I recently ran MHDD on the hard drive in the subject line. The results are as follows:

<3ms: 3817028
<10ms: 12920
<50ms: 515
<150ms: 19
<500ms: 2

I had no sectors >500ms, and I did not have any UNCs or anything else. I only had warnings at 667335 & 6284475.

Can someone more knowledgeable than me tell me if I need a new hard drive? The disk has been wiped with Wipe My Disks from this site. Thanks in advance to all who can give me some tips and information

It's worn out , not at dead end of lifetime. If you find a pro in your area who can professionally refurbish it (need dedicated hw for it) for a small fee go for it otherwise use for noncritical storage , use another and carry on. I can't help, too far.

Thanks for your answer. I am just going to get a new drive. I appreciate your help!