Content deleted Content added
Citation bot (talk | contribs) Alter: pages. Formatted dashes. | Use this bot. Report bugs. | Suggested by Abductive | #UCB_webform 3089/3850 |
also known as i&i |
||
Line 1:
[[File:Sewer overflow RI EPA.jpg|thumb|right|Excessive infiltration/inflow may cause sanitary sewer overflows during wet weather.]]
'''Infiltration/Inflow''' ('''I/I''' or '''I&I''') causes dilution in [[sanitary sewer]]s. Dilution of sewage decreases the efficiency of treatment, and may cause sewage volumes to exceed design capacity. Although inflow is technically different from infiltration, it may be difficult to determine which is causing dilution problems in inaccessible sewers. The [[United States Environmental Protection Agency]] defines the term infiltration/inflow as combined contributions from both.<ref name="EPA definition">U.S. Environmental Protection Agency (EPA), Washington, D.C. ''Code of Federal Regulations.'' "Part 35—State and Local Assistance."
* "Definitions; Excessive inflitation/inflow." 40 CFR 35.2005 (b)(16). {{USCFR|40|35|2005}}
* "Grants for Construction of Treatment Works; Infiltration/Inflow." {{USCFR|40|35|2120}}</ref><ref>{{cite techreport |date=June 2014 |title=Guide for Estimating Infiltration and Inflow |institution=U.S. EPA New England |url=https://www3.epa.gov/region1/sso/pdfs/Guide4EstimatingInfiltrationInflow.pdf |access-date=8 May 2023}}</ref>
==Background==
| |||