Should the developer fail in his obligation to maintain the site or subdivision in a safe and orderly condition, the Township may, on five days' written notice, or immediately in the case of hazard to life, health or property, undertake whatever work may be necessary to return the site or subdivision to a safe and orderly condition and deduct the cost thereof from the ten-percent-cash-or-certified-check portion of the performance guaranty. Upon notice of such deduction, the developer shall, within 10 days, restore the full ten-percent-cash balance, or his performance guaranty will be held to be void, and the Township may take action as if final plat approval had not been obtained.