(a) Employees working on the second shift shall receive forty cents (.40) per hour in addition to their base hourly wage. The second shift shall be considered to be any employee who starts four (4) hours after the regularly scheduled first shift starting time.
(b) Employees working on the third shift shall receive fifty cents (.50) per hour in addition to their base hourly wage. The third shift shall be considered to be any employee who starts four (4) hours after the regularly scheduled second shift starting time.
(c) Water reclamation operators in the operations section who actually work second shift shall receive a daily premium of two dollars and eighty cents ($2.80). This is only for time worked.
(d) Water reclamation operators in the operations section who actually work third shift shall receive a daily premium of four dollars ($4.00). This is only for time worked.
(e) Water reclamation operators within the operations section not working an entire second or third shift, by means of approved time off, shall receive a prorated portion of the daily premium equal to the percentage of the shift actually worked. No stipend is paid for absences credited to sick time or other unpaid time.