CEU Challenge

Members of the Florida Water and Pollution Control Operators Association (FWPCOA) may earn continuing education units through the CEU Challenge! Answer the questions published on this page, based on the technical articles in this month’s issue. Circle the letter of each correct answer. There is only one correct answer to each question! Answer 80 percent of the questions on any article correctly to earn 0.1 CEU for your license. Retests are available.

This month’s editorial theme is Water Supply and Alternative Sources. Look above each set of questions to see if it is for water operators (DW), distribution system operators (DS), or wastewater operators (WW). Mail the completed page (or a photocopy) to: Florida Environmental Professionals Training, P.O. Box 33119, Palm Beach Gardens, Fla. 334203119. Enclose $15 for each set of questions you choose to answer (make checks payable to FWPCOA). You MUST be an FWPCOA member before you can submit your answers!

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Article 1 ____________________________________

LICENSE NUMBER for Which CEUs Should Be Awarded

Article 2 ____________________________________

LICENSE NUMBER for Which CEUs Should Be Awarded

If paying by credit card, fax to (561) 625-4858 providing the following information:

EARN CEUS BY ANSWERING QUESTIONS FROM PREVIOUS JOURNAL ISSUES!

Contact FWPCOA at membership@fwpcoa.org or at 561-840-0340. Articles from past issues can be viewed on the Journal website, www.fwrj.com.

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Challenges and Solutions to Developing Alternative Water Supplies in Central Florida: Polk Regional Water Cooperative Experiences

Robert Maliva, Scott Manahan, Mary Thomas, Stephen James, and Ryan Taylor (Article 1: CEU = 0.1 DW/DS02015396)

1. Dissolved solids in central Florida Lower Floridan aquifer groundwater were mainly derived from the dissolution of a. calcium sulfate. b. sodium chloride. c. calcium chloride. d. sodium sulfate.

2. Concentrate disposal in southeastern and southwestern Florida is performed predominantly by a. Class I injection wells. b. Class V injection wells. c. reuse. d. surface water discharge.

3. Geochemical modeling results indicate that a supersaturation of concentrate_______________ would result in injection well clogging. a. chloride b. magnesium c. gypsum d. iron

4. The primary source of fresh drinking water in central Florida is a. the Lower Floridan aquifer. b. the Upper Floridan aquifer. c. the Avon Park formation. d. the Upper Cretaceous zone.

5. For Class V aquifer surface water injection wells required to meet Florida drinking water standards at the well head, the main parameter(s) of concern are a. chloride. b. arsenic c. coliform bacteria and other pathogens. d. total organic carbon.

Addressing a 10-µg/L Lead Trigger Level for a Blended Water Supply by Evaluating Alternative Corrosion Control Inhibitors

Paula Campesino and Stephen J. Duranceau (Article 2: CEU = 0.1 DW/DS02015397)

1. The 1991 Lead and Copper Rule establishes a lead concentration action level of _____ mg/l. a. 0.010 b. 0.015 c. 1.3 d. 1.5

2. Along with corrosion rates, ______________can be used to measure the pitting index. a. gravimetric methods b. electrochemical noise methods c. the Larson-Skold ratio d. linear polarization resistance

3. The study concludes that the proposed future treatment of Verna water will cause corrosivity to a. worsen. b. improve. c. remain unchanged. d. change, but unpredictably.

4. It has been shown that a chloride-to-sulfate mass ratio of ______ may reduce corrosivity and pitting. a. 1 b. greater than 1 c. 7 d. less than 0.6

5. The study results show that a blended polyphosphate product may a. increase lead and copper corrosion. b. decrease lead, but increase copper corrosion. c. increase corrosion of mild steel and ductile iron. d. have no impact at all on any metals.