Get out Obj 9 10 for a stamp

Get out Obj #9 &10 for a stamp Review for today’s quiz Obj #1 -10 Pass back the permission slip!

Where does your water come from?

Houston Water sources: Lake Livingston Lake Conroe Lake Houston Evangeline aquifer (806 MGD) (60 MGD) (150 MGD)

1. Screening 2. Coagulation alum 3. Sedimentation 4. Filtration 5. disinfection: chlorine UV rays ozone

Check out the 2012 water report Identify: Five radioactive particles. One fat soluble herbicide One heavy metal which causes brain damage Three organic chemicals that probably come from petroleum refineries How many of these contaminants were higher than the Maximum Containment Level? (MCL)

C ons eque nce s o f us o ur g ing ro un d wa ter Overd w ate r aft – tak r OU i ng m T of a ore than n aq is rec uifer the a harg quife i ng IN r to (Wha t w ou your ld ha bank ppen di d t h acco is? ) unt i f to you

mass in an a qu ife r Wa te r ha s

Sub s id en ce – sinki l and ng o d ue t f o aq ui fe r ove r d ra ft

Ba yt o Bro w wn – nw o od su bd ivisi o n

Brow n woo d 19 5 3

Bro w nwo o d 19 78

Bayt o wn N a ture Ce nt e r to d ay

Saltwater intrusion

Hous t ton is j ust s urf ac switchi ng e wa prot e ct th ter t o e city fur th er su from bsi de nce. Over draft leads subs idenc to e

Che c un de k fo r rsta n d ing What wa te i s the r r tre a o le o tmen f alum What t? in syst mate ri em m al s is Why i ade out the filtra of ? tio n drink s chlor i Why ing watern? e added to o ur drink is f luo ri d How ing water? e added to o ur over are sub draft sid en r ela t Why ce an e d? d d drink oes i t down ing w atema tt er th at ou r sup s tr ea r p m of Da llali es are s?