Water Operator Certification Study Material ( New Mexico) 106 Correctly Answered Questions Latest Update

If a system adds fluoride, fluoride testing should occur? {Ans: Daily}Examples of Mineral Contaminants are {Ans: Iron ,Manganese, Carbon Dioxide ,Hydro Sulfide}What are the action levels for Lead and Copper? {Ans: 0.015 mg/l Lead 1.3 mg/l Copper}Why should you Flush sample line before sampling? {Ans: To insure the water being sampled is from the main and not the customers plumbling}Air stripping will help in removal of? {Ans: taste and odor problems}Why is fluoride an Inorganic Primary Contaminant? {Ans: Causes harder more brittle bones}Anytime the MCL is exceeded and fecal coliform positive results come back from any of the sample(s)? {Ans: It is a Non-acute violation}What is the most common type of residential meter? {Ans: POSITIVE DISPLACEMENT METERS}What are Trihalomethanes? {Ans: byprouducts of drinking water chlorination. these byprouducts form when chlorine reacts with dissolved natural organic matter, moslty plant life}What is used to locate Chlorine leaks? {Ans: Ammonia}How is a compound meter different from other meters? {Ans: they are composed of two meters///// that can read small flows and large flows}Head loss for a Rapid sand Filter should not be more then ? {Ans: 8 feet}Why is Turbidity a