ọkụ na-ekpo ọkụ na-arụ ọrụ na-edozi mmiri dị arọ nke Western Metallurgical Plant, a na-eji pH mita anyị, electromagnetic flowmeter, ultrasonic level gauge na ngwá ọrụ ndị ọzọ. Mgbe nzaghachi nyocha nke onye ọrụ na saịtị: A na-eji ngwá ọrụ anyị nke ọma, na-enyere ụlọ ọrụ ahụ aka dochie ngwa ngwa ndị dị otú ahụ ebubata, na-azọpụta ọtụtụ ụgwọ ọrụ.
