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Do You Ingest Lead Daily?
I have some information about Lead today.
I learned that the water supply system shall have a maximum of 8-percent lead content, way back when I was studying for the journeyman plumbing test. Learning this concerned me. I knew that lead was taken out of paint and gas back in the 70's. Why would any lead be allowed in the water supply system? Lead has no role in the healthy functioning of any organism on the planet. It is not a trace mineral. Lead is not essential for body functioning.
Thankfully The Reduction of Lead in Drinking Water Act lowered the maximum lead content to 0.25%, back in January 4, 2014.
I would highly recommend that everybody that lives in a house built before January 4, 2014, get some kind of water filtration system that will remove the lead. It would be a great idea to have a whole house filtration system installed at the point of entry of your dwelling and to have the water lines replaced.
I have added some information about lead & health, leaded gas and lead & drinking water.
There are links for all information, with sources like leadpro, OSHA, EPA and the International Plumbing Code.
5. How does lead affect the body?
Children's Reaction to Lead (micrograms per deci-liter)
Blood Lead Level Possible Health Effects
10 ug/dL Slight loss in IQ; hearing and growth problems
20 ug/dL Moderate loss in IQ; hyperactivity; poor attention span; difficulty learning; language and speech problems; slower reflexes
40 ug dL Poor bone and muscle development; clumsiness; lack of coordination; early anemia; fewer red blood cells to carry oxygen and iron; tiredness; drowsiness
50 ug/dL Stomach aches and cramps; anemia; destruction of red blood cells; brain damage
100 ug/dL & above Swelling of the brain; seizures; coma; death
Adult Reaction to Lead (micrograms per deci-liter)
Blood Lead Level Possible Health Effects
15 ug/dL Increase in blood pressure; harmful effects on fetus; joint and muscle aches
25 ug/dL Reproductive problems
40 ug/dL Kidney damage; damage to blood formation
60 ug/dL Anemia; nerve damage; constipation; stomach pains; irritability and fatigue; memory and concentration problems; clumsiness; drowsiness and sleep problems
80 ug/dL & above Blue line on gums; uncontrollable shaking of hands; wrist and foot drop; hallucinations; brain damage; coma; death
Source: ATSDR; California Health Dept 1993
13. What is the likelihood of lead contamination in my drinking water?
Since June,1986 the SAFE DRINKING WATER ACT required the use of lead-free pipe, solder and flux in the installation or repair of plumbing systems connected to public water systems. Prior to that time, most solder contained about 50% lead. The law gave states until 1988 to enforce the new limitations. However, there is evidence that some plumbers continued to use lead solder for some time.
Epidemiological and experimental studies indicate that chronic exposure resulting in blood lead levels (BLL) as low as 10 µg/dL in adults are associated with impaired kidney function, high blood pressure, neevous system and neurobehavioral effects, cognitive dysfunction later in life, and subtle cognitive effects attributed to prenatal exposure. Pregnant women need to be especially concerned with reducing BLL since this can have serious impact on the developing fetus.
The Clean Air Act Amendments of 1990 mandate the elimination of lead from all U.S. motor fuel by January 1, 1996. This represents the final step in a gradual reduction of lead in gasoline since the early 1970s. "Regular" gasoline typically contained approximately 4.0 grams of lead per gallon; average lead
content was reduced to 0.5 gram/gallon in 1985, and still further to 0.1 gram/gallon in 1986.
"Unleaded gasoline" is allowed to contain no more than 5/100ths of a gram of lead per gallon.
Why remove lead from gasoline?
Lead is extremely toxic. Studies show that exposure to high concentrations of lead, particularly in young children, can result in damage to the central nervous system, and may be associated with high blood pressure in adults. Human exposure to lead typically occurs via inhalation of air and ingestion of lead in food, soil, water or dust.
605.2 Lead contant of water supply pipe and fittings.
Pipe and pipe fittings, including valves and faucets, utilized in the water supply system shall have a maximum of 8-percent lead content.
605.14 Copper pipe.
605.14.3 Soldered joints.
Solder joints shall be made in accordance with the methods of ASTM B 828. Cut tube ends shall be reamed to the full inside diameter of the tube end. Joint surfaces shall be cleaned. A flux conforming to ASTM B 813 shall be applied. The joint shall be soldered with a solder conforming to ASTM B 32. The joining of water supply piping shall be made with lead-free solder and fluxes. "Lead free shall mean a chemical composition equal to or less than 0.2-percent lead.
The Reduction of Lead in Drinking Water Act was enacted on January 4, 2011 and had an effective date of January 4, 2014. It lower the maximum lead content of the wetted surfaces of plumbing products such as pipes, pipe fittings, plumbing fittings and fixtures from 8.0% to a weighted average of 0.25%.
Pure Water Plumbing offers lead removing filters (a synthetic Aluminum Oxide adsorbant media specifically designed to have a high affinity for Fluoride, Lead and Arsenic. It removes metals through a mixture of adsorption and chemical reaction with the media; therefore, the elimination is not reliant on ion exchange). We have many models to choose from. Some are on our website here http://www.pure-water-plumbing.com and some are available offline. Browse the web store and for more options & to setup an appointment...