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Odin's Speech at 24 months old

Odin will be turning two years old in 17 days and I'm concerned that his speech is not progressing as it should be. He doesn't say any sentences except ones that were learned together as a phrase like "thank you" and "I love you"- He cannot copy after me when I say something, and if he manages to say a word, I might not hear it again. Its like he forgets. He also adds an "L" into his words all the time. The only question he asks is "Whatsthat" and it sounds like "wahdah" run together, no inflection at all. He doesn't actually converse at all, it's mostly just yelling at his sisters or saying random things from his favorite thing "Go Diego Go", For instance, if I ask him his name he'll say "Diego!" He has no response to asking him to make animal sounds. He can point them out if I ask him, "Show me the cow" but he doesn't imitate me saying them or tell me what they sound like. (with the exception of Llama. He does say that because he sees that one on Diego of course.)
Some examples of his speech are:

nay nup= thank you
nut= donut
ee= please
dago=diego
duh duh= anything else he doesn't know
et ee= empty
g low= playdough
et cho clats= santa clause
pone= phone
oooh= buddah
pen= money
mummy=money
klee= keys
glaa=soda
tloy=toy
no= snow
deritis= there it is
glacksin= michel jackson
ee=wee
nup= yup

woo=whale weeble=whale
ooh un=all done
ee all=snail
da=ducks
ah dun=my turn

dladdy=daddy
wee=swing

wee wee, mee mee, and winwe= windy

chloclate=chocolate (I'm actually impressed by that one)

up= help and cup

er= hair

jeb-brar= jaguar (from diego)

dop=stop

you=ewww

kliss=kiss (again an L)

jay tul= gentle

el come= welcome

tres=three in spanish 

quatro=four in spanish

poor=four

Pie po, pee po=Piper

Eye ee=Ivy

Eh a rah=Sierra

Geh=give

Do=two

Be=three

klee-dlup=clean up

et=hat

nee nah=banana

uh me=look at me

yo-k=are you okay

ah dun= my turn

If he doesn't know what something is, he responds with either something else, like exclaiming "Day go!" (diego) or by saying "Doh Doh" or making a hissing sound.
He does say some words correctly. Ball, Mama, baby, Daddy (sometimes… other times daddy is said with that "L" as in DLaddy"
He does get upset when we don't understand him, but it does no good because he simply repeats the word over and over again. If we ask him if he wants milk, he's just scream and keep saying "eeuck eeuck" which is what milk is I guess.
He says "yes" and "no" and they sound so much the same that I'm never sure. Most of the time unless its something about his tv show, I have no idea what he's saying until we go through the list of things he could want.
Am I right to be a little concerned? He is my first boy and I have 4 other girls that talked in sentences by now.Are these errors that are normal for a 2 year old?

I was reading about Apraxia and wondering if it fits that description. So instead of sitting here looking things up I decided to call CDS and set up an evaluation.