The term groundwater level is identified in base64 scheme by the sequence Z3JvdW5kd2F0ZXIgbGV2ZWw=, while the MD5 signature is equal to f5ce83d318327b15b70f6f20f5419f5a. The ASCII encoding of groundwater level in hexadecimal notation is 67726f756e647761746572206c6576656c.