I think this is American Pondweed. It has redish leaves but assume that is because of coming out of a hard winter.

Texas A&M American Pondweed

This is in a small creek that runs behind both ponds. Is this something that would be ok in a pond or keep it out? Would it be suitable to transplant some of this in the shallow area of my old refurbished pond? Or just wait and see what shows up and manage then?

My guess is Curly Leaf pondweed - not American pondweed, due to the more slender and curly appearance of the leaves. Also, American pondweed leaves will lay down on the water like a Lilly-pad more than grow up and out of the water like the leaves in your photo.

I prefer American pondweed over Curly leaf as it's less dense - not sure if CLP can become a management issue - but experts can help guide here.

I don't think it's CLP either. Not curly enough. Can you take a single strand, place it against a light background and take a picture? I think I know what it is, let me look at TAMU and throw up a link here.

snrub:

Google Potamogeton amplifolius and see how close the description and pictures are to what you are seeing. Pat attention to the description where they say that there are two types of leaves.

Kelly Duffie should see these pictures which may not be good enough for a positive ID. More pics may be needed. I don't think it is P.amplifolius because it does not grow with leaves out of the surface like that unless the water has been drawn down. Plus the leaves do not look wide enough for P.amplifolius.

Where has that boy been hiding? There's a couple ID's that could use his help!

The big-leaved pondweed has big leaves. Leaves on this is about the size of my thumb.

I'll try to pull some of it up and get some better pictures along with something for size reference. I just laid down on the bank and leaned over the water to get the pics with my phone and they were not very good. Supposed to rain tonight so the weather may determine when I get the pictures.

Waded in the little creek and got some better pics.

I've heard that American Pondweed is not too bad to have in a pond as weeds go. This is some type of pondweed but not sure what kind yet. In my old pond where I recently made the shallow "frog area" was thinking of transplanting some weed cover.

This is one I'm considering, but do not want to introduce somehting that will become a nightmare.

Better pics below.

American Pondweed is what many consider a beneficial cultivar - fairly manageable and easy to fish through. Not sure what species is in your photos, but it's certainly not American Pondweed. Looks pretty thick to me - might become a management issue?

During this time of the season, he's trying to pay the bills - and taxes.
-------------------
Not too sure of this ID since the OP's photos don't display key characteristics.

Without jumping to any conclusions, I'd ask if the plant in question resembles either photo-group shown below.

For future reference, these are the types of photos that are helpful for ID-purposes. Try to always have something in the photo for scale-reference. Show leaf-shape, size and marginal texture. Include close-ups that show how the leaves are attached and arranged along the stem relative to each other. Also include a wide-angle photo that depicts where and how the plant is growing within its primary habitat, especially in relation to the water's surface and shoreline.

Don't believe it resembles those. Leaves are alternating. I believe tape measure in pictures is half inch wide.

Okay. See if you can image a single plant (esp the upper portion) while held in your hand. Use sunlight as your light source and make sure the image is focused. Dial in a high aperture f-stop (smallest aperture diameter possible) if you're shooting manual - to get the deepest field of focus.