Cisterns, Cesspools Or Septic Tanks
Twenty years of CPSC NEISS emergency-room records for this consumer product category, combined with demographic breakdowns, multi-year injury trends, and matching recall notices.
Building Materials & Home Structures · CPSC Code 1818
Down 13% over 5 years
The verdict
Cisterns, Cesspools Or Septic Tanks carry a danger score of 32/100 (low risk), driven by roughly 494 ER-treated injuries a year that are declining by about 13% over the last five years.
- 32/100
- danger score (low risk)
- 494
- ER visits per year (avg)
- 7.4%
- end in hospital admission
- 55-64
- most-injured age group
Every figure is rendered from the CPSC NEISS record for product code 1818 - last data year 2024.
PlainSafety danger score
How this 32/100 score is built
The score is computed from four CPSC-derived factors for cisterns, cesspools or septic tanks - no opinion, no editorializing:
- Injury volume494 ER visits/yr
- Severity (hospitalization rate)7.4%
- Fatality rate0.00%
- 5-year trend-13%
See the full methodology for the exact weighting of each factor.
What the CPSC Data Shows
Cisterns, Cesspools Or Septic Tanks (CPSC product code 1818, in the Building Materials & Home Structures category) generate an estimated 494 emergency-room visits every year in the United States, adding up to roughly 9,878 ER-treated injuries across the 20-year span from 2005 to 2024. PlainSafety derives a danger score of 32/100 for this category (low risk), combining raw injury volume, demographic reach, severity of outcome, and multi-year trend. The five-year trajectory shows that injury counts are declining by about 13% over the last five years, with the busiest year on record being 2009 (995 estimated ER visits) and the quietest 2010 (175 estimated visits).
The single most common ER diagnosis for cisterns, cesspools or septic tanks is internal injury to the head, accounting for approximately 505 visits across the 20-year NEISS window, followed by strain, sprain to the lower trunk (477 cases). The 55-64 age group absorbs the largest share of injuries, about 1,743 cases over the NEISS window, and males appear slightly more often than the opposite sex in that cohort. Severity outcomes from the NEISS disposition field show that 7.4% of ER visits involving this product end in hospital admission or transfer.
Beyond the hospital-sampled NEISS projections, this page also aggregates 1 consumer incident report filed directly on SaferProducts.gov, plus 20 anonymized ER narratives - together forming a layered picture of how cisterns, cesspools or septic tanks fail in real households. Every figure on this page comes from CPSC-published data: NEISS projects national estimates from a probability sample of about 100 U.S. hospital emergency departments, while SaferProducts.gov collects voluntary reports from consumers, manufacturers, and clinicians. The danger score, trend indicators, and demographic breakdowns update automatically when CPSC releases a new yearly NEISS file, which is why this page is dated 2024-12-31. For regulatory context, consult CPSC recall notices and the SaferProducts.gov public database linked below.
Annual Injury Estimates (2005–2024)
Source: CPSC NEISS national estimates CPSC NEISS national estimates Injuries represent ER-treated cases only
Who Gets Injured?
| Age Group | Male | Female | Total |
|---|---|---|---|
| 0-4 | 370 | 352 | |
| 5-14 | 509 | 179 | |
| 15-24 | 491 | 327 | |
| 25-34 | 833 | 316 | |
| 35-44 | 1,275 | 336 | |
| 45-54 | 1,102 | 475 | |
| 55-64 | 1,159 | 584 | |
| 65-74 | 616 | 356 | |
| 75+ | 213 | 384 |
Most Common Injuries
| Body Part | Diagnosis | Est. Injuries |
|---|---|---|
| Head | Internal Injury | |
| Lower Trunk | Strain, Sprain | |
| Upper Trunk | Fracture | |
| Finger | Laceration | |
| Lower Leg | Laceration | |
| Finger | Fracture | |
| All Parts Body | Submersion | |
| All Parts Body | Poisoning | |
| Upper Trunk | Other | |
| Lower Leg | Contusions, Abr. | |
| Hand | Contusions, Abr. | |
| All Parts Body | Other | |
| Foot | Strain, Sprain | |
| Upper Trunk | Contusions, Abr. | |
| Hand | Laceration |
Severity Breakdown
ER Visit Narratives
Real anonymized emergency room reports from the CPSC NEISS database.
81YOM TRIPPED OVER SEPTIC TANK CAP OUTSIDE AND FELL HITTING THE CONCRETE, C/O L SHOULDER PAIN SWELLING TO R EYEBROW AREA, TAKES ***, DX FALL HEAD INJURY L UPPER EYELID HEMATOMA EYEBROW LACERATION SHOULDER SPRAIN KNEE ABRASION
59YOM STATES THAT HE WAS WORKING ON HIS MOTHER'S SEPTIC TANK WHEN HE ACCIDENTALLY CUT HIMSELF IN THE LOWER LEG WITH A BLADE THAT WAS ON THE GROUND THAT HAD SEPTIC FLUID ON IT SITE IS NOW LEAKING AND INFECTED DX: LACERATION; WOUND INFECTION; CELLULITIS
55 YOF WAS LIKELY STANDING ON A RAIN CISTERN APPROXIMATELY 4FT HIGH WHEN SHE FELL TO THE GROUND, LANDING ON WOOD CHIPS. DX: TRAUMATIC BRAIN INJURY WITH LOSS OF CONSCIOUSNESS, CERVICAL SPONDYLOSIS, VASOVAGAL SYNCOPE.
68YOM PRESENTS WITH SHOULDER PAIN. HE HAD TO DIG OUT HIS SEPTIC TANK FOUR DAYS AGO THROUGH COMPACTED SOIL AND TREE ROOTS DURING THE HEAT OF THE DAY. DX: LEFT SHOULDER PAIN
47YOM PRESENTS WITH LACERATION TO RIGHT MIDDLE FINGER AS WELL AS RIGHT HAND PAIN AFTER WHILE WORKING ON HIS SEPTIC TANK HIS HAND WAS CRUSHED BETWEEN METAL TANK AND CEMENT BLOCK DX: HAND CRUSH INJURY
8YOM FELL INTO A SEPTIC TANK DX: ABRASION KNEES AND AT LOWER LEGS
19 MOF FELL INTO SEPTIC TANK DX NON-FATIAL SUBMERSION
14YOF STEPPED ON A PIECE OF WOOD THAT HAD A NAIL IN IT WENT THROUGH SHOE INTO THE BOTTOM OF RIGHT FOOT DX: PUNCTURE WOUND FOOT
67YOM WAS CLEANING OUT SEPTIC TANK IN HIS RV AND NOW HAS ERYTHEMA AND SWELLING TO RIGHT HAND AND WRIST PAIN AND SWELLING. DX: CELLULITIS OF HAND
85YOF, ON *** STUMBLED WHILE GETTING OFF THE BACK PORCH INTO THE LAWN AND FELL HAS HEMATOMA TO THE FOREHEAD NO LOSS OF CONSCIOUS AND COMPLAINING OF HAND PAIN DX: CLOSED FRACTURE OF RIGHT HAND; SYNCOPE UNSPECIFIED; HEMATOMA
45YOF, COMPLAINING OF PERSISTENT LEFT LOWER LATERAL RIB PAIN SINCE FALLING ON FRIDAY STRIKING CHEST AGAINST A METAL CAP OF SEPTIC TANK DX: CONTUSTION OF RIB ON LEFT SIDE
40YOM LAC TO LOWER LEG ON CESSPOOL DRAIN
Consumer Incident Reports
Reports filed by consumers on SaferProducts.gov.
Multi-Flo in Lake County Our Multi-flo aerobic waste water treatment system (ATU) has been malfunctioning and overflowing for the 6+ years that we've had it and it was brand new when we moved in. We have spent thousands on this UN-SOUND system. It has been pumped out at least once per year and both pumps have broken at least once and so has the aerator and impeller. When we need a new part it often takes more than a week to get it sent from the manufacturer in Ohio, it's expensive and meanwhile sewage stews in the backyard. The "certified" service provider used to dump sewage in the woods behind the house and because of our complaints and the video we took he was successfully prosecuted and convicted in Feb. 2011. Since 2010 we have had to use an alternate service provider and problems still persist. We cannot afford to keep maintaining this environmentally unsafe machine. The multi-flo "monster" as one service provider (SP) calls it, is a boon to the septic pumpers who earn hundreds each time they come out. Multi-flo has a reputation for being horrible among every local pumper and SP we've talked to. Come to find out it's happening all over Lake County, according to our SP (that we pay $350/year for the privilege of someone to call when emergencies happen - which is about every few months) some people can't afford to have theirs pumped and sewage is running all over the ground on many properties in this beautiful part of Northern California. We have recent footage of a system that was fine for two years and now has been spewing sewage for two months here in my neighborhood: http://www.youtube.com/watch? v=I8NficsP84k Many houses would not have been built in this rural area if multi-flo had not been approved, so someone made money by getting them approved and installed during the housing boom of '03-'05. County Environmental Health Department says it's not their fault; the manufacturer Consolidated Treatment Systems (CTS) them without "trash tanks" (a pre-tan
Product Recalls
Search for active and past recalls related to cisterns, cesspools or septic tanks on the CPSC website.
Frequently Asked Questions
How dangerous are cisterns, cesspools or septic tanks?
Based on 20 years of CPSC data, cisterns, cesspools or septic tanks have a danger score of 32/100 (low risk). An estimated 494 ER-treated injuries occur annually in the U.S. related to this product category.
What are the most common injuries from cisterns, cesspools or septic tanks?
The most common injury is internal injury to the head, accounting for approximately 505 injuries over 20 years.
Are injuries from cisterns, cesspools or septic tanks increasing or decreasing?
Down 13% over 5 years.
Who is most at risk for cisterns, cesspools or septic tanks injuries?
The 55-64 age group accounts for the most injuries, with approximately 1,743 cases recorded over 20 years. Males are more frequently injured in this age group.
What happens when someone is injured by cisterns, cesspools or septic tanks?
Of all ER visits involving cisterns, cesspools or septic tanks, approximately 7.4% result in hospital admission. The majority of patients (92.6%) are treated and released from the emergency department.
How can I report a safety problem with cisterns, cesspools or septic tanks?
You can file a consumer incident report at SaferProducts.gov, the official CPSC reporting portal. Reports help the CPSC identify emerging hazards and trigger investigations or recalls. You can also call the CPSC hotline at 1-800-638-2772.
Related Products in Building Materials & Home Structures
Safety Guides
What this means for you
Treat the 32/100 score as relative risk between products, not your personal odds of injury.
- See where this category ranks against every other tracked product. Full rankings
- Injuries cluster in the 55-64 age group, take extra care if that describes your household.
- Check for active recalls on this product before you assume it is safe. CPSC recalls
NEISS estimates ER-treated injuries from a national probability sample of hospitals; they do not capture injuries treated elsewhere or not treated at all.
Data: CPSC National Electronic Injury Surveillance System (NEISS) 2005–2024 and SaferProducts.gov consumer incident reports. Injury estimates are based on a nationally representative probability sample of U.S. hospital emergency departments. This page is for informational purposes only and is not affiliated with the CPSC.
Read our methodology - how this data is sourced, scored, and verified.